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DTSTART;TZID=America/Los_Angeles:20190211T041500
DTEND;TZID=America/Los_Angeles:20190211T171500
DTSTAMP:20260404T150336
CREATED:20190129T225920Z
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SUMMARY:Community structure in networks: the effect of communities on a preferential attachment model and epidemic spreading (Emily Fischer\, Cornell)
DESCRIPTION:Online social networks and other networks of interest are known to exhibit community structure\, where a community is defined to be a highly interconnected group of nodes with possibly shared traits or features. However\, classic network models\, such as the preferential attachment model\, do not account for community structure. In this talk\, I will present the Community-Aware Preferential Attachment Model (CAPAM)\, which allows the user to specify community structure via edge probabilities. I will show that CAPAM retains desirable properties of the preferential attachment model\, namely a power-law degree distribution\, and further that the multivariate degree distribution is dependent upon the edge probabilities in an interesting way. I will show that community structure also plays a role in epidemic spreading processes. Under the SIS model\, the lifetime of a spreading process is constrained by the structure of the individual communities\, and the epidemic threshold is bounded closely around the threshold associated with the strongest community.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-emily-fisher/
LOCATION:Emmy Noether Room\, Millikan 1021\, Pomona College\, 610 N. College Ave.\, Claremont\, California\, 91711
CATEGORIES:Applied Math Seminar
GEO:34.099908;-117.7142522
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190212T121500
DTEND;TZID=America/Los_Angeles:20190212T131000
DTSTAMP:20260404T150336
CREATED:20181227T132155Z
LAST-MODIFIED:20190120T184543Z
UID:994-1549973700-1549977000@colleges.claremont.edu
SUMMARY:Subgraph statistics (Benny Sudakov\, ETH Zurich)
DESCRIPTION:Given integers $k\,l$  and a graph $G$\, how large can be the fraction of $k$-vertex subsets of $G$ which span exactly $l$ edges?  The systematic study of this very natural  question  was recently initiated by Alon\, Hefetz\, Krivelevich and Tyomkyn who also proposed several interesting conjectures on this topic. \n\nIn this talk we discuss a theorem which proves one of their conjectures and implies an asymptotic version of another.  We also make some first steps towards analogous question for hypergraphs. Our proofs involve some Ramsey-type arguments\, and a number of different probabilistic tools\, such as polynomial anticoncentration inequalities and  hypercontractivity. \nJoint work with M. Kwan and T. Tran.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-benny-sudakov-eth-zurich/
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:20190213T161500
DTEND;TZID=America/Los_Angeles:20190213T171500
DTSTAMP:20260404T150336
CREATED:20190110T154812Z
LAST-MODIFIED:20190213T234043Z
UID:1004-1550074500-1550078100@colleges.claremont.edu
SUMMARY:Cracking the Code: Predicting Properties of Material Fracture Networks using Machine Learning (Allon Percus\, CGU)
DESCRIPTION:Understanding how fluid flows through heterogeneous materials\, and how it can make these materials fail\, are among the hardest challenges in materials science.  Experiments and simulations show that flow through subsurface rock is mostly limited to a small subnetwork\, or backbone\, of fractures.  Identifying this backbone would allow for a large speedup in flow and transport simulations\, but the process of identifying it can itself be computationally intensive.  I will discuss a machine learning approach\, developed in a CGU Math Clinic project with Los Alamos National Laboratory\, that rapidly finds relevant subnetworks based on graph structure and training data from simulations.  Time permitting\, I will also describe a method that uses graph convolutional neural networks to predict\, with high accuracy\, how fractures grow in brittle materials.  This provides an automated approach for learning how the fractures can radiate through the material\, and ultimately cause it to fail.
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-allon-percus-cgu/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190218T160000
DTEND;TZID=America/Los_Angeles:20190218T170000
DTSTAMP:20260404T150336
CREATED:20190214T233621Z
LAST-MODIFIED:20190214T233621Z
UID:1213-1550505600-1550509200@colleges.claremont.edu
SUMMARY:Job Talk - Nicole Fider\, UC Irvine
DESCRIPTION:Candidate for Assistant Professor in Mathematics\, Scripps College \nA surprising application of mathematics:  How to name a color \nYour brain likes patterns and categories; by grouping related ideas together\, it can store and recall information quickly.  Real-life continuous domains (like time and taste) are inherently composed of infinitely many points of information\, which your brain segments into finitely many categories for convenience (such as morning/afternoon/evening/night\, or sweet/sour/salty/bitter).  This phenomenon is well-documented and is a topic of interest in the behavioral\, cognitive\, and social sciences. \nThe set of colors is another example of a continuous domain\, which in English is segmented into categories called “blue\,” “red\,” “green\,” etc.  In this talk\, I discuss how we apply mathematics —including calculus and linear algebra—to real-world data to study the occurrence of different categorizations schemes of the color space.  I then outline several related open projects. \n  \nMonday\, February 18 \n4:00-4:50pm \nBalch 218 \nScripps College \n  \nFMI contact: ctowse@scrippscollege.edu \n 
URL:https://colleges.claremont.edu/ccms/event/job-talk-nicole-fider-uc-irvine/
LOCATION:CA
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190219T121500
DTEND;TZID=America/Los_Angeles:20190219T131000
DTSTAMP:20260404T150336
CREATED:20190123T071222Z
LAST-MODIFIED:20190203T022044Z
UID:1141-1550578500-1550581800@colleges.claremont.edu
SUMMARY:Knowledge\, strategies\, and know-how (Pavel Naumov\, CMC)
DESCRIPTION:An agent comes to a fork in a road. There is a sign that says that one of the two roads leads to prosperity and another to death. The agent must take the fork\, but she does not know which road leads where. Does the agent have a strategy to get to prosperity? On one hand\, since one of the roads leads to prosperity\, such a strategy clearly exists. On the other\, the agent does not know what the strategy is. \nIf a coalition of agents has a strategy\, it knows that it has a strategy\, and it also knows what this strategy is\, then we say that the coalition has a know-how strategy. In this talk I will discuss several of my recent papers on modal logics that describe the interplay between coalition knowledge\, strategies\, and know-how strategies.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-pavel-naumov-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:20190220T161500
DTEND;TZID=America/Los_Angeles:20190220T171500
DTSTAMP:20260404T150336
CREATED:20190110T154953Z
LAST-MODIFIED:20190214T061909Z
UID:1006-1550679300-1550682900@colleges.claremont.edu
SUMMARY:Personal Perspectives on m-ary Partitions (James Sellers\, Penn State)
DESCRIPTION:Abstract:  A great deal of my research journey has involved the study of m-ary partitions.  These are integer partitions wherein each part must be a power of a fixed integer m > 1.  Beginning in the late 1960s\, numerous mathematicians (including Churchhouse\, Andrews\, Gupta\, and Rodseth) studied divisibility properties of m-ary partitions.  In this talk\, I will discuss work I completed with Rodseth which generalizes the results of Andrews and Gupta from the 1970s.  Time permitting\, I will then discuss several problems related to m-ary partitions\, including my work with Neil Sloane on non-squashing stacks of boxes\, an application of m-ary partitions to objects known as “unique path partitions” (which are motivated from representation theory of the symmetric group)\, as well as very recent work with George Andrews and Aviezri Fraenkel on the characterization of the number of m-ary partitions of n modulo m.  Throughout the talk\, I will attempt to highlight various aspects of the research related to symbolic computation.  The talk will be self-contained and geared for a general mathematical audience.
URL:https://colleges.claremont.edu/ccms/event/personal-perspectives-on-m-ary-partitions-james-sellers-penn-state/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190221T120000
DTEND;TZID=America/Los_Angeles:20190221T133000
DTSTAMP:20260404T150336
CREATED:20190123T234443Z
LAST-MODIFIED:20190123T234443Z
UID:1163-1550750400-1550755800@colleges.claremont.edu
SUMMARY:A nonorientable version of the Milnor Conjecture (Cornelia A. Van Cott\, USF)
DESCRIPTION:In 1968\, Milnor famously conjectured that the smooth 4-genus of the torus knot T(p\,q) is given by (p-1)(q-1)/2. This conjecture was first verified by Kronheimer and Mrowka in 1993 and has received several other proofs since then. In this talk\, we discuss a nonorientable analogue of this conjecture\, first formulated by Josh Batson. We prove the conjecture for infinite families of of torus knots\, using tools from knot Floer homology. We also connect the problem to the world of continued fractions\, which gives an alternative perspective on the problem. This is joint work with Stanislav Jabuka.
URL:https://colleges.claremont.edu/ccms/event/a-nonorientable-version-of-the-milnor-conjecture-cornelia-a-van-cott-usf/
LOCATION:Roberts North 104\, CMC\, 320 E. 9th St.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Topology Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190222T160000
DTEND;TZID=America/Los_Angeles:20190222T173000
DTSTAMP:20260404T150336
CREATED:20190219T055204Z
LAST-MODIFIED:20190513T052208Z
UID:1221-1550851200-1550856600@colleges.claremont.edu
SUMMARY:Uniform Convergence: A One-Woman Play
DESCRIPTION:Uniform Convergence is a one-woman play\, written and performed by mathematics graduate student Corrine Yap. It juxtaposes the stories of two women trying to find their place in a white male-dominated academic world. The first is of historical Russian mathematician Sofia Kovalevskaya\, who was lauded as a pioneer for women in science but only after years of struggle for recognition. Her life’s journey is told through music and movement\, in both Russian and English. The second is of a fictional Asian-American woman\, known only as “Professor”\, trying to cope with the prejudice she faces in the present. As she teaches an introductory real analysis class\, she uses mathematical concepts to draw parallels to the race and gender conflicts she encounters in society today. \nSee https://www.corrineyap.com/uniformconvergence/ for more information about the play.
URL:https://colleges.claremont.edu/ccms/event/uniform-convergence-a-one-woman-play/
LOCATION:Millikan 1051\, Pomona College\, 610 N. College Ave.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Special Event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190225T041500
DTEND;TZID=America/Los_Angeles:20190225T171500
DTSTAMP:20260404T150336
CREATED:20190129T230104Z
LAST-MODIFIED:20190221T190447Z
UID:1186-1551068100-1551114900@colleges.claremont.edu
SUMMARY:Applied Math Seminar: Measurement Error Modeling using Empirical Phase Functions (Prof. Cornelis Potgieter\, Southern Methodist University)
DESCRIPTION:Measurement error\, formally defined as the difference between the measured value and the true value of a quantity of interest\, is ubiquitous. When a doctor takes your blood pressure\, the instrumentation may not be properly calibrated and the reading is subject to error. When completing an online Harry Potter Sorting Hat quiz\, you may accidentally click the wrong option for a specific question and find yourself in House Slytherin!. The effect of measurement error is sometimes insignificant\, but there are instances where ignored measurement error can be rather consequential. You definitely do not want your doctor to put you on a long-term medication for managing high BP due to an erroneous measurement! \nIn this talk\, I will discuss two problems frequently encountered when measurement error is present in sampled data. The first of these is known as density deconvolution\, which involves estimating the density function of the population of interest. When measurement error is present\, a density function estimated from the sample will have inflated variance\, and interesting population features may be obscured. The second problem relates to regression modeling when the predictor variable is subject to measurement error. Here\, when using the contaminated data to estimate the regression model\, parameter estimates will be biased unless measurement error is properly adjusted for. I will show how the empirical phase functions\, a transformation of the sample data to the complex plane\, can be used to find solutions to both of these problems. \nOh\, and don’t worry too much about your doctor unnecessarily prescribing blood pressure medication. She is well aware that measurement error exists\, and will re-take the measurement\, and also perform other tests before making a diagnosis. Being sorted into House Slytherin though\, there you are on your own…
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-prof-cornelis-potgieter/
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:20190225T160000
DTEND;TZID=America/Los_Angeles:20190225T170000
DTSTAMP:20260404T150336
CREATED:20190222T005542Z
LAST-MODIFIED:20190222T005542Z
UID:1233-1551110400-1551114000@colleges.claremont.edu
SUMMARY:Job Talk - Scripps Candidate for Assistant Professor in Mathematics
DESCRIPTION:Job Talk: \nChristina Edholm\, University of Tennessee \n“Epidemiological models examining two susceptible classes” \n  \nMonday\, February 25 \n4:00-4:50pm \nBalch 218\, Scripps College
URL:https://colleges.claremont.edu/ccms/event/job-talk-scripps-candidate-for-assistant-professor-in-mathematics/
LOCATION:CA
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190226T121500
DTEND;TZID=America/Los_Angeles:20190226T131000
DTSTAMP:20260404T150336
CREATED:20190112T015039Z
LAST-MODIFIED:20190218T190711Z
UID:1047-1551183300-1551186600@colleges.claremont.edu
SUMMARY:When is the product of Siegel eigenforms an eigenform? (Jim Brown\, Occidental College)
DESCRIPTION:Modular forms are ubiquitous in modern number theory.  For instance\, showing that elliptic curves are secretly modular forms was the key to the proof of Fermat’s Last Theorem.  In addition to number theory\, modular forms show up in diverse areas such as coding theory and particle physics.  Roughly speaking\, a modular form is a complex-valued function defined on the complex upper half-plane that satisfies a large number of symmetries.  A modular form has two invariants: weight and level.  If one fixes a weight and level\, the collection of modular forms of that weight and level form a finite-dimensional complex vector space.  One has a collection of operators on these spaces referred to as Hecke operators.  A natural question is if one takes two eigenforms of these operators and multiplies them\, when is the product still an eigenform?  It was shown in independent work by Duke and Ghate that there is a finite list of pairs of eigenforms whose product is again an eigenform.  In this talk we will report on the case when one replaces modular forms with the more general case of Siegel modular forms.  This is work that was partially conducted during an REU in summer 2018.  No prior familiarity with modular forms is assumed.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-jim-brown-occidental-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:20190227T161500
DTEND;TZID=America/Los_Angeles:20190227T171500
DTSTAMP:20260404T150336
CREATED:20190204T170256Z
LAST-MODIFIED:20190204T170256Z
UID:1192-1551284100-1551287700@colleges.claremont.edu
SUMMARY:Pull Out All The Stops: Textual Analysis via Punctuation Sequences (Mason Porter\, UCLA)
DESCRIPTION:Abstract: Whether enjoying the lucid prose of a favorite author or\nslogging through some other writer’s cumbersome\, heavy-set prattle (full\nof parentheses\, em-dashes\, compound adjectives\, and Oxford commas)\,\nreaders will notice stylistic signatures not only in word choice and\ngrammar\, but also in punctuation itself. Indeed\, visual sequences of\npunctuation from different authors produce marvelously different (and\nvisually striking) sequences. Punctuation is a largely overlooked\nstylistic feature in “stylometry”\, the quantitative analysis of written\ntext. In this paper\, we examine punctuation sequences in a corpus of\nliterary documents and ask the following questions: Are the properties of\nsuch sequences a distinctive feature of different authors? Is it possible\nto distinguish literary genres based on their punctuation sequences? Do\nthe punctuation styles of authors evolve over time? Are we on to something\ninteresting in trying to do stylometry without words\, or are we full of\nsound and fury (signifying nothing)? \nFor more information\, see our recent preprint (joint work with Alexandra\nDarmon\, Marya Bazzi\, and Sam Howison):\nhttps://osf.io/preprints/socarxiv/2rzsg
URL:https://colleges.claremont.edu/ccms/event/pull-out-all-the-stops-textual-analysis-via-punctuation-sequences-mason-porter-ucla/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190228T120000
DTEND;TZID=America/Los_Angeles:20190228T133000
DTSTAMP:20260404T150336
CREATED:20190127T185703Z
LAST-MODIFIED:20190220T150331Z
UID:1171-1551355200-1551360600@colleges.claremont.edu
SUMMARY:Applying Quantum Representations of Mapping Class Groups (Wade Bloomquist\, UCSB)
DESCRIPTION:One foundational pillar of low dimensional topology is the connection between link invariants and 3-manifold invariants.  One generalization of this has been given by Reshetikhin and Turaev to a surgery theory for colored ribbon graphs.  Then to complete the analogy rather than 3-manifold invariants we now have a 2+1 dimensional topology quantum field theory (TQFT).  For this talk we will only be focusing on one corner of a TQFT\, in particular the representations of mapping class groups which are afforded (called quantum representations).  We will first go through a brief construction of these representations\, focusing on how colored ribbon graphs give rise to a basis.  Then we will dive into some applications of these representations both in recovering classical topology and in a proposal for a topological quantum computing protocol.  A strong effort will be made to keep things relatively self contained with as many pictures as possible.
URL:https://colleges.claremont.edu/ccms/event/applying-quantum-representations-of-mapping-class-groups-wade-bloomquist-ucsb/
LOCATION:Roberts North 104\, CMC\, 320 E. 9th St.\, Claremont\, CA\, 91711\, United States
CATEGORIES:Topology Seminar
ORGANIZER;CN="Helen Wong":MAILTO:hwong@cmc.edu
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190228T160000
DTEND;TZID=America/Los_Angeles:20190228T170000
DTSTAMP:20260404T150336
CREATED:20190227T213241Z
LAST-MODIFIED:20190227T213241Z
UID:1242-1551369600-1551373200@colleges.claremont.edu
SUMMARY:Job Talk - Howard Levinson - Candidate for Assistant Professor in Mathematics
DESCRIPTION:Candidate for Assistant Professor in Mathematics \nHoward Levinson\, University of Michigan \nSeeing Clearly Through a Microscope \nThe goal of microscope imaging is to obtain high-resolution images of cells.  However\, due to the underlying physics involved\, the resulting images are often blurred.  In this talk\, I will develop the mathematical framework to describe this blurring\, which leads to a natural algorithm for removing it.  At the end of talk\, I will introduce some new mathematical ideas for modifying this algorithm to further increase the resolution. \nThursday\, February 28\, 4-4:50pm \nBalch 218\, Scripps College \nFMI\, ctowse@scrippscollege.edu \n  \n 
URL:https://colleges.claremont.edu/ccms/event/job-talk-howard-levinson-candidate-for-assistant-professor-in-mathematics/
LOCATION:CA
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190228T161500
DTEND;TZID=America/Los_Angeles:20190228T171500
DTSTAMP:20260404T150336
CREATED:20190121T190809Z
LAST-MODIFIED:20190126T004351Z
UID:1117-1551370500-1551374100@colleges.claremont.edu
SUMMARY:Applied Math Seminar: Eulerian Approaches based on the Level Set Method for Visualizing Continuous Dynamical Systems (Shingyu Leung\, Department of Mathematics\, HKUST)
DESCRIPTION:One very important concept in understanding a dynamical system is coherent structure. Such structure segments the domain into different regions with similar behavior according to a quantity. When we try to partition space-time into regions according to a Lagrangian quantity advected along with passive tracers\, such class of coherent structure is called the Lagrangian coherent structures (LCSs). Among many\, a simple definition of an LCS uses the finite-time Lyapunov exponent (FTLE). It measures the rate of separation between adjacent particles over a finite time interval with an infinitesimal perturbation in the initial location. In the talk\, we first present various Eulerian-based numerical methods which efficiently compute the flow maps of any continuous dynamical system and\, therefore\, the corresponding FTLE. Based on these techniques we developed\, we will also propose some other useful numerical tools for extracting important structures hidden in the system.
URL:https://colleges.claremont.edu/ccms/event/applied-math-seminar-given-by-shingyu-leung-department-of-mathematics-hkust/
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:20190302T100000
DTEND;TZID=America/Los_Angeles:20190302T120000
DTSTAMP:20260404T150336
CREATED:20190115T200155Z
LAST-MODIFIED:20190115T200155Z
UID:1107-1551520800-1551528000@colleges.claremont.edu
SUMMARY:GEMS Workshop: Graph Theory\, Part II with Professor Michael Orrison\, from Harvey Mudd College
DESCRIPTION:TOPIC: Graph Theory\, Part II \nOn the surface\, graphs seem to be some of the simplest objects you might encounter in mathematics. After all\, they are made up of just two kinds of parts\, vertices and edges\, and those parts fit together in simple ways. But appearances can be deceiving! In this series of two workshops\, we’ll explore several surprising facts about graphs. Along the way\, we’ll see how graphs arise in a variety of settings\, and how they give rise to many challenging but worthwhile problems. \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 \nSPRING 2019 DATES: \nFebruary 2\, 2019 \nMarch 2\, 2019 \nApril 13\, 2019 \nREGISTRATION: \nTo register for our next event on March 2\, please click on the following link: \nhttps://tinyurl.com/GEMS2019Spring2 \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-graph-theory-part-ii-with-professor-michael-orrison-from-harvey-mudd-college/
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:20190304T161500
DTEND;TZID=America/Los_Angeles:20190304T171500
DTSTAMP:20260404T150337
CREATED:20190114T165544Z
LAST-MODIFIED:20190225T075945Z
UID:1088-1551716100-1551719700@colleges.claremont.edu
SUMMARY:Applied Math Seminar: Fluid mechanics at the microscale (Prof. Amy Buchmann\, University of San Diego)
DESCRIPTION:I will present mathematical and computational methods used to model interactions between a viscous fluid and elastic structures in biological processes. For example\, microfluidic devices carry very small volumes of liquid through channels and may be used to gain insight into many biological applications including drug delivery and development\, but mixing and pumping at this scale is difficult. Experimental work suggests that the flagella of bacteria may be used as motors in microfluidic devices\, and mathematical modeling can be used to further investigate this idea. Cilia self-organize forming a metachronal wave that propels the surrounding fluid. How this organization occurs is not well understood. Mathematical models can be used to study the role of hydrodynamic interactions in self-organization.
URL:https://colleges.claremont.edu/ccms/event/applied-math-seminar-given-by-prof-amy-buchmann-ucsd/
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:20190305T121500
DTEND;TZID=America/Los_Angeles:20190305T131000
DTSTAMP:20260404T150337
CREATED:20190123T071437Z
LAST-MODIFIED:20190227T165818Z
UID:1143-1551788100-1551791400@colleges.claremont.edu
SUMMARY:Nonvanishing minors and uncertainty principles for Fourier analysis over  finite fields (Daniel Katz\, CSUN)
DESCRIPTION:Chebotarev’s theorem on roots of unity says that every minor of a discrete Fourier transform matrix of prime order is nonzero. We present a generalization of this result that includes analogues for discrete cosine and discrete sine transform matrices as special cases.  This leads to a generalization of the Biro-Meshulam-Tao uncertainty principle to functions with symmetries that arise from certain group actions\, with some of the simplest examples being even and odd functions.  This new uncertainty principle gives a bound that is sharp and\, for some classes of functions\, stronger than that of Biro-Meshulam-Tao.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-daniel-katz-csun/
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:20190306T161500
DTEND;TZID=America/Los_Angeles:20190306T171500
DTSTAMP:20260404T150337
CREATED:20190213T181914Z
LAST-MODIFIED:20190213T181914Z
UID:1203-1551888900-1551892500@colleges.claremont.edu
SUMMARY:Accidental Mathematics (Matt Stamps\, Yale-NUs College)
DESCRIPTION:Abstract:  Growing up\, I always loved learning about world-changing scientific breakthroughs that were discovered by accident.  Penicillin\, artificial sweeteners\, X-rays\, and synthetic dyes are just a few of the discoveries that were stumbled upon by scientists who had other goals in mind.  More recently\, I have come to wonder why anecdotes about accidental discoveries in mathematics are not as commonplace.  Is it a fundamental difference in they way mathematicians and natural scientists view their work?  Are such stories too contrary to the popular perception that success in mathematics is reserved for the genius of a select few?  Whatever the reason\, I argue that mathematics happens accidentally all the time.  In this talk\, I will describe two accidental discoveries from my own work involving Penrose tilings\, circle packings\, chordal graphs\, lecture hall partitions\, lattice polytopes\, and polynomial rings.
URL:https://colleges.claremont.edu/ccms/event/accidental-mathematics-matt-stamps-yale-nus-college/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190307T120000
DTEND;TZID=America/Los_Angeles:20190307T133000
DTSTAMP:20260404T150337
CREATED:20190205T180911Z
LAST-MODIFIED:20190205T180911Z
UID:1194-1551960000-1551965400@colleges.claremont.edu
SUMMARY:Non-existence of epimorphisms between certain genus two handlebody-knot groups (Ryo Nikkuni\, Tokyo Woman's Christian University)
DESCRIPTION:For two genus $g$ handlebody-knots $H_{1}$ and $H_{2}$\, we denote $H_{1} \geq H_{2}$ if there exists an epimorphism from the fundamental group of the handlebody-knot complement of $H_{1}$ onto the one of $H_{2}$. In the case of $g = 1$\, this order is a partial order on the set of prime knots and has been determined up to $11$ crossings by Kitano-Suzuki and Horie-Kitano-Matsumoto-Suzuki. In this talk\, we consider the case of $g = 2$ and exhibit a lot of ordered pairs of irreducible genus $2$ handlebody-knots in the Ishii-Kishimoto-Moriuchi-Suzuki table up to $6$ crossings\, each of which does not admit this order. This is a joint work with Y. Ozawa and M. Suzuki.
URL:https://colleges.claremont.edu/ccms/event/non-existence-of-epimorphisms-between-certain-genus-two-handlebody-knot-groups-ryo-nikkuni-tokyo-womans-christian-university/
LOCATION:CA
CATEGORIES:Topology Seminar
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190311T161500
DTEND;TZID=America/Los_Angeles:20190311T171500
DTSTAMP:20260404T150337
CREATED:20190128T193212Z
LAST-MODIFIED:20190128T213406Z
UID:1177-1552320900-1552324500@colleges.claremont.edu
SUMMARY:Applied Math Talk: Cluster analysis on covariance stationary ergodic processes and locally asymptotically self-similar processes (Nan Rao\, CGU)
DESCRIPTION:We study the problems of clustering covariance stationary ergodic processes and locally asymptotically self-similar stochastic processes\, when the true number of clusters is priorly known. A new covariance-based dissimilarity measure is introduced\, from which efficient consistent clustering algorithms are obtained. As examples of application\, clustering  fractional Brownian motions and clustering multifractional Brownian motions are respectively performed to illustrate the asymptotic consistency of the proposed algorithms.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-nan-rao-cgu/
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:20190312T121500
DTEND;TZID=America/Los_Angeles:20190312T131000
DTSTAMP:20260404T150337
CREATED:20181221T200102Z
LAST-MODIFIED:20181221T232930Z
UID:991-1552392900-1552396200@colleges.claremont.edu
SUMMARY:Indiana Pols Forced to Eat Humble Pi: The Curious History of an Irrational Number (Edray Goins\, Pomona)
DESCRIPTION:In 1897\, Indiana physician Edwin J. Goodwin believed he had discovered a way to square the circle\, and proposed a bill to Indiana Representative Taylor I. Record which would secure Indiana’s the claim to fame for his discovery.  About the time the debate about the bill concluded\, Purdue University professor Clarence A. Waldo serendipitously came across the claimed discovery\, and pointed out its mathematical impossibility to the lawmakers.  It had only be shown just 15 years before\, by the German mathematician Ferdinand von Lindemann\, that it was impossible to square the circle because $\pi$ is an irrational number.  This fodder became ignominiously known as the “Indiana Pi Bill” as Goodwin’s result would force $\pi = 3.2$.\n\nIn this talk\, we review this humorous history of the irrationality of $\pi$.  We introduce a method to compute its digits\, present Lindemann’s proof of its irrationality (following a simplification by Miklos Laczkovich)\, discuss the relationship with the Hermite-Lindemann-Weierstrass theorem\, and explain how Edwin J. Goodwin came to his erroneous conclusion in the first place.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-edray-goins-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:20190313T161500
DTEND;TZID=America/Los_Angeles:20190313T171500
DTSTAMP:20260404T150337
CREATED:20190301T182312Z
LAST-MODIFIED:20190308T165538Z
UID:1248-1552493700-1552497300@colleges.claremont.edu
SUMMARY:Some Unexpected Mathematics Arising From Research at NIST ( Hunt\, NIST)
DESCRIPTION:A lot of the mathematics done at NIST supports the research on and measurement of advanced materials and technology. In this rather applied context. surprising mathematics makes an appearance. We present a few examples.
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-hunt-nist/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190326T121500
DTEND;TZID=America/Los_Angeles:20190326T131000
DTSTAMP:20260404T150337
CREATED:20190224T030836Z
LAST-MODIFIED:20190304T190113Z
UID:1236-1553602500-1553605800@colleges.claremont.edu
SUMMARY:Refinements of metrics (Wai Yan Pong\, CSUDH)
DESCRIPTION:I will talk about a few graph-theoretic metrics then introduce the concept of refinements on a class of functions that include all metrics. As a case study\, we will construct various refinements on the shortest-path distance. Consequently\, we obtain a few “better” versions of the Erdos number. In the course of our investigation\, we realized various construction of metrics can be unified under a rather natural concept that we called monotonic monoid norm. This is a joint work with Kayla Lock and Alex Wittmond.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-wai-yan-pong-csudh/
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:20190327T161500
DTEND;TZID=America/Los_Angeles:20190327T171500
DTSTAMP:20260404T150337
CREATED:20190301T180840Z
LAST-MODIFIED:20190322T150849Z
UID:1246-1553703300-1553706900@colleges.claremont.edu
SUMMARY:Reasoning about Liability of Intelligent Agents ( Naumov\, CMC)
DESCRIPTION:Abstract: As intelligent agents assume larger role in our daily lives\, reasoning by humans about liability of such agents as well as reasoning by the intelligent agents themselves about liability becomes more important.  The existing laws\, written with humans in mind\, will eventually need to be re-interpreted in terms of their applicability in a hybrid environment that consists of humans and intelligent agents.  In some cases\, new laws will need to be written to redefine liability in the context involving intelligent agents. As a first step in this direction\, we need to have a formal definition of liability that can be applied to intelligent agents and logical rules that the machines can use to reason about their own and human liability. In this talk I will discuss several of my recent works on formal logical systems for reasoning about liability.
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-naumov-cmc/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190401T161500
DTEND;TZID=America/Los_Angeles:20190401T171500
DTSTAMP:20260404T150337
CREATED:20190307T230118Z
LAST-MODIFIED:20190312T223842Z
UID:1265-1554135300-1554138900@colleges.claremont.edu
SUMMARY:Applied Math Talk: Repurposing FDA-approved drugs as host-oriented therapies against infectious diseases (Prof. Mikhail Martchenko\, KGI)
DESCRIPTION:The traditional method of treating most human diseases is to direct a therapy against targets in the host patient\, whereas conventional therapies against infectious diseases are directed against the pathogen. Unfortunately\, the efficacy of pathogen-oriented therapies and their ability to combat emerging threats such as genetically engineered and non-traditional pathogens and toxins have been limited by the occurrence of mutations that render pathogen targets resistant to countermeasures. Our work shows that host proteins that are exploited by pathogens (Host Proteins Exploited by Pathogens; HPEPs) contribute to the severity of exposure to pathogenic agents. We find that pathogens recruit HPEPs to bind to\, enter\, reproduce in\, exit from\, and kill host cells. Thus\, HPEPs are potential targets for therapies. This presentation will discuss examples of our drug discovery efforts to identify host-oriented therapies.
URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-repurposing-fda-approved-drugs-as-host-oriented-therapies-against-infectious-diseases-prof-mikhail-martchenko-kgi/
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:20190402T121500
DTEND;TZID=America/Los_Angeles:20190402T131000
DTSTAMP:20260404T150337
CREATED:20190206T180617Z
LAST-MODIFIED:20190326T042503Z
UID:1196-1554207300-1554210600@colleges.claremont.edu
SUMMARY:Fibonacci and Lucas analogues of binomial coefficients and what they count (Curtis Bennett\, CSULB)
DESCRIPTION:A Fibonomial is what is obtained when you replace each term of the binomial coefficients $ {n \choose k}$ by the corresponding Fibonacci number.  For example\, the Fibonomial \n$${ 6\brace 3 } = \frac{F_6 \cdot F_5 \cdot \dots \cdot F_1}{(F_3\cdot F_2 \cdot F_1)(F_3\cdot F_2 \cdot F_1)} = \frac{8\cdot5\cdot3\cdot2\cdot1\cdot1}{(2\cdot1\cdot1)(2\cdot1\cdot1)} = 60$$ \nsince the first six Fibonacci numbers are 1\, 1\, 2\, 2\, 5\, and 8.  Curiously the Fibonomials are always integers\, raising the combinatorial question:  what do they count?  In this talk we introduce and provide a little history of the Fibonomials.  We then provide a simple object the Fibonomials enumerate.  We will use this new object to prove various Fibonomial analogues of standard identities on binomial coefficients and discuss further generalizations including the Lucanomials.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-curtis-bennett-csulb/
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:20190403T161500
DTEND;TZID=America/Los_Angeles:20190403T171500
DTSTAMP:20260404T150337
CREATED:20190301T182423Z
LAST-MODIFIED:20190301T213823Z
UID:1250-1554308100-1554311700@colleges.claremont.edu
SUMMARY:On the interplay of functional analysis and operator theory (Puig de Dios\, UCR)
DESCRIPTION:Abstract: We overview some basic and striking facts concerning the theory of hypercyclic operators (considered to be born in 1982): \n\n1. Hypercyclicity is a purely infinite-dimensional phenomenon: no finite dimensional space supports any hypercyclic operator;\n\n2. It is not easy at all to determine whether a linear operator is hypercyclic. However\, the set of hypercyclic operators is dense for the Strong Operator Topology in the algebra of linear and bounded operators;\n\n\n3. Hypercyclicity is far from being an exotic phenomenon: any infinite-dimensional separable Frechet space supports a hypercyclic operator.
URL:https://colleges.claremont.edu/ccms/event/ccms-colloquium-puig-de-dios-ucr/
LOCATION:Shanahan B460\, Harvey Mudd College\, 301 Platt Blvd.\, 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:20190408T161500
DTEND;TZID=America/Los_Angeles:20190408T171500
DTSTAMP:20260404T150337
CREATED:20190311T221343Z
LAST-MODIFIED:20190401T035013Z
UID:1271-1554740100-1554743700@colleges.claremont.edu
SUMMARY:Models of Biological Tissue Electrostatics and Molecular Transport (Jim Sterling\, KGI)
DESCRIPTION:In this presentation\, some fundamentals of electrostatics in biology will be discussed with focus on the fact that most biological macromolecules including nucleic acids\, carbohydrates\, and proteins are negatively-charged. Electroneutrality requires cations to move toward the macromolecules where they both screen and bind to the negatively-charged groups. An important class of mathematical models of species-flux and electrostatics are known as the Poisson-Nernst-Planck\, or PNP equations. These are partial differential equations describing some important biophysical consequences.
URL:https://colleges.claremont.edu/ccms/event/models-of-biological-tissue-electrostatics-and-molecular-transport-jim-sterling-kgi/
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:20190409T121500
DTEND;TZID=America/Los_Angeles:20190409T131000
DTSTAMP:20260404T150337
CREATED:20190123T071619Z
LAST-MODIFIED:20190402T034536Z
UID:1145-1554812100-1554815400@colleges.claremont.edu
SUMMARY:Matrix multiplication: the hunt for $\omega$ (Mark Huber\, CMC)
DESCRIPTION:For centuries finding the determinant of a matrix was considered to be something that took $\Theta(n^3)$ steps.  Only in 1969 did Strassen discover that there was a faster method.  In this talk I’ll discuss his finding\, how the Master Theorem for divide-and-conquer plays into it\, and how it was shown that finding determinants\, inverting matrices\, and Gaussian elimination are the same time complexity as to matrix multiplication.
URL:https://colleges.claremont.edu/ccms/event/antc-talk-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
END:VCALENDAR