Counting involutory, unimodal, and alternating signed permutations
نویسنده
چکیده
In this work we count the number of involutory, unimodal, and alternating elements of the group of signed permutations Bn, and the group of even-signed permutations Dn. Recurrence relations, generating functions, and explicit formulas of the enumerating sequences are given. © 2006 Elsevier B.V. All rights reserved. MSC: primary: 05A15; secondary: 05A19; 05A05
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ورودعنوان ژورنال:
- Discrete Mathematics
دوره 306 شماره
صفحات -
تاریخ انتشار 2006