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SUMMARY:Elements of finite order in the Cremona group over perfect fields 
 - Igor Dolgachev (Michigan)
DTSTART:20080326T150000Z
DTEND:20080326T160000Z
UID:TALK11388@talks.cam.ac.uk
CONTACT:7285
DESCRIPTION:I will discuss my recent work with V. Iskovskikh on elements o
 f finite order in the Cremona group of birational automorphisms of the pro
 jective plane over an arbitrary perfect field K (in algebraic terms this i
 s the group of automorphisms of the field of rational functions in two var
 iables with coefficients in K).  Special interesting cases are the cases w
 hen K = Q or a finite field.\n\n
LOCATION:MR9
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