On the finiteness theorem for rational maps on a variety of general type

Details On the finiteness theorem for rational maps on a variety of general type On the finiteness theorem for rational maps on a variety of general type

2008-07-18

arxiv.org/abs/0807.2980v2

Mathematics

Algebraic Geometry

20 pages, to appear in Collectanea Mathematica

Scientific paper

The dominant rational maps of finite degree from a fixed variety to varieties of general type, up to birational isomorphisms, form a finite set. This has been known as the Iitaka-Severi conjecture, and is nowdays an established result, in virtue of some recent advances in the theory of pluricanonical maps. We study the question of finding some effective estimate for the finite number of maps, and to this aim we provide some update and refinement of the classical treatment of the subject.

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