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edited Apr 3, 2012 at 9:50

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Let G be an affine connected algebraic group. When a subvariety of G with codimension one is a subgroup.

Let G be an affine connected algebraic group, and K[G] be its coordinate ring. Let Y be a subvariety of G defined as a zero set for some f in K[G]. For which f, Y is a closed subgroup of G

ag.algebraic-geometry algebraic-groups

asked Apr 2, 2012 at 23:36

gauss