On numerically Gorenstein quasi-simple elliptic singularities with 𝐶*-action

Author:

Tomaru Tadashi

Abstract

Let ( X , x ) (X,x) be a numerically Gorenstein elliptic singularity with C {\mathbb {C}^{\ast }} -action and π : ( X ~ , A ) ( X , x ) \pi :(\tilde X,A) \to (X,x) the minimal good resolution. Assume that the central curve of π \pi is an elliptic curve. We will determine the configuration of the w.d. graph (weighted dual graph) of A A and obtain a condition for ( X , x ) (X,x) to be a maximally elliptic singularity in the sense of Yau.

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference8 articles.

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2. Normal surface singularities with 𝐶* action;Pinkham, H.;Math. Ann.,1977

3. J. P. Serre, Sur les modules projectifs, Sem. Dubreil-Pisot 14 (1960-1961).

4. T. Tomari, Multiplicity of Gorenstein star-shaped singularities with 𝑝ₐ-1, preprint.

5. Cyclic quotients of 2-dimensional quasi-homogeneous hypersurface singularities;Tomaru, Tadashi;Math. Z.,1992

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