Itamar Stein

activity

20152026

most citedThe algebra of the monoid of order-preserving functions on an

n

-set and other reduced

E

-Fountain semigroups

1 citations · 3 across the 9 of their papers we have counts for

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math.RT2015

Algebras of Ehresmann semigroups and categories

Itamar Stein

$E$ -Ehresmann semigroups are a commonly studied generalization of inverse semigroups. They are closely related to Ehresmann categories in the same way that inverse semigroups are r…

math.RT2015

The representation theory of the monoid of all partial functions on a set and related monoids as EI-category algebras

Itamar Stein

The (ordinary) quiver of an algebra $A$ is a graph that contains information about the algebra's representations. We give a description of the quiver of $C P T_{n}$ , the alg…