Del Pezzo surfaces and Mori fiber spaces in positive characteristic
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DOI: 10.1090/tran/7988
Abstract: We settle a question that originates from results and remarks by Koll\'ar on extremal ray in the minimal model program: In positive characteristics, there are no Mori fibrations on threefolds with only terminal singularities whose… read more here.
Keywords: pezzo surfaces; mori fiber; surfaces mori; del pezzo ... See more keywords
p-Subgroups in Automorphism Groups of Real del Pezzo Surfaces
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DOI: 10.1134/s1064562418020072
Abstract: We classify finite p-groups acting minimally on real del Pezzo surfaces. This gives a partial classification of p-subgroups in the real plane Cremona group. read more here.
Keywords: subgroups automorphism; pezzo surfaces; automorphism groups; real del ... See more keywords