Excedance Numbers for the Permutations of Type B

[摘要] This work provides a study on the multidistribution of type $B$ excedances, fixed points and cycles on the permutations of type $B$. We derive the recurrences and closed formulas for the distribution of signed excedances on type $B$ permutations as well a

[学科分类] 离散数学和组合数学

[关键词] type $B$ permutation;type $B$ excedance;type $B$ derangement;fixed point;cycle;Euler number;Springer number