Webs of rational curves on real surfaces and a classification of real weak del Pezzo surfaces

Abstract

We classify webs of minimal degree rational curves on surfaces and give a criterion for webs being hexagonal. In addition, we classify Neron-Severi lattices of real weak del Pezzo surfaces. These two classifications are related to root subsystems of E8.

References in corpus (1)

• Minimal degree rational curves on real surfaces

Cited by in corpus (2)

• Surfaces that are covered by two pencils of circles
• Self-intersections of surfaces that contain two circles through each point