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    【創(chuàng)源大講堂學(xué)術(shù)講座】On set-valued means

    2024-09-02 劉鎏 點(diǎn)擊:[]

    講座題目:On set-valued means

    報(bào)告人:Kazimierz Nikodem 教授(University of Bielsko-Bia?a)

    講座時(shí)間:2024年9月9日(星期一)15:30-16:30

    講座地點(diǎn):犀浦校區(qū)3號(hào)教學(xué)樓X30456

    報(bào)告人簡(jiǎn)介:Kazimierz Nikodem 教授于1977年獲得Silesian大學(xué)數(shù)學(xué)碩士學(xué)位;1981年獲得Silesian大學(xué)數(shù)學(xué)博士學(xué)位;2001年被評(píng)為正教授。現(xiàn)任Bielsko-Bia?a大學(xué)數(shù)學(xué)系主任,曾任Bielsko-Bia?a大學(xué)副校長(zhǎng)。目前已在 Proc. Amer. Math. Soc., Nonlinear Anal., J. Convex Anal., Ann. Polon. Math.等數(shù)學(xué)期刊上發(fā)表110余篇文章,參加超過90場(chǎng)國(guó)內(nèi)外國(guó)際討論會(huì)會(huì)議,主要研究領(lǐng)域有凸分析、泛函方程和不等式、集值函數(shù)。

    講座內(nèi)容簡(jiǎn)介:Let X be a real vector space and D be a convex nonempty subset of X. Denote by S(D) the family of all nonempty subsets of D. We say that a function M : Dn→S(D) is a set-valued mean if M (x1, . . . , xn ) ? conv{x1, . . . , xn } for all x1 , . . . , xn in D. The set-valued means Mt : Dn → S(D) de?ned by

    Mt (x1, . . . , xn ) = tconv{x1, . . . , xn } + (1 ? t) x,

    where t ∈ [0, 1] and x =(x1 +· · ·+xn ), are investigated and various properties of them are presented. Set-valued counterparts of the quasi-arithmetic and Lagrangian means are considered.

    主辦:研究生院

    承辦:kaiyun開云官方網(wǎng)站

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