BEGIN:VCALENDAR VERSION:2.0 PRODID:-//University of Utah Math Department//Departmental Colloquium//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Departmental Colloquium - Fall 2005 X-WR-CALDESC:Departmental Colloquium at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20050922T160000-istv%C3%A1n-berkes@math.utah.edu DTSTART;TZID=America/Denver:20050922T160000 DTEND;TZID=America/Denver:20050922T170000 DTSTAMP:20260828T105759Z SUMMARY:Uniform distribution and randomness in analysis DESCRIPTION:Speaker: István Berkes\, Alfréd Rényi Institute of Mathematics (Visiting Univ. of Utah)\n\nAn infinite sequence in (0, 1) is called uniformly distributed in the Weyl sense if any subinterval (a,b) of (0,1) contains, in an asymptotic sense, a fraction b-a of the terms of the sequence. Such sequences play an important role in computer science (random number generation, Monte Carlo … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20050929T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20050929T160000 DTEND;TZID=America/Denver:20050929T170000 DTSTAMP:20260828T105759Z SUMMARY:Diagonalizing Group Actions DESCRIPTION:Speaker: speaker\n\nArchival event entry migrated from the legacy colloquium website. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20050930T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20050930T160000 DTEND;TZID=America/Denver:20050930T170000 DTSTAMP:20260828T105759Z SUMMARY:Nilpotent Matrices and the Permutation Group DESCRIPTION:Speaker: speaker\n\nThe problem of classifying n x n matrices over a field k has two aspects. One is arithemetic: any degree n extension field K of k can be embedded in nxn matrices, in a way canonical up to conjugacy. In terms of linear algebra, the corresponding matrices have their eigenvalues in K. For this reason, … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051001T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051001T160000 DTEND;TZID=America/Denver:20051001T170000 DTSTAMP:20260828T105759Z SUMMARY:Arthur Packets and Unitary Representations DESCRIPTION:Speaker: speaker\n\nArchival event entry migrated from the legacy colloquium website. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051007T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051007T160000 DTEND;TZID=America/Denver:20051007T170000 DTSTAMP:20260828T105759Z SUMMARY:Fall Break Holiday DESCRIPTION:Speaker: speaker\n\nArchival event entry migrated from the legacy colloquium website. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051020T160000-walter-neumann@math.utah.edu DTSTART;TZID=America/Denver:20051020T160000 DTEND;TZID=America/Denver:20051020T170000 DTSTAMP:20260828T105759Z SUMMARY:Hilbert's 3rd problem and invariants of 3-manifolds DESCRIPTION:Speaker: Walter Neumann\, Columbia Univ.\n\nThis talk will describe the status of Hilbert's third problem on equidecomposability of polytopes, whose solution by Dehn in 1900 led to refinements that remain unsolved and that have interesting links with invariants of 3-manifolds. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051021T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051021T160000 DTEND;TZID=America/Denver:20051021T170000 DTSTAMP:20260828T105759Z SUMMARY:High Resolution Algorithms Through Localized Fourier Analysis DESCRIPTION:Speaker: speaker\n\nAlthough global projections such as truncated Fourier series yield exponentially close approximations for smooth functions, a single discontinuity introduces O(1) spurious oscillations, Gibbs' Phenomena, and reduces the high order convergence rate to first order. A family of filters with different … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051027T160000-eric-sharpe@math.utah.edu DTSTART;TZID=America/Denver:20051027T160000 DTEND;TZID=America/Denver:20051027T170000 DTSTAMP:20260828T105759Z SUMMARY:String theory: math from physics DESCRIPTION:Speaker: Eric Sharpe\, Univ. of Utah\n\nString theory is a proposed theory of physics, which has turned out to have numerous interactions with mathematics. In this talk I will review some examples of mathematics motivated by this bit of physics, which are studied by several department members. I will begin by reviewing ``mirror … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051028T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051028T160000 DTEND;TZID=America/Denver:20051028T170000 DTSTAMP:20260828T105759Z SUMMARY:Non-positively Curved Cubical Complexes in Group Theory DESCRIPTION:Speaker: speaker\n\nWe will discuss non-positively curved cubical complexes and their relationship to various topics in geometric group theory. * Return to top * LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051103T160000-alexander-balk@math.utah.edu DTSTART;TZID=America/Denver:20051103T160000 DTEND;TZID=America/Denver:20051103T170000 DTSTAMP:20260828T105759Z SUMMARY:Turbulence and conservation laws DESCRIPTION:Speaker: Alexander Balk\, Univ. of Utah\n\nI will talk about the crucial role of conservation laws in turbulence. The talk consists of three parts: 1. What is the problem of turbulence? Why is it important? Why is it a challenge? 2. The conservation laws determine the main featutres of turbulence. 3. In the last part I will present my new … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051104T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051104T160000 DTEND;TZID=America/Denver:20051104T170000 DTSTAMP:20260828T105759Z SUMMARY:Impact Testing and Modeling in Support of the Space Shuttle Columbia Investigation DESCRIPTION:Speaker: speaker\n\nThe Orbiter Columbia disintegrated on re-entry on Saturday, February 1, 2003. The next Monday, Southwest Research Institute was contacted about performing tests (and later analysis) to determine the plausibility of a foam impact on the left wing being the cause of the loss of the vehicle. This talk … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051110T160000-dave-keyes@math.utah.edu DTSTART;TZID=America/Denver:20051110T160000 DTEND;TZID=America/Denver:20051110T170000 DTSTAMP:20260828T105759Z SUMMARY:Mathematical Software for High-end Computing and Applications in Fusion Energy Research DESCRIPTION:Speaker: Dave Keyes\, Columbia Univ.\n\nThe Terascale Optimal PDE Simulations (TOPS) project is sponsored by the Department of Energy to research, implement, deploy, maintain, and support in collaborations with scientific users a collection of open-source, scalable solvers for the discretized problems in such applications as fusion … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051111T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051111T160000 DTEND;TZID=America/Denver:20051111T170000 DTSTAMP:20260828T105759Z SUMMARY:Weighted L 2 Cohomology of Coxeter Groups DESCRIPTION:Speaker: speaker\n\nI will discuss a new type of cohomology, depending on a real parameter q, of a cell complex associated to an infinite Coxeter group W. As q varies these cohomology groups interpolate between ordinary cohomology and cohomology with compact supports. Although these groups are Hilbert spaces (usually … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051117T160000-chandreshekar-khare@math.utah.edu DTSTART;TZID=America/Denver:20051117T160000 DTEND;TZID=America/Denver:20051117T170000 DTSTAMP:20260828T105759Z SUMMARY:Serre's modularity conjecture DESCRIPTION:Speaker: Chandreshekar Khare\, Univ. of Utah\n\nIn the early 1970's, Serre made a conjecture about mod p Galois representations that has been very influential. I will talk about recent progress towards the resolution of this conjecture. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051118T160000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20051118T160000 DTEND;TZID=America/Denver:20051118T170000 DTSTAMP:20260828T105759Z SUMMARY:Locomotion by Destabilizing Symmetries DESCRIPTION:Speaker: speaker\n\nRecent experiments in the Courant Institute Applied Math Lab have shown fascinating and subtle interactions between fluids and bodies moving through them, and have suggested that fluidic response to body motions can change dramatically with the "forcing Reynolds number," and can result in body … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT BEGIN:VEVENT UID:20051201T160000-gang-tian@math.utah.edu DTSTART;TZID=America/Denver:20051201T160000 DTEND;TZID=America/Denver:20051201T170000 DTSTAMP:20260828T105759Z SUMMARY:Kahler-Ricci flow and classification of algebraic manifolds DESCRIPTION:Speaker: Gang Tian\, Princeton\n\nArchival event entry migrated from the legacy colloquium website. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2005-fall/ END:VEVENT END:VCALENDAR