Riordan Arrays

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A symbolic operator approach to several summation formulas for power series II, Discrete Mathematics (2008)
Here expounded is a kind of symbolic operator method that can be used to construct...
 

symbolic operator

Link

A symbolic operator approach to several summation formulas for power series II, Discrete Mathematics (2008)
Here expounded is a kind of symbolic operator method that can be used to construct...
 

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The Sheffer Group and the Riordan Group, Discrete Applied Math (2007)