{ "id": "1101.5071", "version": "v2", "published": "2011-01-26T14:47:11.000Z", "updated": "2011-04-22T16:57:50.000Z", "title": "On bar lengths in partitions", "authors": [ "Jean-Baptiste Gramain", "Jorn B. Olsson" ], "journal": "Proceedings of the Edinburgh Mathematical Society, Vol 55 (2012), 1-16", "categories": [ "math.CO", "math.RT" ], "abstract": "In this paper, we present, given a odd integer $d$, a decomposition of the multiset of bar lengths of a bar partition $\\lambda$ as the union of two multisets, one consisting of the bar lengths in its $\\bar{d}$-core partition $\\bar{c}_d(\\lambda)$ and the other consisting of modified bar lengths in its $\\bar{d}$-quotient partition. In particular, we obtain that the multiset of bar lengths in $\\bar{c}_d(\\lambda)$ is a sub-multiset of the multiset of bar lengths in $\\lambda$. Also we obtain a relative bar formula for the degrees of spin characters of the Schur extensions of the symmetric group. The proof involves a recent similar result for partitions, proved in [1].", "revisions": [ { "version": "v2", "updated": "2011-04-22T16:57:50.000Z" } ], "analyses": { "subjects": [ "20C30", "20C15", "20C20" ], "keywords": [ "odd integer", "core partition", "modified bar lengths", "similar result", "bar partition" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }