Andreas Distler

activity

20122025

most citedThe semigroups of order 9 and their automorphism groups

14 citations · 31 across the 10 of their papers we have counts for

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2 papers · 1 filter

math.GR2014

Group extensions with special properties

Andreas Distler, Bettina Eick

Given a group G and a G-module A, we show how to determine up to isomorphism the extensions E of A by G so that A embeds as smallest non-trivial term of the derived series or of th…

math.GR2013

$J^{} = D^{}$ need not hold in finite semigroups

Andreas Distler, Victor Maltcev, Abdullahi Umar

We provide an example of minimum size of a finite semigroup with $J^{*} \neq = D^{*}$ . We introduce the notion of starred stability and prove that every starr…

Group extensions with special properties

J∗=D∗ need not hold in finite semigroups

$J^{} = D^{}$ need not hold in finite semigroups