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math.RT2026
Integral quiver presentations for -trivial semigroup algebras
Benjamin Steinberg
Semigroups in which right divisibility is a partial order, that is, -trivial semigroups, have been studied by people in algebraic combinatorics in connection with Marko…
math.RT2026
Quiver presentations for band algebras are defined over the integers
Benjamin Steinberg
A band is a semigroup in which each element is idempotent. In recent years, there has been a lot of activity on the representation theory of the subclass of left regular bands due…