Weyl and Zariski chambers on projective surfaces

Author:

Hanumanthu Krishna1,Ray Nabanita2

Affiliation:

1. Chennai Mathematical Institute, H1 SIPCOT IT Park, Siruseri, Kelambakkam603103, India

2. School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai400005, India

Abstract

AbstractLet X be a nonsingular complex projective surface. The Weyl and Zariski chambers give two interesting decompositions of the big cone of X. Following the ideas of [T. Bauer and M. Funke, Weyl and Zariski chambers on K3 surfaces, Forum Math. 24 2012, 3, 609–625] and [S. A. Rams and T. Szemberg, When are Zariski chambers numerically determined?, Forum Math. 28 2016, 6, 1159–1166], we study these two decompositions and determine when a Weyl chamber is contained in the interior of a Zariski chamber and vice versa. We also determine when a Weyl chamber can intersect non-trivially with a Zariski chamber.

Publisher

Walter de Gruyter GmbH

Subject

Applied Mathematics,General Mathematics

Reference22 articles.

1. Weyl and Zariski chambers on K3 surfaces;Forum Math.,2012

2. Negative curves on special rational surfaces;Analytic and Algebraic Geometry 3,2019

3. Complete linear systems on rational surfaces;Trans. Amer. Math. Soc.,1985

4. The theorem of Riemann–Roch for high multiples of an effective divisor on an algebraic surface;Ann. of Math. (2),1962

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