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-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:20190310T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20191103T090000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20200308T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20201101T090000 END:STANDARD BEGIN:DAYLIGHT TZOFFSETFROM:-0800 TZOFFSETTO:-0700 TZNAME:PDT DTSTART:20210314T100000 END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0700 TZOFFSETTO:-0800 TZNAME:PST DTSTART:20211107T090000 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201005T150000 DTEND;TZID=America/Los_Angeles:20201005T160000 DTSTAMP:20260510T054310 CREATED:20200813T015423Z LAST-MODIFIED:20200813T015844Z UID:1941-1601910000-1601913600@colleges.claremont.edu SUMMARY:Applied Math Talk: Multiwavelet discontinuous Galerkin methods and automated parameters for troubled cell indication given by Professor Jennifer Ryan (Colorado School of Mines) DESCRIPTION:This talk focuses on using a multiwavelet representation of the discontinuous Galerkin (DG) approximation for trouble cell indication. The multiwavelet representation is related to the jumps in the (derivatives of) the DG approximation. We then compare this indicator with other\, more established indicators as well as machine learning approaches and demonstrate that it is possible to choose the parameters for troubled cell indicators automatically and appropriately. URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-multiwavelet-discontinuous-galerkin-methods-and-automated-parameters-for-troubled-cell-indication-given-by-professor-jennifer-ryan-colorado-school-of-mines/ LOCATION:CA CATEGORIES:Applied Math Seminar END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201007T161500 DTEND;TZID=America/Los_Angeles:20201007T171500 DTSTAMP:20260510T054310 CREATED:20200820T205249Z LAST-MODIFIED:20200913T173147Z UID:1990-1602087300-1602090900@colleges.claremont.edu SUMMARY:Prof. Satyan Devadoss DESCRIPTION:Title: Unsolved Mathematics at Burning Man \nAbstract: Rising 12 feet tall with an 18-foot wingspan\, a 2-ton unfolding dodecahedron comes to life at Burning Man\, the world’s most influential large-scale sculpture showcase. The artwork is illuminated by 16\,000 LEDs\, requiring 6500 build-hours and $50\,000 in donated funds\, with an interior large enough to hold 15 people and fully-lined with massive mirrors. \nThis sculpture alludes to a tantalizing open problem in mathematics on unfolding polyhedra\, tracing its origins back 500 years to the Renaissance master Albrecht Dürer. We discuss the state-of-the-art for this geometric puzzle\, consider solutions to some higher-dimensional unfolding analogs\, and place this example in a larger quest to bring the edge of mathematical knowledge to the general public. \nProf. Devadoss is the Fletcher Jones Chair of Applied Mathematics and Professor of Computer Science at University of San Diego. URL:https://colleges.claremont.edu/ccms/event/prof-satyan-devadoss/ LOCATION:Zoom CATEGORIES:Colloquium ORGANIZER;CN="Helen Wong":MAILTO:hwong@cmc.edu END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201012T150000 DTEND;TZID=America/Los_Angeles:20201012T160000 DTSTAMP:20260510T054310 CREATED:20200128T064845Z LAST-MODIFIED:20200831T232357Z UID:1819-1602514800-1602518400@colleges.claremont.edu SUMMARY:Applied Math Talk: Bounded-confidence models for opinion dynamics on online social networks given by Professor Heather Zinn Brooks (HMC) DESCRIPTION:Online social media networks have become extremely influential sources of news and information. Given the large audience and the ease of sharing content online\, the content that spreads on online social networks can have important consequences on public opinion\, policy\, and voting. To better understand the online content spread\, mathematical modeling of opinion dynamics is becoming an increasingly popular field of study. In this talk\, I will introduce you to a special class of models of opinion dynamics on networks called bounded-confidence models. I will then discuss some of the applications and theory that my collaborators and I have been developing with these models\, including the impact of media\, opinion dissemination\, mean-field dynamics\, and extensions to hypergraphs and multilayer networks. This talk will also include some unsolved questions for future work. URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-heather-zinn-ucla/ LOCATION:CA CATEGORIES:Applied Math Seminar END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201014T161500 DTEND;TZID=America/Los_Angeles:20201014T173000 DTSTAMP:20260510T054310 CREATED:20200929T143403Z LAST-MODIFIED:20200929T143505Z UID:2062-1602692100-1602696600@colleges.claremont.edu SUMMARY:Prof. Grigoriy Blekherman DESCRIPTION:Title: Nonnegative Polynomials and Sums of Squares \nAbstract: Is x4-2x3+7x2-2x+1 nonnegative for any value of x? One way of showing that this holds is by writing x4-2x3+7x2-2x+1=1/2(x2-3x+1)2+1/2(x2+x+1)2. Studying the relationship between non-negativity and sums of squares has a distinguished history in mathematics starting with work of David Hilbert and Hilbert’s 17th problem. I will discuss the history and some modern applications of sums of squares in optimization and combinatorics. \nProf. Blekherman is on the Mathematics faculty at Georgia Tech; he also is an advocate for Georgia Tech’s internationally renown Algorithms\, Combinatorics and Optimization (ACO) graduate program. URL:https://colleges.claremont.edu/ccms/event/prof-grigoriy-blekherman/ LOCATION:CA CATEGORIES:Colloquium END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201021T161500 DTEND;TZID=America/Los_Angeles:20201021T173000 DTSTAMP:20260510T054310 CREATED:20200926T163653Z LAST-MODIFIED:20201001T220851Z UID:2058-1603296900-1603301400@colleges.claremont.edu SUMMARY:Moody Lecture: Prof. Nadia Abuelezam DESCRIPTION:Title: Injustice\, Inequity\, and Inequality: Lessons at the Intersection of Mathematics\, Epidemiology\, and Racism \nRegistration information for this talk at: https://www.hmc.edu/mathematics/moody-lecture-series/ \nAbstract:The COVID-19 pandemic has exposed existing health inequities for communities of color in the United States. Racism is a known structural cause of these health inequities. Counterfactuals are essential to our understanding of causal relationships in epidemiology\, but how do you formulate a counterfactual for racism? This talk will explore the basis for counterfactual thinking in epidemiology and the ways in which we need to “re-imagine” counterfactuals to address one of society’s longest standing issues: racism. \nNadia N. Abuelezam\, Sc.D. is an epidemiologist and assistant professor at the Connell School of Nursing. Dr. Abuelezam was trained in infectious disease epidemiology at the Harvard T.H. Chan School of Public Health. She graduated from Harvey Mudd College in 2009 with a B.S. in Mathematical Biology. \nThe Harvey Mudd College Department of Mathematics established the Moody Lecture Series in honor and memory of Michael Moody\, who chaired the department from 1996-2002. URL:https://colleges.claremont.edu/ccms/event/moody-lecture-prof-nadia-abuelezam/ LOCATION:Zoom CATEGORIES:Colloquium ORGANIZER;CN="Andrew Bernoff":MAILTO:ajb@hmc.edu END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201026T150000 DTEND;TZID=America/Los_Angeles:20201026T160000 DTSTAMP:20260510T054310 CREATED:20200128T182630Z LAST-MODIFIED:20201016T000308Z UID:1821-1603724400-1603728000@colleges.claremont.edu SUMMARY:Applied Math Talk: Thin liquid film resulting from a distributed source on a vertical wall given by Yadong Ruan (CGU) DESCRIPTION:In this talk\, we will talk about the thin film model derived for liquid film resulting from a distributed source on a vertical wall and some distinct properties about the model. We will discuss the different behavior and properties of the model with and without considering surface tension. When the surface tension is neglected\, a critical source strength is found below which the film flows entirely upward due to the airflow\, and above which some of the flow is carried downward by gravity. In both cases\, a steady state is established over the region where the finite source is located. The presence of surface tension\, even when small\, causes a dramatic change in the film profiles and the speed and structure of the shock waves. These are studied in more detail by examining the traveling wave solutions away from the source region. URL:https://colleges.claremont.edu/ccms/event/applied-math-talk-given-by-yadong-ruan-cgu/ LOCATION:CA CATEGORIES:Applied Math Seminar END:VEVENT BEGIN:VEVENT DTSTART;TZID=America/Los_Angeles:20201028T161500 DTEND;TZID=America/Los_Angeles:20201028T173000 DTSTAMP:20260510T054310 CREATED:20200910T153940Z LAST-MODIFIED:20201007T211225Z UID:2027-1603901700-1603906200@colleges.claremont.edu SUMMARY:Prof. Stephan Ramon Garcia DESCRIPTION:Title: Combinatorics and the Kitchen Sink \nAbstract: Numerical semigroups are simple combinatorial objects that lead to deep and subtle questions. We answer in one fell swoop virtually all asymptotic questions about factorization lengths in numerical semigroups. Surprisingly\, this uses tools from complex\, harmonic\, and functional analysis\, probability theory\, algebraic combinatorics\, and computer-aided design! Our results yield uncannily accurate predictions that agree with numerical computations\, along with some totally unexpected byproducts. \nThis work was partially supported by NSF Grant DMS-1800123. Joint work with A. Böttcher\, M. Omar\, C.O’Neill\, and Pomona undergraduate students T. Wesley (’21) and S.Yih (’18). \nProf. Garcia is the W.M. Keck Distinguished Service Professor and Professor of Mathematics at Pomona College URL:https://colleges.claremont.edu/ccms/event/prof-stephan-ramon-garcia/ LOCATION:Zoom CATEGORIES:Colloquium ORGANIZER;CN="Andrew Bernoff":MAILTO:ajb@hmc.edu END:VEVENT END:VCALENDAR