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math.CO2023
An extension to "A subsemigroup of the rook monoid"
George Fikioris, Giannis Fikioris
A recent paper studied an inverse submonoid of the rook monoid, by representing the nonzero elements of via certain triplets belonging to . In this short…
math.CO2021
A subsemigroup of the rook monoid
George Fikioris, Giannis Fikioris
We define a subsemigroup of the rook monoid and investigate its properties. To do this, we represent the nonzero elements of (which are matrices) via…