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DTSTART:20250330T010000
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DTSTART;TZID=Europe/Sofia:20250411T160000
DTEND;TZID=Europe/Sofia:20250411T173000
DTSTAMP:20260418T192813
CREATED:20250410T165453Z
LAST-MODIFIED:20250410T165453Z
UID:17619-1744387200-1744392600@math.bas.bg
SUMMARY:Семинар на МЦМН
DESCRIPTION:Дата: 11.04.2025 г.\, 16:00 ч. \nМясто: Зала 403\, ИМИ – БАН \nДокладчик: Felipe Espreafico Guelerman\, Sorbonne Université – Paris \nДоклад: On Motivic and Arithmetic Donaldson-Thomas invariants \nДопълнителна информация: https://icms.bg/category/icms-seminar/ \nРезюме. Aiming to understand the relation to other “refined invariants”\, and especially their possible interpretation in quantum theory\, we explain how to obtain a quadratic\, A1-version of Donaldson-Thomas invariants from the motivic refinements first introduced in Kontsevich-Soibelman. Following ideas from Behrend\, Bryan and Szendroi\, we provide predictions for these invariants in a few simple examples\, mainly the computation of DT invariants of A3. Our main goal is to draw relationships with the literature\, including works of Levine\, Denef and Loser\, Azouri\, Pepin-Lehaulleur\, Srinivas among others. We begin with a brief introduction to A1-enumerative geometry and in the end\, we pose some further questions on possible extensions of our definitions. This is joint work with Johannes Walcher. We also comment on joint work in progress with Ran Azouri.
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-30/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
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