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X-WR-CALNAME:Institute of Mathematics and Informatics
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X-WR-CALDESC:Събития за Institute of Mathematics and Informatics
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DTSTART;TZID=Europe/Sofia:20240314T140000
DTEND;TZID=Europe/Sofia:20240314T153000
DTSTAMP:20260419T185947
CREATED:20240311T230335Z
LAST-MODIFIED:20240311T230335Z
UID:16014-1710424800-1710430200@math.bas.bg
SUMMARY:Семинар на МЦМН
DESCRIPTION:Дата: 14.03.2024 г.\, 14:00 ч. \nМясто: Зала 403\, ИМИ – БАН \nДокладчик: Morgan Brown  (University of Miami) \nДоклад: Cox rings and characterization of toric varieties \nДопълнителна информация: https://icms.bg/the-cox-ring-perspective-in-birational-geometry-talk-by-morgan-brown/ \nРезюме. Recently Moraga and Svaldi proved a conjecture of Shokoruv\, characterizing in the relative case toroidal morphisms as those which admit divisors with many components relative to the Picard rank. I will discuss the global version\, proved in previous joint work with McKernan\, Svaldi and Zong. The proof relies on characterizing the singularity type of the Cox ring\, giving another example of the use of these invariants in birational geometry.
URL:https://math.bas.bg/event/%d1%81%d0%b5%d0%bc%d0%b8%d0%bd%d0%b0%d1%80-%d0%bd%d0%b0-%d0%bc%d1%86%d0%bc%d0%bd-22/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
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