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学术讲座

    数学与统计学院2024年第16期学术论坛

    发布时间:2024-11-12 浏览量:

    报告题目:On isomorphisms of Cayley digraphs and bi-Cayley graphs

    报告人:谢金华

    时间:2024年11月15日(周五)14:30-16:30

    地点:豁然楼A510



    内容简介:

    Let m be a positive integer. A group G is said to be an m-DCI-group or an m-BCI-group if G has the k-DCI property or k-BCI property for all positive integers k at most m, respectively. Begun with a conjecture proposed by Adam in 1967, finite m-DCI-groups have been extensively studied for over fifty years. Subsequently, finite m-BCI-groups has also been extensively studied by scholars. In this talk, we discuss some isomorphic problems of Cayley digraphs and bi-Cayley graphs over some given groups.


    报告题目:A complete classification of shuffle groups

    报告人:张志硕

    时间:2024年11月15日(周五)14:30-16:30

    地点:豁然楼A510



    内容简介:

    For positive integers k and n, the shuffle group Gk,kn is generated by the k! permutations of a deck of kn cards performed by cutting the deck into k piles with n cards in each pile, and then perfectly interleaving these cards following a certain permutation of the k piles. In this talk, we present a complete classification of shuffle groups and discuss。



    数学与统计学院

    2024年11月12日




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