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math.AG2023
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…
math.AG2019
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…