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DTSTART;TZID=Europe/Sofia:20210604T130000
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CREATED:20210530T130306Z
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UID:10700-1622811600-1622817000@math.bas.bg
SUMMARY:Семинар "Алгебра и логика"
DESCRIPTION:На 4 юни 2021 г. (петък) от 13:00 часа ще се проведе дистанционно заседание на семинара “Алгебра и логика”. \nДоклад на тема \nSchur’s exponent conjecture\nще изнесе Michael Vaughan-Lee (Oxford University Mathematical Institute\, United Kingdom). \nРезюме. If G is a finite group and we write G = F/R where F is a free group\, then the Schur multiplier M(G) is (R \cap F’)/[R\, F]. \nThere is a long-standing conjecture attributed to I. Schur that the exponent of M(G) divides the exponent of G. It is easy to show that this is true for groups G of exponent 2 or exponent 3\, but it has been known since 1974 that the conjecture fails for exponent 4. However the truth or otherwise of this conjecture has remained open up till now for groups of odd exponent.\n\nIn my talk I describe counterexamples to the conjecture of exponent 5 and exponent 9.\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: June 04\, 2021 01:00 PM Sofia\nMeeting ID: 851 3737 5021\nPasscode: 035647\n  \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%b0-53/
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
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