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DTSTART;TZID=Europe/Sofia:20251202T130000
DTEND;TZID=Europe/Sofia:20251202T160000
DTSTAMP:20260612T182802
CREATED:20251202T105711Z
LAST-MODIFIED:20251202T105711Z
UID:18623-1764680400-1764691200@math.bas.bg
SUMMARY:Семинар на МЦМН и съвместно заседание със семинара АГТ
DESCRIPTION:Следващото заседание на семинара на МЦМН ще се състои във вторник\, 2 декември 2025 г. Доклади ще изнесат Рой Маген от МЦМН и Ливиу Орнеа от Букурещския университет\, като вторият доклад е в рамките на съвместно заседание със семинара на секция “Анализ\, Геометрия и Топология”. Програмата е следната.\n\nICMS Seminar and AGT Seminar\n\nTuesday\, December 2nd\, room 403 IMI-BAS. \n\n\n13:00 — Roy Magen (ICMS\, IMI-BAS) \n\n Flavours of homotopy theory \n\n\n14:00 — Liviu Ornea (University of Bucarest) \n\n Distinguished non-Kähler metrics on compact complex manifolds \n\nAbstract (Magen): \n   In this talk we will consider different flavours of homotopy theory for different types of geometric contexts. First we will recall the usual definitions of the homotopy category\, and equivariant homotopy categories\, and we will show how we can think of these in terms of (equivariant) smooth manifolds. This will give us a suitable framework with which to adapt the notion of homotopy theory to different geometries.\nWe first use this framework to give a brief overview of the story in algebraic geometry\, which produces motivic homotopy theory. Next\, we will use our framework to discuss notions of homotopy theories parametrized by a geometric object\, and discuss some consequences.\nDepending on time constraints and interest\, we will end either by discussing work relating this homotopical framework to 6-functor formalisms\, by going over a version of this story in the complex analytic setting\, or by introducing C∞-schemes and discussing possibilities for an extension of the story for manifolds to this setting. \nAbstract (Ornea):\n\n   I shall review the definitions of LCK\, pluriclosed and balanced metrics and discuss their incompatibility on the same compact complex manifold.
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-%d0%b8-%d1%81%d1%8a%d0%b2%d0%bc%d0%b5%d1%81%d1%82%d0%bd%d0%be-%d0%b7%d0%b0%d1%81%d0%b5%d0%b4%d0%b0%d0%bd%d0%b8%d0%b5/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
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DTSTART;TZID=Europe/Sofia:20260602T130000
DTEND;TZID=Europe/Sofia:20260602T143000
DTSTAMP:20260612T182802
CREATED:20260527T072127Z
LAST-MODIFIED:20260527T072127Z
UID:19431-1780405200-1780410600@math.bas.bg
SUMMARY:Съвместен семинар на МЦМН и секция АГТ
DESCRIPTION:Date and time: Tuesday\, June 2-nd\, 2026\, 13:00\, room 403 IMI-BAS \nLecturer: Bogdan Djordjevic\, (Serbian Academy of Arts and Sciences\, visitor at ICMS\, IMI-BAS) \nTitle: Application of the Laplace transform for evaluating sums of hyperharmonic-like series in Banach algebras and modules \nAbstract: In this talk it will be shown how the Laplace transform (in respective Banach spaces) can be utilized for evaluating sums of Banach-space-valued series. We demonstrate the technique on various abstract generalizations of the numerical hyperharmonic series\, including noncommutative setting and non-invertible setting. As an application\, we obtain new necessary consistency condition for the Sylvester equation \(\)ax-xb=c[\latex].
URL:https://math.bas.bg/event/%d1%81%d1%8a%d0%b2%d0%bc%d0%b5%d1%81%d1%82%d0%b5%d0%bd-%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-%d0%b8-%d1%81%d0%b5%d0%ba%d1%86%d0%b8%d1%8f-%d0%b0%d0%b3%d1%82-3/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
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