We de ne an analog of signed Eulerian numbers fn;k for involutions of the symmetric group and derive some combinatorial properties of this sequence. In particular, we exhibit both an explicit formula and a recurrence for f_{n,k} arising from the properties of its generating function.
Titolo: | The signed Eulerian Numbers on Involutions |
Autore/i: | BARNABEI, MARILENA; BONETTI, FLAVIO; SILIMBANI, MATTEO |
Autore/i Unibo: | |
Anno: | 2008 |
Rivista: | |
Abstract: | We de ne an analog of signed Eulerian numbers fn;k for involutions of the symmetric group and derive some combinatorial properties of this sequence. In particular, we exhibit both an explicit formula and a recurrence for f_{n,k} arising from the properties of its generating function. |
Data prodotto definitivo in UGOV: | 2009-11-17 11:37:35 |
Appare nelle tipologie: | 1.01 Articolo in rivista |
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