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  • 0 posts edited
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  • 21 votes cast
Apr
20
awarded  Popular Question
Mar
7
comment Flat family: limit of intersection vs intersection of limits
Thanks! This sounds very nice. Why is it true? Is the proof/reasoning written somewhere? In my case, it is hard for me to figure out the degree of the projective embedding, but maybe I can find some other equivalent conditions...
Mar
5
accepted Flat family: limit of intersection vs intersection of limits
Mar
3
asked Flat family: limit of intersection vs intersection of limits
Mar
3
accepted Equi-dimensionality of special fibers in a flat family
Mar
2
asked Equi-dimensionality of special fibers in a flat family
Nov
20
asked Fibers of torus equivariant moment maps
Jun
16
accepted Global Affine Flag Variety and Affine Flag Variety
Jun
4
awarded  Yearling
Jun
4
awarded  Teacher
Jun
2
comment Moment maps and flat degenerations of toric varieties
In your example, the generic fiber is smooth. When the generic fiber is singular, would the moment polytope always stay constant in a flat degeneration over $\mathbb{A}^1$?
May
31
accepted Moment maps and flat degenerations of toric varieties
May
28
asked Moment maps and flat degenerations of toric varieties
Feb
25
revised Intersections of the B-orbits and the orbits of some other Borel subgroups in the flag variety G/B
edited tags
Feb
25
asked Intersections of the B-orbits and the orbits of some other Borel subgroups in the flag variety G/B
Feb
3
revised Global Affine Flag Variety and Affine Flag Variety
added 72 characters in body
Feb
3
answered Global Affine Flag Variety and Affine Flag Variety
Jan
26
comment Global Affine Flag Variety and Affine Flag Variety
Thanks! Is there any references for your comment? Why the family being topologically trivial imply that we could correspond the $T-$fixed points? In the example in my question, a copy of $\mathbb{P}^1$ degenerates to two copies of $\mathbb{P}^1$ glued at a point.
Jan
24
comment Global Affine Flag Variety and Affine Flag Variety
Thanks! I know $Fl$ is topologically trivial, but I am not sure how to make use of that at the moment. As for your comment, what is $K$? Is $T$ the maximal torus in $G$?
Jan
22
awarded  Editor