User Allen Knutson

8 votes

Occurrence of the trivial representation in restrictions of Lie group representations

answered Mar 21, 2010 at 3:17

8 votes

Octonionic Unitary Group?

answered Jan 5, 2010 at 22:51

7 votes

Accepted

Hilbert scheme of points on a complex surface

answered Jan 29, 2010 at 3:35

7 votes

Matrix representation for $F_4$

answered Feb 26, 2010 at 4:45

7 votes

Outer automorphisms of simple Lie Algebras

answered Feb 9, 2010 at 15:10

7 votes

What are some mathematical sculptures?

answered Jul 20, 2010 at 9:13

7 votes

Accepted

Non-Abelian Duistermaat-Heckman Measure (not just a reference request)

answered Sep 4, 2011 at 13:19

7 votes

Accepted

"geometric" description of the algebra of central functions on a Lie group

answered Jan 23, 2013 at 19:12

7 votes

Accepted

Representations of Finite Subgroups on Homology

answered Feb 16, 2013 at 1:00

7 votes

Accepted

how to compute chern classes of homogeneous vector bundles

answered Apr 7, 2011 at 3:39

7 votes

Lie group examples

answered Apr 13, 2011 at 12:57

7 votes

Non Cohen-Macaulay varieties and Groebner degeneration

answered Apr 2, 2013 at 11:05

7 votes

Accepted

Is there an algorithm to decide if an ideal contains monomials?

answered Apr 5, 2013 at 15:12

7 votes

Interpretation of multiplicity of a point

answered May 5, 2013 at 3:02

7 votes

How to write $\mathbb{C}[G/U_-]=\oplus_{\lambda} V_{\lambda}$ explicitly?

answered May 3, 2016 at 14:41

7 votes

Accepted

How to write down the map $T(V)_n \to S(Lie(V))_n$ explicitly?

answered Feb 26, 2017 at 16:36

6 votes

Is it true that all sphere bundles are some double of disk bundle?

answered May 20, 2016 at 17:38

6 votes

Accepted

Deformation of $\mathbb{P}^1 \times \mathbb{P}^1$

answered May 20, 2016 at 17:51

6 votes

Accepted

Motivating the existence of Canonical Bases for Representations

answered May 26, 2016 at 14:58

6 votes

Accepted

Equi-dimensionality of special fibers in a flat family

answered Mar 2, 2016 at 17:55

6 votes

Accepted

The Hilbert function of an intersection

answered Apr 4, 2013 at 19:23

6 votes

motivating geometric representation theory

answered May 4, 2013 at 14:01

6 votes

Accepted

Simply connectedness of minimal resolution of Kleinian singularities

answered Nov 5, 2013 at 21:13

6 votes

The fundamental group of a complex, quasi-affine variety

answered Sep 25, 2013 at 13:47

6 votes

Fixed submanifold of G-manifold

answered Oct 20, 2013 at 18:15

6 votes

Rational surface singularities as Toric varieties

answered Oct 23, 2013 at 11:11

6 votes

Are there any algebraic geometry theorems that were proved using combinatorics?

answered Mar 27, 2015 at 3:27

6 votes

Langlands duality and multiplying cocharacters

answered Nov 21, 2014 at 3:56

6 votes

Accepted

Intersections of $B$ and $B^-$ orbits in the flag variety $G/B$

answered Jan 14, 2015 at 17:20

6 votes

Accepted

Hilbert scheme of points on a surface

answered Jan 8, 2014 at 22:09

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276 Answers

Occurrence of the trivial representation in restrictions of Lie group representations

Octonionic Unitary Group?

Hilbert scheme of points on a complex surface

Matrix representation for $F_4$

Outer automorphisms of simple Lie Algebras

What are some mathematical sculptures?

Non-Abelian Duistermaat-Heckman Measure (not just a reference request)

"geometric" description of the algebra of central functions on a Lie group

Representations of Finite Subgroups on Homology

how to compute chern classes of homogeneous vector bundles

Lie group examples

Non Cohen-Macaulay varieties and Groebner degeneration

Is there an algorithm to decide if an ideal contains monomials?

Interpretation of multiplicity of a point

How to write $\mathbb{C}[G/U_-]=\oplus_{\lambda} V_{\lambda}$ explicitly?

How to write down the map $T(V)_n \to S(Lie(V))_n$ explicitly?

Is it true that all sphere bundles are some double of disk bundle?

Deformation of $\mathbb{P}^1 \times \mathbb{P}^1$

Motivating the existence of Canonical Bases for Representations

Equi-dimensionality of special fibers in a flat family

The Hilbert function of an intersection

motivating geometric representation theory

Simply connectedness of minimal resolution of Kleinian singularities

The fundamental group of a complex, quasi-affine variety

Fixed submanifold of G-manifold

Rational surface singularities as Toric varieties

Are there any algebraic geometry theorems that were proved using combinatorics?

Langlands duality and multiplying cocharacters

Intersections of $B$ and $B^-$ orbits in the flag variety $G/B$

Hilbert scheme of points on a surface