bio  website  people.virginia.edu/~btw4e 

location  Charlottesville, VA  
age  33  
visits  member for  5 years, 3 months 
seen  15 hours ago  
stats  profile views  17,821 
I'm an Assistant Professor at the University of Virginia. My interests are geometric representation theory, knot homology and categorification.
1d

answered  Categorical proof subgroups of free groups are free? 
Jan 14 
comment 
Intersections of $B$ and $B^$ orbits in the flag variety $G/B$
@JimHumphreys The intersection is empty if the elements aren't comparable in Bruhat order. 
Jan 13 
comment 
Are binomial coefficients $F_1$ analogs of $q$binomial coefficients?
Yes, I would say you can. 
Jan 11 
answered  Gabriel's theorem over a commutative ring 
Jan 10 
awarded  Enlightened 
Jan 10 
awarded  Nice Answer 
Dec 26 
awarded  Nice Question 
Dec 9 
answered  counting points on nilpotent Springer fiber 
Dec 9 
comment 
counting points on nilpotent Springer fiber
@JimHumphreys I'm not sure what the modular Springer correspondence has to do with anything. That is when the base field of the sheaf is finite, not the underlying variety (which is irrevelant for the category of constructible sheaves). 
Nov 27 
awarded  Good Answer 
Nov 5 
awarded  Popular Question 
Oct 21 
answered  Various definitions of the Bruhat decomposition of the affine Grassmannian 
Oct 19 
revised 
Shiftinvariant symmetric functions in representation theory?
added 597 characters in body 
Oct 17 
answered  Shiftinvariant symmetric functions in representation theory? 
Oct 8 
awarded  Good Answer 
Oct 5 
awarded  Yearling 
Sep 30 
awarded  Explainer 
Sep 19 
comment 
When is the induced representation factored through the initial one?
When $H$ is normal, then $\rho\circ \iota$ is a bunch of copies of $\pi$, so there the desired factoring is true. 
Sep 16 
comment 
When are JonesWenzl projectors defined?
$U_q(\mathfrak{sl}_2)$modules. 
Sep 16 
revised 
When are JonesWenzl projectors defined?
added 23 characters in body 