2 citations · 4 across the 6 of their papers we have counts for
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Nodal Enriques surfaces are Reye congruences
Gebhard Martin, Giacomo Mezzedimi, Davide Cesare Veniani
We show that every classical Enriques surface containing a smooth rational curve is a Reye congruence.
Bounding geometrically integral del Pezzo surfaces
Fabio Bernasconi, Gebhard Martin
We prove several boundedness statements for geometrically integral normal del Pezzo surfaces over arbitrary fields. We give an explicit sharp bound on the irregularity if i…
Automorphisms of del Pezzo surfaces in odd characteristic
Igor Dolgachev, Gebhard Martin
We complete the classification of automorphism groups of del Pezzo surfaces over algebraically closed fields of odd positive characteristic.
Automorphisms of del Pezzo surfaces in characteristic 2
Igor Dolgachev, Gebhard Martin
We classify the automorphism groups of del Pezzo surfaces of degrees one and two over an algebraically closed field of characteristic two. This finishes the classification of autom…
RDP del Pezzo surfaces with global vector fields in odd characteristic
Gebhard Martin, Claudia Stadlmayr
We classify RDP del Pezzo surfaces with global vector fields over arbitrary algebraically closed fields of characteristic . In characteristic , every RDP del Pezzo sur…
Automorphism groups of rational elliptic and quasi-elliptic surfaces in all characteristics
Igor Dolgachev, Gebhard Martin
We study the groups of automorphisms of rational algebraic surfaces that admit a relatively minimal pencil of curves of arithmetic genus one over an algebraically closed field of a…