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DTSTART;TZID=Europe/Sofia:20230606T150000
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DTSTAMP:20260407T235721
CREATED:20230604T184921Z
LAST-MODIFIED:20230604T184921Z
UID:14497-1686063600-1686069000@math.bas.bg
SUMMARY:Колоквиум на МЦМН
DESCRIPTION:Във вторник\, 06.06.2023 г.\, от 15:00 часа в зала 403 ще състои поредната сбирка на колоквиума на\nМеждународния център за математически науки.\nДоклад на тема:\nArc spaces and partition identities\nще изнесе Hussein Mourtada (Institut de Mathématiques de Jussieu-Paris Rive Gauche).\n\n\nАбстракт
URL:https://math.bas.bg/event/%d0%ba%d0%be%d0%bb%d0%be%d0%ba%d0%b2%d0%b8%d1%83%d0%bc-%d0%bd%d0%b0-%d0%bc%d1%86%d0%bc%d0%bd/
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:20230606T173000
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DTSTAMP:20260407T235721
CREATED:20230601T073209Z
LAST-MODIFIED:20230601T073537Z
UID:14459-1686072600-1686078000@math.bas.bg
SUMMARY:Семинар по Приложна математика
DESCRIPTION:Minimax problems and results for sum of translates functions\nАвтори: Bálint Farkas\, Béla Nagy and Szilárd Révész\, Alfréd Rényi Institute of Mathematics\nДата: 06.06.2023 г.\nЧас: 17:30 ч.\nМясто: Зала 503 на ИМИ-БАН \nРезюме: We introduce a general framework to investigate minimax problems for sum of translates functions \nF(x\,t)=\sum_k K(t-x_j) or F(x\,t)=J(t)+\sum_k K(t-x_j)\, \nwhere K is a general concave “kernel function” and J is an “outer field” function\, t runs [0\,1]\, and x=(x_1\,…\,x_n) is a set of nodes which are used to translate the kernel. \nOur setup is very close to logarithmic potential theory\, but fixing n and focusing on a more detailed analysis\, we obtain new results even for very classical problems. Extending a method of P. Fenton\, we reach considerable generality while proving precise results for minimax\, maximin and equioscillating node systems\, and the behavior of the local (interval) maxima. One of our main motivations is to generalize Bojanov’s theorem about the variant of the Chebyshev problem with prescribed zero multiplicities. In particular\, we derive a weighted generalization with surprisingly general weights. \nФейсбук страница на семинара: Семинар по Приложна математика
URL:https://math.bas.bg/event/%d1%81%d0%b5%d0%bc%d0%b8%d0%bd%d0%b0%d1%80-%d0%bf%d0%be-%d0%bf%d1%80%d0%b8%d0%bb%d0%be%d0%b6%d0%bd%d0%b0-%d0%bc%d0%b0%d1%82%d0%b5%d0%bc%d0%b0%d1%82%d0%b8%d0%ba%d0%b0-5/
LOCATION:Институт по математика и информатика – БАН\, Block 8\, 1113 БАН IV км.\, София\, Bulgaria
CATEGORIES:Редовен семинар
ORGANIZER;CN="%D0%98%D0%BD%D1%81%D1%82%D0%B8%D1%82%D1%83%D1%82%20%D0%BF%D0%BE%20%D0%BC%D0%B0%D1%82%D0%B5%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0%20%D0%B8%20%D0%B8%D0%BD%D1%84%D0%BE%D1%80%D0%BC%D0%B0%D1%82%D0%B8%D0%BA%D0%B0%20-%20%D0%91%D0%90%D0%9D":MAILTO:office@math.bas.bg
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