BEGIN:VCALENDAR VERSION:2.0 PRODID:-//University of Utah Math Department//Departmental Colloquium//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Departmental Colloquium - Spring 2015 X-WR-CALDESC:Departmental Colloquium at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20150115T160000-davide-reduzzi@math.utah.edu DTSTART;TZID=America/Denver:20150115T160000 DTEND;TZID=America/Denver:20150115T170000 DTSTAMP:20260828T105759Z SUMMARY:Torsion and Galois representations DESCRIPTION:Speaker: Davide Reduzzi\, The University of Chicago\n\nThe absolute Galois group of a number field is a mysterious object, that one can try to understand by means of its representations. It is known that holomorphic cuspidal modular newforms are, in a suitable sense, a source of many p-adic Galois representations. More generally, it is conjectured that … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150122T160000-jae-kyoung-kim@math.utah.edu DTSTART;TZID=America/Denver:20150122T160000 DTEND;TZID=America/Denver:20150122T170000 DTSTAMP:20260828T105759Z SUMMARY:The process of mathematical modeling for complex biological systems DESCRIPTION:Speaker: Jae Kyoung Kim\, The Ohio State University\n\nSince the revolution of molecular biology in the early 1980s, mathematical modeling has been widely used to understand complex biological systems, which consist of non-linear and stochastic biochemical interactions. Typically, the process of applying mathematical models to biological systems … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150129T160000-stefan-patrikis@math.utah.edu DTSTART;TZID=America/Denver:20150129T160000 DTEND;TZID=America/Denver:20150129T170000 DTSTAMP:20260828T105759Z SUMMARY:Projective representations and motives DESCRIPTION:Speaker: Stefan Patrikis\, Massachusetts Institute of Technology\n\nIn the theory of finite groups, there are basic but subtle differences in the behavior of ordinary representations and of projective representations. After introducing these elementary phenomena, I will discuss their ramifications in an `arithmetic' setting, where abstract groups are replaced by … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150205T160000-alan-veliz-cuba@math.utah.edu DTSTART;TZID=America/Denver:20150205T160000 DTEND;TZID=America/Denver:20150205T170000 DTSTAMP:20260828T105759Z SUMMARY:From structure to dynamics and from dynamics to structure: a systems mathematics approach DESCRIPTION:Speaker: Alan Veliz-Cuba\, University of Houston and Rice University\n\nUnderstanding the interplay between network structure and dynamical properties is a key problem in systems theory. Although much progress has been made to understand systems, there is still no framework that focuses on the system itself instead of the representation of its components. In this talk, … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150226T160000-alexander-aue@math.utah.edu DTSTART;TZID=America/Denver:20150226T160000 DTEND;TZID=America/Denver:20150226T170000 DTSTAMP:20260828T105759Z SUMMARY:Piecewise quantile autoregressive modeling of non-stationary time series DESCRIPTION:Speaker: Alexander Aue\, University of California, Davis\n\nA new methodology is discussed for the fitting of non-stationary time series that exhibit non-linearity, asymmetry, local persistence and changes in location, scale and shape of the underlying distribution. To do this, model selection techniques are developed for the class of piecewise stationary … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150305T160000-vitaly-bergelson@math.utah.edu DTSTART;TZID=America/Denver:20150305T160000 DTEND;TZID=America/Denver:20150305T170000 DTSTAMP:20260828T105759Z SUMMARY:Uniform distribution, generalized polynomials and translations on nil-manifolds DESCRIPTION:Speaker: Vitaly Bergelson\, The Ohio State University\n\nA classical theorem due to H. Weyl states that if P is a real polynomial such that at least one of its coefficients (other than the constant term) is irrational, then the sequence P(n), n=1,2,... is uniformly distributed mod 1. After briefly reviewing various approaches to the proof of Weyl's … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150312T160000-bruce-kleiner@math.utah.edu DTSTART;TZID=America/Denver:20150312T160000 DTEND;TZID=America/Denver:20150312T170000 DTSTAMP:20260828T105759Z SUMMARY:Mean curvature flow DESCRIPTION:Speaker: Bruce Kleiner\, New York University\n\nA mean curvature flow is an evolving submanifold M_t whose velocity is equal to its mean curvature. Mean curvature flow is in some respects the most natural evolution equation for a moving submanifold: it is the gradient flow of the area functional, as well as the analog of the heat equation for … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150326T160000-michael-graham@math.utah.edu DTSTART;TZID=America/Denver:20150326T160000 DTEND;TZID=America/Denver:20150326T170000 DTSTAMP:20260828T105759Z SUMMARY:Collide and conquer: flow-induced segregation phenomena in blood and other multicomponent suspensions DESCRIPTION:Speaker: Michael Graham\, University of Wisconsin-Madison\n\nBlood is a suspension of particles of various shapes, sizes and mechanical properties and the distribution of these particles during blood flow is important in many contexts. Red blood cells (RBCs) tend to migrate toward the center of a blood vessel, leaving a so-called cell-free layer at the vessel … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150402T160000-konstantin-khanin@math.utah.edu DTSTART;TZID=America/Denver:20150402T160000 DTEND;TZID=America/Denver:20150402T170000 DTSTAMP:20260828T105759Z SUMMARY:Renormalization and Rigidity in Dynamics DESCRIPTION:Speaker: Konstantin Khanin\, University of Toronto\n\nIn the last 35 years renormalization became one of the main tools in the theory of dynamical systems. We shall discuss renormalization theory in the simplest setting of circle dynamics, and present the results in the cases of diffeomorphisms, critical circle maps, and maps with breaks. The relation … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT BEGIN:VEVENT UID:20150409T160000-pierre-degond@math.utah.edu DTSTART;TZID=America/Denver:20150409T160000 DTEND;TZID=America/Denver:20150409T170000 DTSTAMP:20260828T105759Z SUMMARY:Mathematical challenges in collective dynamics and self-organization DESCRIPTION:Speaker: Pierre Degond\, Imperial College London\n\nMost living or social systems consist of a large number of agents interacting through elementary rules involving only neighbouring agents. In spite of their simplicity, these interactions drive the system towards a self-organized coherent collective behavior. The emergence of collective dynamics … LOCATION:LCB 219 URL:http://math.utah.edu/research/colloquia/test/2015-spring/ END:VEVENT END:VCALENDAR