BEGIN:VCALENDAR VERSION:2.0 PRODID:-//University of Utah Math Department//Departmental Colloquium//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Departmental Colloquium - Fall 2006 X-WR-CALDESC:Departmental Colloquium at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20060831T160000-michael-j.-shelley@math.utah.edu DTSTART;TZID=America/Denver:20060831T160000 DTEND;TZID=America/Denver:20060831T170000 DTSTAMP:20260821T120902Z SUMMARY:Transport in Visco-Elastic Flows. DESCRIPTION:Speaker: Michael J. Shelley\, Applied Math Lab, The Courant Institute\n\nI will discuss three interesting and related problems in the dynamics of complex fluids at low Reynolds number. The first concerns how visco-elasticity affects the peristaltic pumping of fluids -- which arises in many biological settings -- especially as related to loss of flow reversibility … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20060907T160000-j%C3%A1nos-koll%C3%A1r@math.utah.edu DTSTART;TZID=America/Denver:20060907T160000 DTEND;TZID=America/Denver:20060907T170000 DTSTAMP:20260821T120902Z SUMMARY:Einstein metrics on spheres. DESCRIPTION:Speaker: János Kollár\, Princeton University\n\nEinstein metrics are expected to provide the optimal connection between the local geometry and the global properties of a manifold. After an introduction, the talk describes the construction of new Einstein metrics on odd dimensional spheres using complex algebraic orbifolds. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061012T160000-mark-sapir@math.utah.edu DTSTART;TZID=America/Denver:20061012T160000 DTEND;TZID=America/Denver:20061012T170000 DTSTAMP:20260821T120902Z SUMMARY:Asymptotic cones of groups DESCRIPTION:Speaker: Mark Sapir\, Vanderbilt University\n\nThe asymptotic cone of a metric space X is the Gromov-Hausdorff limit of rescaled copies X/n of X, n=1,2,.... They were introduced by Gromov in his celebrated paper about groups of polynomial growth. Every finitely generated group becomes a metric space if we equip it with the word metric. … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061019T160000-james-mckernan@math.utah.edu DTSTART;TZID=America/Denver:20061019T160000 DTEND;TZID=America/Denver:20061019T170000 DTSTAMP:20260821T120902Z SUMMARY:Geometry of Algebraic Curves and Birational Geometry DESCRIPTION:Speaker: James McKernan\, University of California, Santa Barbara\n\nEveryone knows how to integrate However it is impossible to integrate using only elementary functions. In this talk we will show that the reason for this is due to the geometry of the underlying algebraic curve, most especially the meromorphic forms on the curve. We will then show how the behaviour … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061019T160000-james-m-c-kernan@math.utah.edu DTSTART;TZID=America/Denver:20061019T160000 DTEND;TZID=America/Denver:20061019T170000 DTSTAMP:20260821T120902Z SUMMARY:A new approach to Mori theory DESCRIPTION:Speaker: James M c Kernan\, University of California, Santa Barbara\n\nEveryone knows how to integrate... LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061026T160000-joseph-landsberg@math.utah.edu DTSTART;TZID=America/Denver:20061026T160000 DTEND;TZID=America/Denver:20061026T170000 DTSTAMP:20260821T120902Z SUMMARY:Algebraic geometry and projective differential geometry DESCRIPTION:Speaker: Joseph Landsberg\, Texas A&M University\n\nWhat does the local differential geometry of a subvariety of projective space tell us about its global geometry? I will survey results on the rigidity of homogeneous varieties and the Hwang-Mok program for Fano manifolds in the projective setting. LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061102T160000-thomas-strohmer@math.utah.edu DTSTART;TZID=America/Denver:20061102T160000 DTEND;TZID=America/Denver:20061102T170000 DTSTAMP:20260821T120902Z SUMMARY:Can you hear me now? From mobile communications to noncommutative harmonic analysis DESCRIPTION:Speaker: Thomas Strohmer\, University of California, Davis\n\nUnlike classical telecommunication, whose fundamental principles can be described via commutative harmonic analysis, the analysis and design of advanced wireless communication systems requires methods from noncommmutative harmonic analysis. We will see that the modeling of the mobile radio channel … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061109T160000-vasundara-v.-varadan@math.utah.edu DTSTART;TZID=America/Denver:20061109T160000 DTEND;TZID=America/Denver:20061109T170000 DTSTAMP:20260821T120902Z SUMMARY:The Emperor's Metamaterial Cloak? DESCRIPTION:Speaker: Vasundara V. Varadan\, Microwave and Optics Laboratory for Imaging & Characterization, University of Arkansas\n\nMetamaterials with strong dispersion that can be tailored, magnetic properties from engineered structures, negative permittivity and/or permeability and negative refractive index opened up an exciting research field less than a decade ago when Veselago's long forgotten paper on negative property … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061116T160000-francis-narcowich@math.utah.edu DTSTART;TZID=America/Denver:20061116T160000 DTEND;TZID=America/Denver:20061116T170000 DTSTAMP:20260821T120902Z SUMMARY:Positive-weight quadrature and localized tight frames on Euclidean spheres. DESCRIPTION:Speaker: Francis Narcowich\, Texas A&M University\n\nIn this talk we will first discuss positive-weight quadrature formulas for the sphere that the author and co-workers have recently developed. We will also present a new class of frames on the sphere; these frames use these quadrature formulas. Frames resemble wavelets in many ways, and in fact are … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT BEGIN:VEVENT UID:20061130T160000-david-aldous@math.utah.edu DTSTART;TZID=America/Denver:20061130T160000 DTEND;TZID=America/Denver:20061130T170000 DTSTAMP:20260821T120902Z SUMMARY:Coherent models of macroevolution. DESCRIPTION:Speaker: David Aldous\, University of California, Berkeley\n\nWe give a mathematician's view of evolutionary biology literature concerning stochastic models for phylogenetic trees. We spotlight a model for the tree on n extant species that would be observed if macroevolution were purely random. The model can be extended in two ways -- to time series of … LOCATION:JWB 335 URL:http://math.utah.edu/research/colloquia/test/2006-fall/ END:VEVENT END:VCALENDAR