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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| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Discrete Mathematics & Theoretical Computer Science
2012-01-01
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| Serier: | Discrete Mathematics & Theoretical Computer Science |
| Fag: | |
| Online adgang: | https://dmtcs.episciences.org/3074/pdf |
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