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Mar 2, 2013 at 16:57 vote accept Vesselin Dimitrov
Feb 18, 2013 at 21:07 history edited Will Sawin CC BY-SA 3.0
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Feb 18, 2013 at 21:06 comment added Will Sawin The Mumford-Tate group of a point is semisimple! More seriously, thanks for the correction.
Feb 18, 2013 at 19:19 comment added Mikhail Borovoi @Will: The Mumford-Tate group should be reductive, and it is never semisimple. For example, the Mumford-Tate group of an abelian variety of CM-type is a torus.
Feb 18, 2013 at 17:03 history edited Will Sawin CC BY-SA 3.0
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Feb 8, 2013 at 16:53 history answered Will Sawin CC BY-SA 3.0