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 2026 X-WR-CALDESC:Algebraic Geometry Seminar at University of Utah Mathematics Department X-WR-TIMEZONE:America/Denver BEGIN:VEVENT UID:20260106T153000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20260106T153000 DTEND;TZID=America/Denver:20260106T163000 DTSTAMP:20260819T205508Z SUMMARY:No Seminar DESCRIPTION:Speaker: speaker\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260113T153000-javier-carvajal-rojas@math.utah.edu DTSTART;TZID=America/Denver:20260113T153000 DTEND;TZID=America/Denver:20260113T163000 DTSTAMP:20260819T205508Z SUMMARY:The Geometry of Frobenius on Toric Varieties DESCRIPTION:Speaker: Javier Carvajal-Rojas\, CIMAT\n\nHow much of the geometry of a positive characteristic variety is encoded in its Frobenius? I'll give exact answers to this vague question in the toric case. For this, I'll introduce a Frobenius-theoretic cone sitting inside the pseudo-effective cone whose interaction with the other nef/ample/big … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260205T160000-aaron-bertram@math.utah.edu DTSTART;TZID=America/Denver:20260205T160000 DTEND;TZID=America/Denver:20260205T170000 DTSTAMP:20260819T205508Z SUMMARY:Enriching Reider's Theorem for Surfaces with Stability Conditions DESCRIPTION:Speaker: Aaron Bertram\, Utah\n\nReider's Theorem is a remarkably precise criterion for very ampleness of line bundles of the form K_S + D on an algebraic surface. By using Bridgeland stability conditions and various theorems about the moduli spaces of stable objects, we can extract information about the birational geometry of the … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260210T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260210T153000 DTEND;TZID=America/Denver:20260210T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260217T153000-marta-benozzo@math.utah.edu DTSTART;TZID=America/Denver:20260217T153000 DTEND;TZID=America/Denver:20260217T163000 DTSTAMP:20260819T205508Z SUMMARY:On the canonical bundle formula in positive characteristic DESCRIPTION:Speaker: Marta Benozzo\, Universite Paris-Saclay\n\nAn important problem in birational geometry is trying to relate in a meaningful way the canonical bundles of the source and the base of a fibration. The first instance of such a formula is Kodaira's canonical bundle formula for surfaces which admit a fibration with elliptic fibres. It describes the … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260224T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260224T153000 DTEND;TZID=America/Denver:20260224T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260303T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260303T153000 DTEND;TZID=America/Denver:20260303T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260310T153000-speaker@math.utah.edu DTSTART;TZID=America/Denver:20260310T153000 DTEND;TZID=America/Denver:20260310T163000 DTSTAMP:20260819T205508Z SUMMARY:Spring Break DESCRIPTION:Speaker: speaker\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260317T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260317T153000 DTEND;TZID=America/Denver:20260317T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260324T160000-zhijia-zang@math.utah.edu DTSTART;TZID=America/Denver:20260324T160000 DTEND;TZID=America/Denver:20260324T170000 DTSTAMP:20260819T205508Z SUMMARY:Equivariant unirationality of threefolds DESCRIPTION:Speaker: Zhijia Zang\, NYU\n\nLet X be a variety carrying a generically free regular action from a group G. We say X is G-unirational if there exists a dominant G-equivariant rational map from a linear G-representation V to X. This notion is closely related to unirationality over non-closed fields and the group cohomology of G. … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260331T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260331T153000 DTEND;TZID=America/Denver:20260331T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260402T160000-vasudevan-srinivas@math.utah.edu DTSTART;TZID=America/Denver:20260402T160000 DTEND;TZID=America/Denver:20260402T170000 DTSTAMP:20260819T205508Z SUMMARY:Colloquium DESCRIPTION:Speaker: Vasudevan Srinivas\, SUNY Buffalo and TIFR\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260403T140000-vasudevan-srinivas@math.utah.edu DTSTART;TZID=America/Denver:20260403T140000 DTEND;TZID=America/Denver:20260403T150000 DTSTAMP:20260819T205508Z SUMMARY:Some finiteness results for étale fundamental groups in positive characteristics DESCRIPTION:Speaker: Vasudevan Srinivas\, SUNY Buffalo and TIFR\n\nThis talk will discuss some results on etale fundamental groups of varieties over an algebraically closed field of characteristic p > 0, based on joint work with Hélène Esnault and other coauthors. One result, along with Mark Schusterman, is that the tame fundamental group is finitely presented for … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260407T160000-y.p.-lee@math.utah.edu DTSTART;TZID=America/Denver:20260407T160000 DTEND;TZID=America/Denver:20260407T170000 DTSTAMP:20260819T205508Z SUMMARY:Quantum elliptic cohomology: a progress report DESCRIPTION:Speaker: Y.P. Lee\, Academia Sinica and Utah\n\nAmong the generalized cohomology theories associated to 1-dimensional (formal) groups are ordinary cohomology (G_a), complex K-theory (G_m), and elliptic cohomology (elliptic curve). In the late 1980s and early 1990s, physicists initiated quantum cohomology (Gromov-Witten theory) as the enumerative … LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260414T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260414T153000 DTEND;TZID=America/Denver:20260414T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT BEGIN:VEVENT UID:20260421T153000-tba@math.utah.edu DTSTART;TZID=America/Denver:20260421T153000 DTEND;TZID=America/Denver:20260421T163000 DTSTAMP:20260819T205508Z SUMMARY:TBA DESCRIPTION:Speaker: TBA\n\n LOCATION:LCB 215 URL:http://math.utah.edu/agseminar/2026-spring/ END:VEVENT END:VCALENDAR