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 .

**References**

Canfield, E. R.; Corteel, S.; and Savage, C. D. ``Durfee Polynomials.'' *Electronic J. Combinatorics* **5**, No. 1, R32, 1-21, 1998.
http://www.combinatorics.org/Volume_5/v5i1toc.html#R32.

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1999-05-24