数学与统计学院2024年第16期学术论坛-876cc棋牌

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