BEGIN:VCALENDAR VERSION:2.0 PRODID:-//University of Utah Math Department//Departmental Colloquium//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Departmental Colloquium - Spring 2017 X-WR-CALDESC:Departmental Colloquium at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20170110T160000-ricardo-alonso@math.utah.edu DTSTART;TZID=America/Denver:20170110T160000 DTEND;TZID=America/Denver:20170110T170000 DTSTAMP:20260821T120902Z SUMMARY:Topics on kinetic theory: Dissipation and fractional diffusion DESCRIPTION:Speaker: Ricardo Alonso\, PUC-Rio\n\nKinetic theory is a powerful tool for modeling. It connects apparently dissimilar topics in science and, if properly used, produces models having remarkable agreement with experimentation in an ample range of scales. We navigate over a series of examples where modern kinetic theory plays a central … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170112T160000-martina-hofmanova@math.utah.edu DTSTART;TZID=America/Denver:20170112T160000 DTEND;TZID=America/Denver:20170112T170000 DTSTAMP:20260821T120902Z SUMMARY:Randomness in convection-diffusion problems DESCRIPTION:Speaker: Martina Hofmanova\, Technische Universität Berlin\n\nIn this talk, I will consider quasilinear parabolic PDEs subject to stochastic or rough perturbation and explain how various assumptions on coefficients and roughness of the noise naturally ask for different notions of solution with different regularity properties and different techniques of the … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170112T160000-dane-taylor@math.utah.edu DTSTART;TZID=America/Denver:20170112T160000 DTEND;TZID=America/Denver:20170112T170000 DTSTAMP:20260821T120902Z SUMMARY:Network-data analytics for multilayer and temporal networks DESCRIPTION:Speaker: Dane Taylor\, University of North Carolina, Chapel Hill\n\nMany datasets are best represented by multilayer networks in which layers encode different types of connections such as categorical social ties, interconnected infrastructures, or a network at different instances in time. Because most techniques to analyze networks have been developed for … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170117T160000-wenjing-liao@math.utah.edu DTSTART;TZID=America/Denver:20170117T160000 DTEND;TZID=America/Denver:20170117T170000 DTSTAMP:20260821T120902Z SUMMARY:Data analysis with low-dimensional structures DESCRIPTION:Speaker: Wenjing Liao\, Johns Hopkins University\n\nHigh-dimensional data arise in many fields of contemporary science and introduce new challenges in statistical learning. We model data sets as samples from a probability measure in R^D. When D is large, the well-known curse of dimensionality implies that an enormous amount of training data are … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170119T160000-andrew-snowden@math.utah.edu DTSTART;TZID=America/Denver:20170119T160000 DTEND;TZID=America/Denver:20170119T170000 DTSTAMP:20260821T120902Z SUMMARY:Recent progress in representation stability DESCRIPTION:Speaker: Andrew Snowden\, University of Michigan\n\nRepresentation stability is a relatively new field that studies somewhat exotic algebraic structures and exploits their properties to prove results (often asymptotic in nature) about objects of interest. I will describe some of the algebraic structures that appear (and state some important results … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170126T160000-brandon-levin@math.utah.edu DTSTART;TZID=America/Denver:20170126T160000 DTEND;TZID=America/Denver:20170126T170000 DTSTAMP:20260821T120902Z SUMMARY:Serre's conjecture on modular forms DESCRIPTION:Speaker: Brandon Levin\, University of Chicago\n\nThe Langlands program is a far-reaching set of conjectural connections between analytic objects (e.g., modular forms) and arithmetic objects (e.g., elliptic curves). In 1987, Serre made a bold conjecture about modular forms in the spirit of a characteristic p Langlands program. Serre's conjecture … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170131T160000-michele-coti-zelati@math.utah.edu DTSTART;TZID=America/Denver:20170131T160000 DTEND;TZID=America/Denver:20170131T170000 DTSTAMP:20260821T120902Z SUMMARY:Deterministic and stochastic aspects of fluid mixing DESCRIPTION:Speaker: Michele Coti Zelati\, University of Maryland\n\nThe process of mixing of a scalar quantity into a homogenous fluid is a familiar physical phenomenon that we experience daily. In applied mathematics, it is also relevant to the theory of hydrodynamic stability at high Reynolds numbers - a theory that dates back to the 1830's and yet only recently … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170202T160000-dan-shen@math.utah.edu DTSTART;TZID=America/Denver:20170202T160000 DTEND;TZID=America/Denver:20170202T170000 DTSTAMP:20260821T120902Z SUMMARY:Dimension Reduction of Neuroimaging Data Analysis DESCRIPTION:Speaker: Dan Shen\, University of South Florida\n\nHigh dimensionality has become a common feature of "big data” encountered in many divergent fields, such as neuroimaging and genetic analysis, which provides modern challenges for statistical analysis. To cope with the high dimensionality, dimension reduction becomes necessary. Principal component … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170309T160000-fabrizio-catanese@math.utah.edu DTSTART;TZID=America/Denver:20170309T160000 DTEND;TZID=America/Denver:20170309T170000 DTSTAMP:20260821T120902Z SUMMARY:Configurations of lines and interesting algebraic surfaces DESCRIPTION:Speaker: Fabrizio Catanese\, Universität Bayreuth\n\nMany important questions in the theory of surfaces and in algebraic geometry have been solved thanks to explicit constructions of algebraic surfaces as abelian coverings branched over special configurations of lines. After recalling the classical configurations (Pappus, Desargues, Fano, Hesse) and … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170322T160000-nick-trefethen@math.utah.edu DTSTART;TZID=America/Denver:20170322T160000 DTEND;TZID=America/Denver:20170322T170000 DTSTAMP:20260821T120902Z SUMMARY:Mathematics of the Faraday Cage DESCRIPTION:Speaker: Nick Trefethen\, University of Oxford\n\nEverybody has heard of the Faraday cage effect, in which a wire mesh does a good job of blocking electric fields and electromagnetic waves. Surely the mathematics of such a famous and useful phenomenon has been long ago worked out and written up in the textbooks? It seems to be not so, and indeed, … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170323T160000-peter-mucha@math.utah.edu DTSTART;TZID=America/Denver:20170323T160000 DTEND;TZID=America/Denver:20170323T170000 DTSTAMP:20260821T120902Z SUMMARY:Modeling dynamics in networks: coevolving voter models DESCRIPTION:Speaker: Peter Mucha\, University of North Carolina at Chapel Hill\n\nWe consider idealized network dynamics of individuals changing their opinions and connections in a coevolving process driving towards consensus. Discordant edges connecting disagreeing nodes are resolved either through one individual changing opinion to match the other or through a rewiring process, … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170330T160000-chun-liu@math.utah.edu DTSTART;TZID=America/Denver:20170330T160000 DTEND;TZID=America/Denver:20170330T170000 DTSTAMP:20260821T120902Z SUMMARY:General Diffusion in Biological Environments DESCRIPTION:Speaker: Chun Liu\, Pennsylvania State University\n\nAlmost all biological activities involve transport and distribution of ions and charged particles. The complicated coupling and competition between different ionic solutions in various biological environments give the intricate specificity and selectivity in these systems. In this talk, I will … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170403T160000-paris-perdikaris@math.utah.edu DTSTART;TZID=America/Denver:20170403T160000 DTEND;TZID=America/Denver:20170403T170000 DTSTAMP:20260821T120902Z SUMMARY:Data-driven probabilistic modeling and high-performance computing: algorithms and applications to physical and biological systems DESCRIPTION:Speaker: Paris Perdikaris;\, MIT\n\nThe analysis of complex physical and biological systems necessitates the accurate resolution of in- teractions across multiple spatio-temporal scales, the consistent propagation of information between concurrently coupled multi-physics processes, and the effective quantification of model error and … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170413T160000-colin-adams@math.utah.edu DTSTART;TZID=America/Denver:20170413T160000 DTEND;TZID=America/Denver:20170413T170000 DTSTAMP:20260821T120902Z SUMMARY:Blown Away: What Knot to Do When Sailing DESCRIPTION:Speaker: Colin Adams\, Williams College\n\nBeing a tale of adventure on the high seas involving great risk to the tale teller, and how an understanding of the mathematical theory of knots saved his bacon. No nautical or mathematical background assumed. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT BEGIN:VEVENT UID:20170420T160000-lek-heng-lim@math.utah.edu DTSTART;TZID=America/Denver:20170420T160000 DTEND;TZID=America/Denver:20170420T170000 DTSTAMP:20260821T120902Z SUMMARY:Hypermatrices DESCRIPTION:Speaker: Lek-Heng Lim\, The University of Chicago\n\nThis talk is intended for those who, like the speaker, have at some point wondered whether there is a theory of three- or higher-dimensional matrices that parallels matrix theory. A d-dimensional hypermatrix may be viewed as a coordinate representation of an order-d tensor. The simplest type of … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2017-spring/ END:VEVENT END:VCALENDAR