$\delta$-invariants of Du Val del Pezzo surfaces of degree 2

Abstract

In this article, we compute $\delta$-invariants of Du Val del Pezzo surfaces of degree 2.

This is the third paper in the series of articles. Other parts: arXiv:2304.11412 (degrees 8,7,6,5,4), arXiv:2311.14181 (degree 3), arXiv:2410.19853 (degree 1) v3:60 pages, minor corrections