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A surface with discrete, non-finitely generated automorphism group (following T.-C. Dinh and K. Oguiso) Dmitry Mineev National Research University "Higher School of Economics" (HSE), Moscow |
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Abstract: This is a sequel of the talk about 6-dimensional variety satisfying these properties constructed by J. Lesieutre. We will present a triple consisting of K3-surface, rational curve and a point on it such that automorphisms with trivial differentials on tangent line to this curve at this point are not finitely generated, and some other conditions are satisfied. The blow-up of this surface and its product with suitable varieties yields the desired series of examples. As in the previous talk, this construction will also turn out to provide infinitely many |
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