A note on degenerations of del Pezzo surfaces

Details A note on degenerations of del Pezzo surfaces A note on degenerations of del Pezzo surfaces

2011-08-25

arxiv.org/abs/1108.5051v1

Mathematics

Algebraic Geometry

16 pages, LaTeX

Scientific paper

We prove that for a Q-Gorenstein degeneration $X$ of del Pezzo surfaces, the
number of non-Du Val singularities is at most $\rho(X)+2$. Degenerations with
$\rho(X)+2$ and $\rho(X)+1$ non-Du Val points are investigated.

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