BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Institute of Mathematics and Informatics - ECPv6.0.8//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-ORIGINAL-URL:https://math.bas.bg
X-WR-CALDESC:Събития за Institute of Mathematics and Informatics
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/Sofia
BEGIN:DAYLIGHT
TZOFFSETFROM:+0200
TZOFFSETTO:+0300
TZNAME:EEST
DTSTART:20220327T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0300
TZOFFSETTO:+0200
TZNAME:EET
DTSTART:20221030T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/Sofia:20220401T130000
DTEND;TZID=Europe/Sofia:20220401T143000
DTSTAMP:20260625T220901
CREATED:20220328T054737Z
LAST-MODIFIED:20220328T054737Z
UID:12103-1648818000-1648823400@math.bas.bg
SUMMARY:Семинар "Алгебра и логика"
DESCRIPTION:На 1 април 2022 г. (петък) от 13:00 ч. ще се проведе дистанционно заседание на семинара по „Алгебра и логика”. \nДоклад на тема: \nAutomorphisms of simple quotients of the Poisson and universal enveloping algebras of sl_2\nще изнесе Altyngul Naurazbekova (L. N. Gumilyov Eurasian National University\, Nur-Sultan\, Kazakhstan). \nРезюме. Let P(sl_2(K)) be the Poisson enveloping algebra of the Lie algebra sl_2(K) over an algebraically closed field K of characteristic zero. U. Umirbaev\, V. Zhelyabin proved that the quotient algebras P(sl_2(K))/(C_P – λ)\, where C_P is the standard Casimir element of sl_2(K) in P(sl_2(K)) and 0 ≠ λ ∈K\, are simple. Using a result by L. Makar-Limanov on groups of automorphisms of a class of surfaces\, we describe generators of the automorphism group of P(sl_2(K))/(C_P – λ) and represent this group as an amalgamated product of its subgroups. Moreover\, using similar results by J. Dixmier and O. Fleury for the quotient algebras U(sl_2(K))/(C_U – λ)\, where C_U is the standard Casimir element of sl_2(K) in the universal enveloping algebra U(sl_2(K))\, we prove that the automorphism groups of P(sl_2(K))/(C_P – λ) and U(sl_2(K))/(C_U – λ) are isomorphic.This is a joint work with professor U. Umirbaev. \n\n  \nСеминарът ще се проведе посредством платформата Zoom и всеки желаещ може да се присъедини като последва линка: \nhttps://us02web.zoom.us/j/85137375021?pwd=RE5QczdFTE1xL1R6MnI2b1lkcGczQT09 \nTopic: Онлайн семинар на секция “Алгебра и логика”\nTime: Apr 1\, 2022 01:00 PM Sofia\nMeeting ID: 851 3737 5021\nPasscode: 035647 \nОт секция „Алгебра и логика” на ИМИ – БАН\nhttp://www.math.bas.bg/algebra/seminarAiL/\n============================== =====================
URL:https://math.bas.bg/event/%d1%81%d0%b5%d0%bc%d0%b8%d0%bd%d0%b0%d1%80-%d0%b0%d0%bb%d0%b3%d0%b5%d0%b1%d1%80%d0%b0-%d0%b8-%d0%bb%d0%be%d0%b3%d0%b8%d0%ba%d0%b0-75/
LOCATION:Zoom
CATEGORIES:Редовен семинар
ORGANIZER;CN="%D0%A1%D0%B5%D0%BA%D1%86%D0%B8%D1%8F%20%D0%90%D0%BB%D0%B3%D0%B5%D0%B1%D1%80%D0%B0%20%D0%B8%20%D0%BB%D0%BE%D0%B3%D0%B8%D0%BA%D0%B0":MAILTO:algebra_logic_seminar@math.bas.bg
END:VEVENT
END:VCALENDAR