I know what is an elliptic surface, and I also know what is a Rational surface. However I can't find the definition of Rational elliptic surface. Can any one help me?
I read this on the Kulikov classification theorem of the central fibre of a semi-stable family of K3 surfaces.
Thanks.
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$\begingroup$See this paper (Heckman+Looijenga), first paragraph.
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