Cumulants of the q-semicircular law, Tutte polynomials, and heaps

The q-semicircular law as introduced by Bożejko and Speicher interpolates between the Gaussian law and the semicircular law, and its moments have a combinatorial interpretation in terms of matchings and crossings. We prove that the cumulants of this law are, up to some factor, polynomials in q with...

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發表在:	Discrete Mathematics & Theoretical Computer Science
主要作者:	Matthieu Josuat-Vergès
格式:	Article
語言:	英语
出版:	Discrete Mathematics & Theoretical Computer Science 2012-01-01
主題:	moments cumulants matchings tutte polynomials heaps [info.info-dm] computer science [cs]/discrete mathematics [cs.dm]
在線閱讀:	https://dmtcs.episciences.org/3074/pdf