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DTSTART;TZID=America/Los_Angeles:20190225T041500
DTEND;TZID=America/Los_Angeles:20190225T171500
DTSTAMP:20260404T043555
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
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190225T160000
DTEND;TZID=America/Los_Angeles:20190225T170000
DTSTAMP:20260404T043555
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:20260404T043555
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:20260404T043555
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:20260404T043555
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:20260404T043555
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:20260404T043555
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
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Los_Angeles:20190302T100000
DTEND;TZID=America/Los_Angeles:20190302T120000
DTSTAMP:20260404T043555
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
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