Article ID Journal Published Year Pages File Type
4603560 Linear Algebra and its Applications 2008 12 Pages PDF
Abstract

We study involutions in the Riordan group, especially those with combinatorial meaning. We give a new determinantal criterion for a matrix to be a Riordan involution and examine several classes of examples. A complete characterization of involutions in the Appell subgroup is developed. In another direction we find several examples that generalize the RNA matrix but are of independent interest.

Related Topics
Physical Sciences and Engineering Mathematics Algebra and Number Theory