Título: Automorphisms of k*-surfaces

Palestrante: Jürgen Hausen (Eberhard Karls University of Tübingen)
Data: 12 November, 2020 (Thursday)
Horário: 16:00 GMT (13h BRT)
Local: Transmissão online

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Resumo: After recalling the necessary background on k*-surfaces, we give a complete description of the automorhpism group of a non-toric rational normal projective k*-surface in terms of isotropy group orders and self intersection numbers of suitable invariant curves. We also discuss the basic ingredients and ideas of the proof.

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