On the sign-imbalance of skew partition shapes

Details On the sign-imbalance of skew partition shapes On the sign-imbalance of skew partition shapes

2005-07-16

arxiv.org/abs/math/0507338v2

Mathematics

Combinatorics

14 pages; former section 8 is removed and the rest is slightly updated

Scientific paper

Let the sign of a skew standard Young tableau be the sign of the permutation you get by reading it row by row from left to right, like a book. We examine how the sign property is transferred by the skew Robinson-Schensted correspondence invented by Sagan and Stanley. The result is a remarkably simple generalization of the ordinary non-skew formula. The sum of the signs of all standard tableaux on a given skew shape is the sign-imbalance of that shape. We generalize previous results on the sign-imbalance of ordinary partition shapes to skew ones.

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