BEGIN:VCALENDAR VERSION:2.0 PRODID:-//University of Utah Math Department//Algebraic Geometry Seminar//EN CALSCALE:GREGORIAN METHOD:PUBLISH X-WR-CALNAME:Algebraic Geometry Seminar - Spring 2013 X-WR-CALDESC:Algebraic Geometry Seminar at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20130108T153000-yongbin-ruan@math.utah.edu DTSTART;TZID=America/Denver:20130108T153000 DTEND;TZID=America/Denver:20130108T163000 DTSTAMP:20260819T205508Z SUMMARY:Mirror symmetry and modular form DESCRIPTION:Speaker: Yongbin Ruan\, University of Michigan\n\nTraditionally, we use mirror symmetry to map a difficult problem (A-model) to an easier problem (B-model). Recently, there is a great deal of activities in mathematics to understand the modularity properties of Gromov-Witten theory, a phenomenon suggested by BCOV almost twenty years ago. Mirror … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130115T153000-sofia-tirabassi@math.utah.edu DTSTART;TZID=America/Denver:20130115T153000 DTEND;TZID=America/Denver:20130115T163000 DTSTAMP:20260819T205508Z SUMMARY:Integral transforms and the birational geometry of irregular varieties DESCRIPTION:Speaker: Sofia Tirabassi\, University of Utah\n\nWe present some recent results concerning the birational geometry of varieties of maximal Albanese dimension obtained by the means of Pareschi--Popa M-regularity theory. Many of these result had been obtained in collaboration with Z. Jiang and M. Lahoz. LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130122T153000-zachary-maddock@math.utah.edu DTSTART;TZID=America/Denver:20130122T153000 DTEND;TZID=America/Denver:20130122T163000 DTSTAMP:20260819T205508Z SUMMARY:Regular del Pezzo surfaces with irregularity DESCRIPTION:Speaker: Zachary Maddock\, Columbia University\n\nOver perfect fields, the geometry of regular del Pezzo surfaces has been classified, but over imperfect fields, the problem remains largely open. We construct the first examples of regular del Pezzo surfaces X that have positive irregularity h^1(X, O_X ) > 0. Our construction is by quotienting a … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130129T153000-zsolt-patakfalvi@math.utah.edu DTSTART;TZID=America/Denver:20130129T153000 DTEND;TZID=America/Denver:20130129T163000 DTSTAMP:20260819T205508Z SUMMARY:Global applications of relative test ideals DESCRIPTION:Speaker: Zsolt Patakfalvi\, Princeton University\n\nThis talk is a continuation of a talk given by Karl Schwede during the Fall semester. It is based on a joint project with Karl Schwede and Wenliang Zhang aiming to interpret many notions of the F-singularity theory in the relative setting. One of the surprising results is the definition of a … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130205T153000-tommaso-de-fernex@math.utah.edu DTSTART;TZID=America/Denver:20130205T153000 DTEND;TZID=America/Denver:20130205T163000 DTSTAMP:20260819T205508Z SUMMARY:The Nash problem on families of arcs DESCRIPTION:Speaker: Tommaso de Fernex\, University of Utah\n\nHironaka's theorem on resolution of singularities allows to study the geometry of a singular variety by associating to it a smooth birational model. A more intrinsic approach to study singularities was proposed by Nash. The idea is to look at the space of arcs (i.e. analytic germs of curves) passing … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130212T153000-aaron-bertram@math.utah.edu DTSTART;TZID=America/Denver:20130212T153000 DTEND;TZID=America/Denver:20130212T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: Aaron Bertram\, University of Utah\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130219T153000-yu-han-liu@math.utah.edu DTSTART;TZID=America/Denver:20130219T153000 DTEND;TZID=America/Denver:20130219T163000 DTSTAMP:20260819T205508Z SUMMARY:Birational geometry and tensor triangular geometry DESCRIPTION:Speaker: Yu-Han Liu\, Princeton University\n\nIn this talk I will explain how some familiar constructions in birational geometry can be studied using tensor triangular geometry. LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130226T153000-mihnea-popa@math.utah.edu DTSTART;TZID=America/Denver:20130226T153000 DTEND;TZID=America/Denver:20130226T163000 DTSTAMP:20260819T205508Z SUMMARY:Kodaira dimension and zeros of holomorphic one-forms DESCRIPTION:Speaker: Mihnea Popa\, University of Illinois at Chicago\n\nI will report on recent work with C. Schnell, in which we prove that every holomorphic one-form on a variety of general type must vanish at some point (together with a suitable generalization to arbitrary Kodaira dimension). The proof makes use of generic vanishing theory for Hodge D-modules on … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130305T153000-domingo-toledo@math.utah.edu DTSTART;TZID=America/Denver:20130305T153000 DTEND;TZID=America/Denver:20130305T163000 DTSTAMP:20260819T205508Z SUMMARY:Quotients of non-classical flag domains are not algebraic. DESCRIPTION:Speaker: Domingo Toledo\, University of Utah\n\nThe title refers to a class of homogeneous complex manifolds which includes the period domains for Hodge structures of weight at least two. The absence of automorphic forms for higher weight variations of Hodge structure suggests the theorem in the title. This talk will present a proof of this … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130312T153000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20130312T153000 DTEND;TZID=America/Denver:20130312T163000 DTSTAMP:20260819T205508Z SUMMARY:Spring Break DESCRIPTION:Speaker: speaker\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130319T153000-bumsig-kim@math.utah.edu DTSTART;TZID=America/Denver:20130319T153000 DTEND;TZID=America/Denver:20130319T163000 DTSTAMP:20260819T205508Z SUMMARY:Quasimap invariants and mirror maps DESCRIPTION:Speaker: Bumsig Kim\, KIAS\n\nThe moduli spaces of stable quasimaps unify various moduli appearing in the study of Gromov-Witten Theory. We introduce big I-functions as the quasimap version of J-functions, generalizing Givental's small I-functions of smooth toric complete intersections. The J-functions are the GW counterparts of … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130326T153000-yifan-chen@math.utah.edu DTSTART;TZID=America/Denver:20130326T153000 DTEND;TZID=America/Denver:20130326T163000 DTSTAMP:20260819T205508Z SUMMARY:A new family of surfaces of general type with p_g=0 and K^2=7 DESCRIPTION:Speaker: Yifan Chen\, University of Utah\n\nThis talk is aimed to give a classification of the pair (S, G), where S is a smooth minimal surface of general type with p_g=0 and K^2=7, and G is a subgroup of Aut(S), and G is isomorphic to (Z/2Z)^2. From the classification, a new family of surfaces is constructed. These new surfaces are the first … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130402T153000-samouil-molcho@math.utah.edu DTSTART;TZID=America/Denver:20130402T153000 DTEND;TZID=America/Denver:20130402T163000 DTSTAMP:20260819T205508Z SUMMARY:Localization in the Space of Logarithmic Stable Maps DESCRIPTION:Speaker: Samouil Molcho\, Brown University\n\nThe space of stable maps to a smooth variety relative to a smooth divisor, defined by Jun Li, is an important moduli space in Gromov-Witten theory, which arises naturally when one tries to study Gromov-Witten invariants by degeneration. It's deformation theory however is complicated. A related space … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130410T140000-mark-de-cataldo@math.utah.edu DTSTART;TZID=America/Denver:20130410T140000 DTEND;TZID=America/Denver:20130410T150000 DTSTAMP:20260819T205508Z SUMMARY:The projectors of the decomposition theorem are absolute Hodge DESCRIPTION:Speaker: Mark De Cataldo\, SUNY, Stony Brook\n\nI report on joint work with Luca Migliorini at Bologna. If you have a map of complex projective manifolds, then the rational cohomology of the domain splits into a direct sum of pieces in a way dictated by the singularities of the map. By Poincare' duality, the corresponding projections can be … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130416T153000-christopher-hacon@math.utah.edu DTSTART;TZID=America/Denver:20130416T153000 DTEND;TZID=America/Denver:20130416T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: Christopher Hacon\, University of Utah\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT BEGIN:VEVENT UID:20130423T153000-renzo-cavalieri@math.utah.edu DTSTART;TZID=America/Denver:20130423T153000 DTEND;TZID=America/Denver:20130423T163000 DTSTAMP:20260819T205508Z SUMMARY:Toric Open GW Invariants and the Crepant Resolution Conjecture DESCRIPTION:Speaker: Renzo Cavalieri\, Colorado State University\n\nThe question that the Crepant Resolution Conjecture (CRC) wants to address is: given an orbifold X that admits a crepant resolution Y, can we systematically compare the Gromov-Witten theories of the two spaces? That this should happen was first observed by physicists and the question was imported … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2013-spring/ END:VEVENT END:VCALENDAR