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Washington State
University
Combinatorics,
Linear Algebra and Number Theory Seminar
Department of
Mathematics and Statistics
Zoom
October 25, Monday, 4:10 - 5:00 PM
Jessica
Dickson
Department of
Mathematics and Statistics
Washington State University
Title: The Transformation of Sequences via Riordan
Arrays
Abstract: Riordan arrays can be thought of as
infinite, lower triangle matrices defined by a pair of
generating functions. In this seminar we discuss the
Fundamental Theorem of Riordan Arrays which describes
how Riordan arrays act on column vectors and how this
is used to form a mapping from one sequence to
another. We then look at new research on how the
addition of Riordan arrays may also be used to
generate similar results.
This seminar includes a
description of my experience at the Graduate Research
Workshop in Combinatorics 2021 where this research was
the result of a joint project with Caroline Bang,
Matias von Bell, Eric Culver, Stoyan Dimitrov, Rachel
Perrier, and Sheila Sundaram.