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On pseudo-involutions, involutions and quasi-involutions in the group of almost Riordan arrays
Published 11 Jan 2019 in math.CO | (1901.03734v1)
Abstract: The group of almost Riordan arrays contains the group of Riordan arrays as a subgroup. In this note, we exhibit examples of pseudo-involutions, involutions and quasi-involutions in the group of almost Riordan arrays.
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