Combinatorial proof of an identity of Andrews and Yee

Abstract

Recently, Andrews and Yee studied two-variable generalizations of two identities involving partition functions $p_{\ddot{I}}‰(n)$ and $p_{\hat{I}}½(n)$ introduced by Andrews, Dixit and Yee. In this paper, we present a combinatorial proof of an interesting identity in their work.

To appear in Ramanujan J