Weyl and Zariski chambers on K3 surfaces
Weyl and Zariski chambers on K3 surfaces
The big cone of every K3 surface admits two natural chamber decompositions: the decomposition into Zariski chambers, and the decomposition into simple Weyl chambers. In the present paper we compare these two decompositions and we study their mutual relationship: First, we give a numerical criterion for the two decompositions to …