1 citations · 1 across the 4 of their papers we have counts for
5 papers
An obstruction to the local lifting problem
Aristides Kontogeorgis, Alexios Terezakis
We are investigating the lifting problem for local actions involving semidirect products of a cyclic -group with a cyclic group prime to , where represents the characteri…
On the lifting problem of representations of a metacyclic group
Aristides Kontogeorgis, Alexios Terezakis
We give a necessary and sufficient condition for a modular representation of a group in a field of characteristic zero to be lifted to a representation over…
The canonical ideal and the deformation theory of curves with automorphisms
Aristides Kontogeorgis, Alexios Terezakis
The deformation theory of curves is studied by using the canonical ideal. The problem of lifting curves with automorphisms is reduced to a lifting problem of linear representations…
Automorphisms and the canonical ideal
Aristides Kontogeorgis, Alexios Terezakis, Ioannis Tsouknidas
The automorphism group of a curve is studied from the viewpoint of the canonical embedding and Petri's theorem. A criterion for identifying the automorphism group as an algebraic s…
Open, convex, unbounded sets in normed spaces
D. Moshonas, V. Nestoridis, A. Terezakis
Let X be a normed linear space. We examine if every open, convex and unbounded subset of X is equal to the union of a family of open straight half lines. The answer is affirmative…