Cremona transformations

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1 total messages Started by Allan Adler Sun, 24 Jan 1993 20:10

#186

Author: Allan Adler
Date: Sun, 24 Jan 1993 20:10

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Let X be a variety and f:X-->X a birational automorphism. Can one find
a complete model Y of the function field of X such that f becomes
an actual automorphism of Y (i.e. defined everywhere and its inverse
is defined everywhere)? Can one take Y to be projective?

Allan Adler
ara@altdorf.ai.mit.edu

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