Title of article
Riordan group involutions and the image-sequence Original Research Article
Author/Authors
Gi-Sang Cheon، نويسنده , , Sung-Tae Jin، نويسنده , , Hana Kim، نويسنده , , Louis W. Shapiro، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
6
From page
1696
To page
1701
Abstract
Several important combinatorial arrays, after inserting some minus signs, turn out to be involutions when considered as lower triangular matrices. Among these are the Pascal, RNA, and directed animal matrices. These examples and many others are in the Bell subgroup of the Riordan group. We characterize all such pseudo-involutions by means of a single sequence
Keywords
Riordan matrix , AA , ZZ , and ??-sequences , Pseudo-involution , Bell subgroup
Journal title
Discrete Applied Mathematics
Serial Year
2009
Journal title
Discrete Applied Mathematics
Record number
887103
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