Let be a family of partitions of and let denote the set of partitions in with Durfee square of size . The Durfee polynomial of is then defined as the polynomial
where .
Let be a family of partitions of and let denote the set of partitions in with Durfee square of size . The Durfee polynomial of is then defined as the polynomial
where .
Weisstein, Eric W. "Durfee Polynomial." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/DurfeePolynomial.html