BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Claremont Center for the Mathematical Sciences - ECPv6.15.17.1//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Claremont Center for the Mathematical Sciences
X-ORIGINAL-URL:https://colleges.claremont.edu/ccms
X-WR-CALDESC:Events for Claremont Center for the Mathematical Sciences
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Los_Angeles
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20170312T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20171105T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20180311T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20181104T090000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
TZNAME:PDT
DTSTART:20190310T100000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
TZNAME:PST
DTSTART:20191103T090000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;VALUE=DATE:20180127
DTEND;VALUE=DATE:20180129
DTSTAMP:20260404T010712
CREATED:20181213T064745Z
LAST-MODIFIED:20181213T064745Z
UID:987-1517011200-1517183999@colleges.claremont.edu
SUMMARY:Claremont Math Weekend 2018
DESCRIPTION:Click here for program.
URL:https://colleges.claremont.edu/ccms/event/claremont-math-weekend-2018/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Claremont Math Weekend
ORGANIZER;CN="Marina Chugunova":MAILTO:Marina.Chugunova@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180214T160000
DTEND;TZID=America/Los_Angeles:20180214T170000
DTSTAMP:20260404T010712
CREATED:20180212T231323Z
LAST-MODIFIED:20180212T231323Z
UID:139-1518624000-1518627600@colleges.claremont.edu
SUMMARY:A tribute to Euler
DESCRIPTION:Among the greatest of mathematicians is Leonhard Euler (1707-1783)\, whose insight\, industry\, and ingenuity are unsurpassed in the long history of mathematics. In this talk we sketch Euler’s life\, describe the quantity and quality of his mathematical output\, and discuss a few of his discoveries from the realms of number theory\, geometry\, analysis\, and combinatorics. We then look at a specific theorem: his proof\, using integral calculus (!)\, of what is known as “Euler’s Identity” -i.e.\, exp(ix)=cos(x)+isin(x). We should thereby get a sense of Euler’s genius and see why he is rightly known as “the Master of Us All.” NOTE: This talk should be accessible to any student who has seen calculus.
URL:https://colleges.claremont.edu/ccms/event/a-tribute-to-euler/
LOCATION:Freeberg Forum\, LC 62\, Kravis Center\, CMC
CATEGORIES:Colloquium
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180905T160000
DTEND;TZID=America/Los_Angeles:20180905T180000
DTSTAMP:20260404T010712
CREATED:20180829T171559Z
LAST-MODIFIED:20180929T045429Z
UID:482-1536163200-1536170400@colleges.claremont.edu
SUMMARY:Pre-Colloquium Non-Colloquium Party
DESCRIPTION:The traditional year-opening social event for the Claremont Colleges Mathematics Community will be held in the Millikan Courtyard. Spouses\, partners\, and family are welcome. Professors Ali Nadim (CGU) and Blerta Shtylla (POM)\, co-chairs\, hope to see everyone there for refreshments\, and other pleasant pursuits.
URL:https://colleges.claremont.edu/ccms/event/pre-colloquium-non-colloquium-party/
LOCATION:Millikan Courtyard\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180910T161500
DTEND;TZID=America/Los_Angeles:20180910T171500
DTSTAMP:20260404T010712
CREATED:20180828T000627Z
LAST-MODIFIED:20180828T000954Z
UID:473-1536596100-1536599700@colleges.claremont.edu
SUMMARY:Applied math organizational meeting
DESCRIPTION:We will have an organizational meeting for the applied math seminar today. Anyone who is interested in suggesting speakers and/or organizing applied math seminar is welcome to come. 
URL:https://colleges.claremont.edu/ccms/event/applied-math-organizational-meeting/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180911T121500
DTEND;TZID=America/Los_Angeles:20180911T131000
DTSTAMP:20260404T010712
CREATED:20180822T052223Z
LAST-MODIFIED:20180926T174358Z
UID:451-1536668100-1536671400@colleges.claremont.edu
SUMMARY:Small representations of integers by integral quadratic form (Lenny Fukshansky\, CMC)
DESCRIPTION:Given an isotropic integral quadratic form which assumes a value t\, we investigate the distribution of integer points at which this value is assumed. Building on the previous work about the distribution of small-height zeros of quadratic forms\, we produce bounds on height of points outside of some algebraic sets in a quadratic space at which the form assumes the value t. Our bounds on height are explicit in terms of heights of the form\, the space\, the algebraic set and the value t. Joint work with W. K. Chan. \nThe Fall 2018 organizational meeting for the ANTC seminar will be held at noon in the same room\, preceding the talk.
URL:https://colleges.claremont.edu/ccms/event/small-representations-of-integers-by-integral-quadratic-form/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180912T161500
DTEND;TZID=America/Los_Angeles:20180912T171500
DTSTAMP:20260404T010712
CREATED:20180905T170527Z
LAST-MODIFIED:20180926T174310Z
UID:513-1536768900-1536772500@colleges.claremont.edu
SUMMARY:An Algebra of Arcs and Knots on a Surface (Helen Wong\, CMC)
DESCRIPTION:The end of the previous century saw radical changes to three-dimensional topology\, which arose from two completely different approaches. One breakthrough came from Bill Thurston’s introduction of hyperbolic geometry into the field. The second one came from the Vaughn Jones’s discovery of a new “quantum” invariant for knots that brought in insight and techniques from mathematical physics and non-commutative algebra. It is widely believed that the two approaches are related. \nIn this talk\, we will focus on a point of connection introduced over five years ago by J. Roger and T. Yang.  They defined an algebra of arcs and knots on a surface that is both  obviously related to the quantum invariants and motivated by hyperbolic geometry.  We will give a overview of what’s known about this algebra of arcs and knots on a surface.  Warning: there will be lots of pictures of arcs and knots on surfaces.
URL:https://colleges.claremont.edu/ccms/event/an-algebra-of-arcs-and-loops-on-a-surface/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180917T161500
DTEND;TZID=America/Los_Angeles:20180917T171500
DTSTAMP:20260404T010712
CREATED:20180828T201223Z
LAST-MODIFIED:20180926T235724Z
UID:481-1537200900-1537204500@colleges.claremont.edu
SUMMARY:Diffusion\, Social Networks\, and Logic (Pavel Naumov\, CMC)
DESCRIPTION:Once a new commercial product\, technology\, political opinion\, or social norm is adopted by a few people\, these few often put peer pressure on others to consider adopting it as well. Those who adopt next put even more pressure on the rest of the population. This cascading “epidemic” effect is often called diffusion in social networks. There are many natural questions that can be asked about diffusion. Which initial group of people should get “infected” by a new product to ensure its adoption by the largest possible group? Which group should be convinced that an idea is bad\, in order to avoid its wide spread? How does marketing affect the diffusion? In this talk I will introduce the most commonly used mathematical model of diffusion and talk about several of my papers on logical systems that capture properties of this model.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-prof-pavel-naumov-cmc/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180918T121500
DTEND;TZID=America/Los_Angeles:20180918T131000
DTSTAMP:20260404T010712
CREATED:20180822T051451Z
LAST-MODIFIED:20180926T174121Z
UID:449-1537272900-1537276200@colleges.claremont.edu
SUMMARY:Inversions for reduced words (Sami Assaf\, USC)
DESCRIPTION:The number of inversions of a permutation is an important statistic that arises in many contexts\, including as the minimum number of simple transpositions needed to express the permutation and\, equivalently\, as the rank function for weak Bruhat order on the symmetric group. In this talk\, I’ll describe an analogous statistic on the reduced expressions for a given permutation that turns the Coxeter graph into a ranked poset with unique maximal element. This statistic simplifies greatly when shifting our paradigm from reduced expressions to balanced tableaux\, and I’ll use this simplification to give an elementary proof computing the diameter of the Coxeter graph for the long permutation. \nThis talk is elementary and assumes no background other than passing familiarity with the symmetric group.
URL:https://colleges.claremont.edu/ccms/event/tba-3/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180919T161500
DTEND;TZID=America/Los_Angeles:20180919T171500
DTSTAMP:20260404T010712
CREATED:20180917T212805Z
LAST-MODIFIED:20190910T210038Z
UID:557-1537373700-1537377300@colleges.claremont.edu
SUMMARY:Fall 2018 Poster Session
DESCRIPTION:CLAREMONT CENTER for MATHEMATICAL SCIENCES\nFall 2018 Poster Session \nClick here for poster abstracts. \nComputing Eigenmodes of the Laplace-Beltrami Operator by Using Radial Basis Functions\nby Vladimir Delengov\, Chiu-Yen Kao\nClaremont Graduate University \nCovariance-based Dissimilarity Measures Applied to Clustering Wide-sense Stationary Ergodic Processes\nby Nan Rao\, Qidi Peng\, Ran Zhao\nClaremont Graduate University \nGeneralized Covariation of Symmetric -stable Distributions\nby Yujia Ding\, Qidi Peng\nClaremont Graduate University \nLearning to Fail: Predicting Fracture Evolution in Brittle Materials using Recurrent Graph Convolutional Neural Networks\nby Yadong Ruan\, Zhengming Song\, Max Schwarzer\, Bryce Rogan\, Diana Lee\, Allon G. Percus\, Viet T. Chau\, Gowri Srinivasan\, Hari Viswanathan\, Bryan Moore\nClaremont Graduate University \nTribracket Modules\nby Yingqi Shi\, Deanna Needell\, Sam Nelson\, Yingqi Shi\nClaremont Mckenna College \nEquiangular Tight Frames and Corresponding Lattices\nby Jessie Xin\, Lenny Fukshansky\nClaremont Mckenna College \nQuandle Coloring Quivers\nby Karina Cho\, Sam Nelson\nHarvey Mudd College \nEffective Bounds for Traces of Maass-Poincar Series\nby Havi Ellers\nHarvey Mudd College \nPersonal Beliefs and Election Forecasts\nby Harry Bendekgey\nPomona College \nHemoglobin Response to Higher Order Gene Interactions\nby Sylvia Akueze Nwakanma\, Lillian Gonzales\, Rosa Garza\nPomona College \nExploring Cell Differentiation Trajectories through Data Reduction\nby Gianna Wu\, Michelle Li\nPomona College
URL:https://colleges.claremont.edu/ccms/event/fall-2018-poster-session/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium,Special Event
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180925T121500
DTEND;TZID=America/Los_Angeles:20180925T131000
DTSTAMP:20260404T010712
CREATED:20180911T213219Z
LAST-MODIFIED:20180926T151534Z
UID:531-1537877700-1537881000@colleges.claremont.edu
SUMMARY:Quandle coloring quivers (Sam Nelson\, CMC)
DESCRIPTION:Given a finite quandle $X$\, a set $S \subset \mathrm{Hom}(X\,X)$ of quandle endomoprhisms\, and an oriented knot or link $L$\, we construct a quiver-valued invariant of oriented knots and links. This quiver categorifies the quandle counting invariant in the most literal sense and can be used to define many enhancements of the counting invariant. This is joint work with Harvey Mudd College student Karina Cho.
URL:https://colleges.claremont.edu/ccms/event/talk-by-sam-nelson-cmc/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180926T161500
DTEND;TZID=America/Los_Angeles:20180926T171500
DTSTAMP:20260404T010712
CREATED:20180912T220655Z
LAST-MODIFIED:20180926T174030Z
UID:554-1537978500-1537982100@colleges.claremont.edu
SUMMARY:Snow Business: Scientific Computing in the Movies and Beyond (Joseph Teran\, UCLA)
DESCRIPTION:New applications of scientific computing for solid and fluid mechanics problems include simulation of virtual materials in movie visual effects and virtual surgery. Both disciplines demand physically realistic dynamics for materials like water\, smoke\, fire\, and soft tissues. New algorithms are required for each area. Teran will speak about the simulation techniques required in these fields and will share some recent results including: simulated surgical repair of biomechanical soft tissues; extreme deformation of elastic objects with contact; high resolution incompressible flow; and clothing and hair dynamics. He will also discuss a new algorithm used for simulating the dynamics of snow in Disney’s animated feature film\, “Frozen.”
URL:https://colleges.claremont.edu/ccms/event/scientific-computing-in-the-movies-and-beyond/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20180927T131500
DTEND;TZID=America/Los_Angeles:20180927T141500
DTSTAMP:20260404T010712
CREATED:20180925T052200Z
LAST-MODIFIED:20180926T052538Z
UID:619-1538054100-1538057700@colleges.claremont.edu
SUMMARY:Reaction-Diffusion Equations under Perturbations of the Domain (Professor Jose Arrieta\, Universidad Complutense de Madrid\, Spain)
DESCRIPTION:We analyze the behavior of the asymptotic dynamics of dissipative reaction-diffusion equations with Neumann boundary conditions when the domain where the equation is posed undergoes certain perturbation. We will focus on the behavior of the stationary solutions\, their local unstable manifolds and the attractors. \nWe will consider “regular” perturbations of the domain\, that is\, perturbations for which the spectra of the Laplace operator behaves continuously. In this case\, it turns out that if all the equilibria of the unperturbed system are nondegenerate (hyperbolic)\, then both the equilibria and their local unstable manifolds behave continuously under the perturbation. Exploiting the gradient properties of the flow we will show that the “attractors” also behave continuously. \nWe may also consider some “non-regular” perturbations of the domain. In this situation\, the problem needs to be studied and the technique adapted for each particular case. An interesting example of non regular perturbations is the “dumbbell domain” which consists in two domains joined by a very thin channel which degenerates to a line segment. We will describe the results obtained for this perturbation.
URL:https://colleges.claremont.edu/ccms/event/reaction-diffusion-equations-under-perturbations-of-the-domain/
LOCATION:Shanahan 3465\, Harvey Mudd College\, 301 Platt Blvd.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Special Event
ORGANIZER;CN="Alfonso Castro":MAILTO:castro@g.hmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181002T121500
DTEND;TZID=America/Los_Angeles:20181002T131000
DTSTAMP:20260404T010712
CREATED:20180911T213738Z
LAST-MODIFIED:20180926T151643Z
UID:533-1538482500-1538485800@colleges.claremont.edu
SUMMARY:An Introduction to the Sato-Tate Conjecture (Edray Goins\, Pomona College)
DESCRIPTION:In 1846\, Ernst Eduard Kummer conjectured a distribution of values of a cubic Gauss sum after computing a few values by hand.  This was forgotten about for nearly 100 years until John von Neumann and Herman Goldstine attempted to verify the conjecture as a way to test the new ENIAC machine in 1953.  They found evidence that the conjecture was false\, but trusted Kummer more than they did their digital computer.  The conjecture would hold until 1979\, when Roger Heath-Brown and Samuel Patterson proved it to be false. \nA few years earlier in 1965\, Mikio Sato and John Tate independently came up with a conjecture which gave the correct distribution of these cubic Gauss sums — although it was expressed slightly differently in terms of counting points of elliptic curves over finite fields.  In this talk\, we give an overview of the Sato-Tate Conjecture\, present an approach by Jean-Pierre Serre following his paper from 1967\, then sketch the 2006 proof of the conjecture following the ideas of Laurent Clozel\, Michael Harris\, Nicholas Shepherd-Barron and Richard Taylor. \nHere are the slides of this lecture: Edray Goins’ slides.
URL:https://colleges.claremont.edu/ccms/event/talk-by-edray-goins-pomona-college/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181003T161500
DTEND;TZID=America/Los_Angeles:20181003T171500
DTSTAMP:20260404T010712
CREATED:20180928T164701Z
LAST-MODIFIED:20180928T164701Z
UID:834-1538583300-1538586900@colleges.claremont.edu
SUMMARY:Modeling Mechanisms of Ovulatory (Dys)Function (Erica Graham\, Bryn Mawr College)
DESCRIPTION:A normally functioning menstrual cycle requires significant crosstalk between hormones originating in ovarian and brain tissues. Reproductive hormone dysregulation may disrupt function and can lead to infertility\, as occurs in the common endocrine disorder polycystic ovarian syndrome (PCOS). In this talk\, I will discuss a mathematical model of the ovulatory cycle that accounts for mechanisms of ovarian testosterone production and explore insulin-mediated ovulatory dysfunction.  I will also explore additional model characteristics\, via bifurcations and parameter sensitivity\, and their respective clinical implications.
URL:https://colleges.claremont.edu/ccms/event/modeling-mechanisms-of-ovulatory-dysfunction-erica-graham-bryn-mawr-college/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181006T100000
DTEND;TZID=America/Los_Angeles:20181006T120000
DTSTAMP:20260404T010712
CREATED:20180925T191047Z
LAST-MODIFIED:20180926T051652Z
UID:653-1538820000-1538827200@colleges.claremont.edu
SUMMARY:GEMS Workshop: Knots and how to tell them apart (Professor Sam Nelson\, Claremont McKenna College)
DESCRIPTION:WHAT IS GEMS: \nThe Gateway to Exploring Mathematics program (GEMS) is a series of workshops that helps excite the interests and curiosity of young students in mathematics and science \nGEMS meets once a month on a Saturday morning from 10:00 AM to 12:00 PM \nGEMS is designed to reach 8th\, 9th and 10th grade students who have an interest in mathematics and science \nParticipants interact with excellent and award winning faculty\, staff\, students and alumni from each of the seven Claremont Colleges \nFALL 2018 DATES: \nOctober 6\, 2018 \nNovember 3\, 2018 \nDecember 8\, 2018 \nREGISTRATION: \nTo register for our first event on October 6\, 2018 please click on the following link: \nhttps://tinyurl.com/GEMS2018Fall \nANY QUESTIONS:  \nPlease contact our 2018-2019 GEMS coordinator\, Elsa Harris at Elsa.Harris@cgu.edu
URL:https://colleges.claremont.edu/ccms/event/fall-2018-gems-workshop-series/
LOCATION:Shanahan 1480\, Harvey Mudd College\, 301 Platt Blvd.\, Claremont\, CA\, 91711\, United States
CATEGORIES:GEMS
ORGANIZER;CN="Elsa Harris":MAILTO:elsa.harris@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181009T121500
DTEND;TZID=America/Los_Angeles:20181009T131000
DTSTAMP:20260404T010712
CREATED:20180912T160739Z
LAST-MODIFIED:20181001T220127Z
UID:546-1539087300-1539090600@colleges.claremont.edu
SUMMARY:State Polytopes of Combinatorial Neural Codes (Rob Davis\, HMC)
DESCRIPTION:Combinatorial neural codes are 0/1 vectors that are used to model the co-firing patterns of a set of place cells in the brain. One wide-open problem in this area is to determine when a given code can be algorithmically drawn in the plane as a Venn diagram-like figure. A sufficient condition to do so is for the code to have a property called k-inductively pierced. Gross\, Obatake\, and Youngs recently used toric algebra to show that a code on three neurons is 1-inductively pierced if and only if the toric ideal is trivial or generated by quadratics. No result is known for additional neurons in the same generality. \nIn this talk\, we study two infinite classes of combinatorial neural codes in detail. For each code\, we explicitly compute its universal Gröbner basis. This is done for the first class by recognizing that the codewords form a Lawrence-type matrix. With the second class\, this is done by showing that the matrix is totally unimodular. These computations allow one to compute the state polytopes of the corresponding toric ideals\, from which all distinct initial ideals may be computed efficiently. Moreover\, we show that the state polytopes are combinatorially equivalent to well-known polytopes: the permutohedron and the stellohedron.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-by-rob-davis-hmc/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181010T041500
DTEND;TZID=America/Los_Angeles:20181010T171500
DTSTAMP:20260404T010712
CREATED:20180928T170449Z
LAST-MODIFIED:20181005T213928Z
UID:838-1539144900-1539191700@colleges.claremont.edu
SUMMARY:Applications of Cayley Digraphs to Waring's Problem and Sum-Product Formulas (Yesim Demiroglu\, Harvey Mudd)
DESCRIPTION:Abstract: In this talk\, we first present some elementary new proofs (using Cayley digraphs and spectral graph theory) for Waring’s problem over finite fields\, and explain how in the process of re-proving these results\, we obtain an original result that provides an analogue of Sarkozy’s theorem in the finite field setting (showing that any subset E of a finite field Fq for which |E| >  (qk)/sqrt{q – 1}must contain at least two distinct elements whose difference is a kth power). Once we have our results for finite fields\, we apply some classical mathematics to extend our Waring’s problem results to the context of general (not  necessarily commutative) finite rings. In the second half of our talk\, we present our sum-product results related to matrix rings over finite fields\, which can again be proven using Cayley digraphs and spectral graph theory in an efficient way.
URL:https://colleges.claremont.edu/ccms/event/yesim-demiroglu-harvey-mudd/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181015T161500
DTEND;TZID=America/Los_Angeles:20181015T171500
DTSTAMP:20260404T010712
CREATED:20180911T004755Z
LAST-MODIFIED:20180927T002145Z
UID:525-1539620100-1539623700@colleges.claremont.edu
SUMMARY:Agent-Based and Continuous Models of Locust Hopper Bands: The Role of Intermittent Motion\, Alignment\, Attraction and Repulsion (Andrew J. Bernoff\, HMC)
DESCRIPTION:Locust swarms pose a major threat to agriculture\, notably in northern Africa and the Middle East. In the early stages of aggregation\, locusts form hopper bands. These are coordinated groups that march in columnar structures that are often kilometers long and may contain millions of individuals. We propose a model for the formation of locust hopper bands that incorporates intermittent motion\, alignment with neighbors\, and social attraction\, all behaviors that have been validated in experiments. Using a particle-in-cell computational method\, we simulate swarms of up to a million individuals\, which is several orders of magnitude larger than what has previously appeared in the locust modeling literature. We observe hopper bands in this model forming as a fingering instability. Our model also allows homogenization to yield a system of partial integro-differential evolution equations. We identify a bifurcation from a uniform marching state to columnar structures\, suggestive of the formation of hopper bands.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-prof-andrew-j-bernoff-hmc/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181016T121500
DTEND;TZID=America/Los_Angeles:20181016T131000
DTSTAMP:20260404T010712
CREATED:20181008T194923Z
LAST-MODIFIED:20181008T194923Z
UID:897-1539692100-1539695400@colleges.claremont.edu
SUMMARY:The Bateman—Horn Conjecture\, Part I: heuristic derivation (Stephan Garcia\, Pomona)
DESCRIPTION:The Bateman—Horn Conjecture is a far-reaching statement about the distribution of the prime numbers.  It implies many known results\, such as the Green—Tao theorem\, and a variety of famous conjectures\, such as the Twin Prime Conjecture.  In this expository talk\, we start from basic principles and provide a heuristic argument in favor of the conjecture.  This talk should be accessible to undergraduates with a background in modular arithmetic.
URL:https://colleges.claremont.edu/ccms/event/the-bateman-horn-conjecture-part-i-heuristic-derivation-stephan-garcia-pomona/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181017T161500
DTEND;TZID=America/Los_Angeles:20181017T171500
DTSTAMP:20260404T010712
CREATED:20180904T171513Z
LAST-MODIFIED:20181001T150735Z
UID:499-1539792900-1539796500@colleges.claremont.edu
SUMMARY:Great Expectations (Matthew Junge\, Duke Univ.)
DESCRIPTION:The mean of a random quantity is supposed to confirm our expectations. What happens when it defies them? We will look at a few famous expected values; some old\, some new\, all great.
URL:https://colleges.claremont.edu/ccms/event/great-expectations/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181024T161500
DTEND;TZID=America/Los_Angeles:20181024T171500
DTSTAMP:20260404T010712
CREATED:20180928T170717Z
LAST-MODIFIED:20181013T155440Z
UID:841-1540397700-1540401300@colleges.claremont.edu
SUMMARY:Isometric Circle Actions (Catherline Searle\, Wichita State)
DESCRIPTION:I will begin by describing a number of important examples of isometric actions of circles in Euclidean space and their restrictions to subspaces of Euclidean space. The goal of the talk will be to see how isometric actions of circles and tori can be used to “recognize” the space on which they are acting.
URL:https://colleges.claremont.edu/ccms/event/catherline-searle-wichita-state/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181029T161500
DTEND;TZID=America/Los_Angeles:20181029T171500
DTSTAMP:20260404T010712
CREATED:20180910T073543Z
LAST-MODIFIED:20181016T222630Z
UID:520-1540829700-1540833300@colleges.claremont.edu
SUMMARY:Minimal Gaussian Partitions\, Clustering Hardness and Voting (Steven Heilman\, USC)
DESCRIPTION:A single soap bubble has a spherical shape since it minimizes its surface area subject to a fixed enclosed volume of air.  When two soap bubbles collide\, they form a “double-bubble” composed of three spherical caps.  The double-bubble minimizes total surface area among all sets enclosing two fixed volumes.  This was proven mathematically in a landmark result by Hutchings-Morgan-Ritore-Ros and Reichardt using the calculus of variations in the early 2000s.  The analogous case of three or more Euclidean sets is considered difficult if not impossible.  However\, if we replace Lebesgue measure in these problems with the Gaussian measure\, then recent work of myself (for 3 sets) and of Milman-Neeman (for any number of sets) can actually solve these problems.  We also use the calculus of variations.  We will discuss applications of this Gaussian “multi-bubble” problem to optimal clustering of data and to designing elections that are resilient to hacking.
URL:https://colleges.claremont.edu/ccms/event/applied-math-seminar-given-by-prof-steven-heilman/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181030T121500
DTEND;TZID=America/Los_Angeles:20181030T131000
DTSTAMP:20260404T010712
CREATED:20180823T224159Z
LAST-MODIFIED:20181024T083012Z
UID:471-1540901700-1540905000@colleges.claremont.edu
SUMMARY:Uniform asymptotic growth of symbolic powers  (Robert Walker\, University of Michigan)
DESCRIPTION:Algebraic geometry (AG) is a major generalization of linear algebra which is fairly influential in mathematics. Since the 1980’s with the development of computer algebra systems like Mathematica\, AG has been leveraged in areas of STEM as diverse as statistics\, robotic kinematics\, computer science/geometric modeling\, and mirror symmetry. Part one of my talk will be a brief introduction to AG\, to two notions of taking powers of ideals (regular vs symbolic) in Noetherian commutative rings\, and to the ideal containment problem that I study in my thesis. Part two of my talk will focus on stating the main results of my thesis in a user-ready form\, giving a “comical” example or two of how to use them. At the risk of sounding like Paul Rudd in Ant-Man\, I hope this talk with be awesome.
URL:https://colleges.claremont.edu/ccms/event/tba-4/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181031T161500
DTEND;TZID=America/Los_Angeles:20181031T171500
DTSTAMP:20260404T010712
CREATED:20180928T171011Z
LAST-MODIFIED:20181025T210738Z
UID:845-1541002500-1541006100@colleges.claremont.edu
SUMMARY:Saving Bats from Fungal Diseases with Linear Algebra (Nina Fefferman\, U of Tennessee-Knoxville)
DESCRIPTION:Abstract: Bats in North America have been dying off due to the invasion of a fungal disease (White Nose Syndrome). In this talk\, I’ll present a very simple linear algebraic model to predict the magnitude of the die-offs. By comparing these models to some data about actual bat survival\, my collaborator and I also hypothesized that the disease might be causing rapid evolution in the bat populations and this could give some populations better hope of surviving. I’ll go through these models and show how the predictions they make are different from models that don’t include bat evolution. I’ll also talk a little about some of the intervention strategies that have been proposed to help bat populations survive\, and use these models to show how some of them might accidentally hurt rather than help\, if we don’t figure out whether the main impacts of disease are evolutionary or immunological first.
URL:https://colleges.claremont.edu/ccms/event/nina-fefferman-u-of-tennessee-knoxville/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181103T100000
DTEND;TZID=America/Los_Angeles:20181103T120000
DTSTAMP:20260404T010712
CREATED:20181002T034850Z
LAST-MODIFIED:20181020T192824Z
UID:884-1541239200-1541246400@colleges.claremont.edu
SUMMARY:GEMS Workshop: Exploring the fascinating world of prime numbers\, Part I with Professor  Adolfo Rumbos\, from Pomona College.
DESCRIPTION:TOPIC: Exploring the fascinating world of prime numbers\, Part I \nThe study of patterns in the sequence of prime numbers has fascinated mathematicians for centuries.  Are there formulas that generate prime numbers?  Are there patterns in the distribution of prime numbers and the distribution of gaps between consecutive primes?  In this series of two workshops\, beginning with the proof of the infinitude of the primes and modular arithmetic\, we explore some facts about prime numbers\, solve some puzzles related to primes\, and survey a few of the questions that are still unsolved. \nWHAT IS GEMS: \nThe Gateway to Exploring Mathematics program (GEMS) is a series of workshops that helps excite the interests and curiosity of young students in mathematics and science \nGEMS meets once a month on a Saturday morning from 10:00 AM to 12:00 PM \nGEMS is designed to reach 8th\, 9th and 10th grade students who have an interest in mathematics and science \nParticipants interact with excellent and award winning faculty\, staff\, students and alumni from each of the seven Claremont Colleges \nFALL 2018 DATES: \nOctober 6\, 2018 \nNovember 3\, 2018 \nDecember 8\, 2018 \nREGISTRATION: \nTo register for our next event on November 3\, 2018 please click on the following link: \nhttps://tinyurl.com/GEMS2018Fall2 \nANY QUESTIONS: \nPlease contact our 2018-2019 GEMS coordinator\, Elsa Harris at Elsa.Harris@cgu.edu
URL:https://colleges.claremont.edu/ccms/event/gems-workshop-speaker-will-be-announced-soon/
LOCATION:Shanahan 1480\, Harvey Mudd College\, 301 Platt Blvd.\, Claremont\, CA\, 91711\, United States
CATEGORIES:GEMS
ORGANIZER;CN="Elsa Harris":MAILTO:elsa.harris@cgu.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181105T161500
DTEND;TZID=America/Los_Angeles:20181105T171500
DTSTAMP:20260404T010712
CREATED:20180808T152839Z
LAST-MODIFIED:20181021T054250Z
UID:416-1541434500-1541438100@colleges.claremont.edu
SUMMARY:CFTP: the algorithm ERGM deserves\, but not the one it needs right now (Matt Moores\, University of Wollongong)
DESCRIPTION:The exchange algorithm enables Bayesian posterior inference for models with intractable likelihoods\, such as Ising\, Potts\, or exponential random graph models (ERGM). Crucially\, this algorithm relies on an auxiliary Markov chain to obtain an unbiased sample from the generative distribution of the model.             It was originally proposed to use coupling from the past (CFTP) for this purpose\, but this requires the Markov chain to be uniformly ergodic. In the case of the Ising model\, coupling time increases super-exponentially for parameter values larger than the critical point. Alternatives to CFTP\, such as perfect slice sampling or bounding chains for Swendsen-Wang\, have been proposed for the Ising model. However\, there are currently no suitable alternatives for ERGM\, which also features a phase transition that can cause problems with convergence. This talk will review some recent work on simulation algorithms for ERGM and discuss how this problem might be addressed.\n\nThis is joint work with Kerrie Mengersen and Chris Drovandi (QUT\, Australia)\, Antonietta Mira (USI Lugano\, Switzerland)\, and Alberto Caimo (Dublin Inst. Tech.\, Ireland).
URL:https://colleges.claremont.edu/ccms/event/applied-math-seminar-talk-title-tba/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181106T121500
DTEND;TZID=America/Los_Angeles:20181106T131000
DTSTAMP:20260404T010712
CREATED:20180911T214141Z
LAST-MODIFIED:20181102T201125Z
UID:537-1541506500-1541509800@colleges.claremont.edu
SUMMARY:Turning probability into polynomials (Mark Huber\, CMC)
DESCRIPTION:Moment generating functions (Laplace transforms) are a means for transforming probability problems into problems involving polynomials.  Here I will concentrate on the binomial distribution\, and use the mgf to link this distributions probabilities directly to the binomial theorem.  The mgf is also a key ingredient in Chernoff bounds\, which give upper bounds on the tail probabilities of binomial distributions (aka partial sums of the binomial theorem).  By employing the method of smoothing and tilting\, it is possible to attain bounds on the tails that go down faster than the traditional approximation heuristic that uses the Central Limit Theorem.
URL:https://colleges.claremont.edu/ccms/event/talk-by-mark-huber-cmc/
LOCATION:Millikan 2099\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Algebra / Number Theory / Combinatorics Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181107T161500
DTEND;TZID=America/Los_Angeles:20181107T171500
DTSTAMP:20260404T010712
CREATED:20180928T171215Z
LAST-MODIFIED:20181102T194937Z
UID:847-1541607300-1541610900@colleges.claremont.edu
SUMMARY:The Legacy of Rudolph Kalman (Andrew Stuart\, Caltech)
DESCRIPTION:Abstract: In 1960 Rudolph Kalman published what is arguably the first paper to develop a systematic\, principled approach to the use of data to improve the predictive capability of mathematical models. As our ability to gather data grows at an enormous rate\,  the importance of this work continues to grow too. The lecture will describe this paper\, and developments that have stemmed from it\, revolutionizing fields such space-craft control\, weather prediction\, oceanography\, oil recovery\, medical imaging and artificial intelligence. Some mathematical details will be also provided\, but limited to simple concepts such as optimization and iteration; the  talk is designed to be broadly accessible to anyone with an  interest in quantitative science.
URL:https://colleges.claremont.edu/ccms/event/andrew-stuart-caltech/
LOCATION:Argue Auditorium\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Colloquium
ORGANIZER;CN="Ali Nadim":MAILTO:ali.nadim@cgu.edu
GEO:34.0999157;-117.7142668
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Argue Auditorium Pomona College 610 N. College Ave. Claremont CA 91711 United States;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142668,34.0999157
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181108T161500
DTEND;TZID=America/Los_Angeles:20181108T171500
DTSTAMP:20260404T010712
CREATED:20181101T220906Z
LAST-MODIFIED:20181102T043346Z
UID:930-1541693700-1541697300@colleges.claremont.edu
SUMMARY:Crossing the Threshold: The Role of Demographic Stochasticity in the Evolution of Cooperation (Tom LoFaro\, Gustavus Adolphus College)
DESCRIPTION:When Charles Darwin began writing “On the Origin of Species” he knew that explaining cooperative behavior in the context of “survival of the fittest” was problematic.  In fact\, this apparent contradiction puzzled ecologists for many years after.  In this talk we will discuss a mathematical model of the evolution of cooperation developed by Doebeli\, Blarer\, and Ackermann that incorporates ideas from game theory into a standard population genetics model.  We will show that if the model is viewed deterministically then cooperative behavior cannot spread from rarity.  However\, if birth rates are stochastic then cooperative behavior might spread.  We will explore why this is so and describe conditions that increase the probability that cooperative behavior will become established.
URL:https://colleges.claremont.edu/ccms/event/crossing-the-threshold-the-role-of-demographic-stochasticity-in-the-evolution-of-cooperation-tom-lofaro-gustavus-adolphus-college/
LOCATION:Shanahan 3465\, Harvey Mudd College\, 301 Platt Blvd.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Applied Math Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20181112T161500
DTEND;TZID=America/Los_Angeles:20181112T171500
DTSTAMP:20260404T010712
CREATED:20180910T183619Z
LAST-MODIFIED:20181101T041237Z
UID:523-1542039300-1542042900@colleges.claremont.edu
SUMMARY:Digital sequences for frequency hopping CDMA systems (Lenny Fukshansky\, CMC)
DESCRIPTION:Frequency hopping is a method of transmitting signals by rapidly switching between many frequency channels\, following some sequence of frequencies known to the transmitter and the receiver. This technique is used in the CDMA (code division multiple access) systems\, and has many civilian and military applications. For successful transmission minimizing signal interference\, we want to use sets of digital frequency sequences with minimal Hamming cross-correlation\, which measures frequency overlaps with time shifts between two different sequences. We discuss a construction of a new family of one-coincidence sequences like this coming from some basic arithmetic of finite fields\, which have some nice properties. This is joint work with Adib Shaar\, and this talk is dedicated to his memory.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-prof-lenny-fukshansky/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Emmy Noether Room Millikan 1021 Pomona College 610 N. College Ave. Claremont California 91711;X-APPLE-RADIUS=500;X-TITLE=610 N. College Ave.:geo:-117.7142522,34.099908
END:VEVENT
END:VCALENDAR