5 citations · 7 across the 6 of their papers we have counts for
6 papers
Transfer and Norm for Finite Group Schemes
Kostas Karagiannis, Peter Symonds
We develop the theory of transfer and norm maps for finite group schemes, extending classical results from finite group theory to a context where induction and restriction are not…
Equivariant Koszul Cohomology of Canonical Curves
Kostas Karagiannis, Aristides Kontogeorgis, Konstantia Manousou Sotiropoulou
This paper investigates the representation-theoretic structure of the Koszul cohomology of a smooth projective variety over an algebraically closed field , admitting an acti…
Representations on canonical models of generalized Fermat curves and their syzygies
Kostas Karagiannis
We study canonical models of - covers of the projective line, tamely ramified at exactly points each of index , when and…
The equivariant Hilbert series of the canonical ring of Fermat curves
Hara Charalambous, Kostas Karagiannis, Sotiris Karanikolopoulos +1
We consider a Fermat curve over an algebraically closed field of characteristic and study the action of the automorphism group $G=\left(\mathbb{Z}/…
Local Oort groups and the isolated differential data criterion
Huy Dang, Soumyadip Das, Kostas Karagiannis +2
It is conjectured that if k is an algebraically closed field of characteristic p > 0, then any branched G-cover of smooth projective k-curves where the "KGB" obstruction vanishes a…
The Relative Canonical Ideal of the Artin-Schreier-Kummer-Witt family of curves
Hara Charalambous, Kostas Karagiannis, Aristides Kontogeorgis
We study the canonical model of the Artin-Schreier-Kummer-Witt flat family of curves over a ring of mixed characteristic. We first prove the relative version of a classical theorem…