10 citations · 19 across the 4 of their papers we have counts for
4 papers
Unitary Groups as Stabilizers of Orbits
Erik Friese
We show that a finite unitary group which has orbits spanning the whole space is necessarily the setwise stabilizer of a certain orbit.
Classification of Affine Symmetry Groups of Orbit Polytopes
Erik Friese, Frieder Ladisch
Let be a finite group acting linearly on a vector space . We consider the linear symmetry groups of orbits , where the \emph{linear sy…
Efficient Domination for Some Subclasses of -Free Graphs in Polynomial Time
Andreas Brandstädt, Elaine M. Eschen, Erik Friese
Let be a finite undirected graph. A vertex {\em dominates} itself and all its neighbors in . A vertex set is an {\em efficient dominating set} (\emph{e.d.}\ for short) o…
Affine Symmetries of Orbit Polytopes
Erik Friese, Frieder Ladisch
An orbit polytope is the convex hull of an orbit under a finite group . We develop a general theory of possible affine symmetry groups of or…