Partitions and bipartitions with even parts distinct;
Congruences;
Binary quadratic forms;
D O I:
10.1016/j.disc.2014.10.013
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Let ped(n) denote the number of partitions of n wherein even parts are distinct (and odd parts are unrestricted). We show infinite families of congruences for ped(n) modulo 8. We also examine the behavior of ped(-2)(n) modulo 8 in detail where ped(-2)(n) denotes the number of bipartitions of n with even parts distinct. As a result, we find infinite families of congruences for ped(-2)(n) modulo 8. (C) 2014 Elsevier B.V. All rights reserved.
机构:
Hangzhou Polytech, Hangzhou 311402, Peoples R China
East China Normal Univ, Sch Math Sci, Shanghai 200241, Peoples R ChinaHangzhou Polytech, Hangzhou 311402, Peoples R China