Quantum modular forms and singular combinatorial series with repeated roots of unity

Amanda Folsom, Min-Joo Jang, Sam Kimport +1

In 2007, G.E. Andrews introduced the $(n+1)$-variable combinatorial generating function $R_n(x_1,x_2,\cdots ,x_n;q)$ for ranks of $n$-marked Durfee symbols, an $(n+1)$-dimensional m…