User Allen Knutson - MathOverflow

Allen Knutson

Member for 14 years, 6 months
Last seen more than a week ago

front.math.ucdavis.edu/…
Cornell

276 Answers

Score Activity Newest

3 votes

Is the preimage of a nonreduced subscheme nonreduced?

answered Jul 21, 2013 at 23:39

3 votes

Accepted

Condition on moment polytope for a toric manifold to be Fano

answered Oct 1, 2015 at 12:04

3 votes

Accepted

Reference for restriction formula in terms of double Schubert polynomials

answered Oct 22, 2015 at 13:05

3 votes

Accepted

expressing in terms of sum of (double) schubert polynomial

answered Nov 25, 2015 at 13:20

3 votes

Accepted

Shared maximum eigenvector

answered Jun 30, 2015 at 0:35

3 votes

Existence of a morphism between two toric varieties

answered Sep 17, 2015 at 12:29

3 votes

Applications of Representation Theory in Combinatorics

answered Dec 14, 2015 at 2:58

3 votes

Orientability of orbit type strata of Lie group actions

answered Mar 24, 2016 at 2:30

3 votes

How can one show $G/T$ is a coadjoint orbit for a compact Lie group $G$ and $T$ its maximal torus?

answered Jun 6, 2016 at 19:52

3 votes

Analogy of a Fano manifold with anticanonical divisor

answered Oct 12, 2016 at 18:18

3 votes

Toric variety defined by the Weyl orbit of a minuscule weight

answered Mar 13, 2017 at 11:50

3 votes

The geometry of the solution set of a symmetric equation in four symmetric matrices

answered Sep 25, 2017 at 16:58

3 votes

Geometric foundation of the Grothendieck polynomials

answered Oct 9, 2022 at 22:20

2 votes

Accepted

Searching for resolutions of generalized determinental varieties

answered Dec 7, 2022 at 13:46

2 votes

Verma modules and Borel–Weil

answered Oct 9, 2022 at 21:38

2 votes

Accepted

Quiver variety analogue of Grothendieck-Springer resolution

answered Jan 15, 2019 at 2:00

2 votes

Accepted

Is the action $T \times G \to G$ Poisson?

answered Jan 4, 2018 at 20:52

2 votes

Degeneration of coadjoint orbits

answered Jan 4, 2018 at 21:16

2 votes

$SO(6) \to SU(2) \times SU(2) \times U(1)$ branching rules

answered Feb 25, 2018 at 15:40

2 votes

Accepted

Zero dimensional components of an intersection

answered Nov 8, 2016 at 23:47

2 votes

Checking smoothness of the components of a highly symmetric scheme via quotient?

answered Apr 16, 2016 at 18:57

2 votes

Is there a short proof that the Kostka number $K_{\lambda \mu}$ is non-zero whenever $\lambda$ dominates $\mu$?

answered Dec 20, 2015 at 18:13

2 votes

Is there a formula for the Frobenius-Schur indicator of a rep of a Lie group?

answered Jan 7, 2016 at 15:49

2 votes

Degree of quasi-projective variety

answered Jan 31, 2016 at 3:07

2 votes

Is there a standard name for the following type of linear operator?

answered Feb 18, 2016 at 23:15

2 votes

Real and quaternionic representations according to weights

answered Jun 8, 2015 at 10:39

2 votes

Chern numbers via Euler characteristics?

answered Mar 8, 2013 at 5:14

2 votes

Stanley-Reisner ring of a simplicial complex is a functor?

answered Apr 12, 2013 at 0:19

2 votes

Accepted

affine weyl group and affine schubert cells

answered May 17, 2013 at 14:36

2 votes

Ideal Membership without Certificate?

answered May 28, 2013 at 15:49

…

6 7

8