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bio website sas.upenn.edu/~vnanda
location Philadelphia, PA
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visits member for 3 years, 2 months
seen 11 hours ago

Currently a post-doc at Penn, was a graduate student at Rutgers. Here are some papers, some software, and a seminar.


1d
comment Why does a tetracategory with one object, one 1-morphism and one 2-morphism give a symmetric monoidal category
Wow. I hope that the referees who make it through the "$K_6$ axiom" on pages 19-26 of Hoffnung's paper are paid their weight in ivory, apes and peacocks.
2d
reviewed Approve Is a certain A-infinity algebra (homologically) smooth?
Dec
23
answered Lefschetz fixed notation
Dec
19
comment The letters of the word “ART”
If $U$ is an arbitrary open set (e.g. could be disconnected even if $X$ is not) then wouldn't the letter X also qualify without being homeomorphic to the others?
Dec
15
comment Dehn-Sommerville relations for $\Delta$-complexes
I am already confused by the first line, since there is generally no unique simplicial complexes whose geometric realiazation is $M$. Are you saying that the DS equations are satisfied by any simplicial complex $K$ with $|K|$ homeomorphic to $M$?
Dec
15
revised Contractibility of a poset-indexed colimit
title accuracy ++
Dec
15
asked Contractibility of a poset-indexed colimit
Dec
7
comment why “usual conditions” of a filtration are relevant?
For those of us who don't have the textbook handy, could you mention what those conditions are?
Dec
4
reviewed Approve Characteristic polynomial of Kronecker/tensor product
Nov
29
comment Perron-Frobenius theory for reducible matrices
$A = \begin{bmatrix}0 & 1\\1 & 0\end{bmatrix}$. What would you like to know?
Nov
25
comment A game of stones
Liviu, I have hope for your conjecture. See markhkim.com/2013/10/killing-the-hydra
Nov
24
revised Why Cohen-Macaulay rings have become important in commutative algebra?
bjorner article added
Nov
24
reviewed Approve Is there an (almost) dense set of quadratic polynomials which is not in the interior of the Mandelbrot set?
Nov
22
revised Robotics, Cryptography, and Genetics applications of Grothendieck's work?
justin, not michael
Nov
22
reviewed Approve combinatorial-game-theory tag wiki
Nov
19
comment Is there any relationship between the topologies of the clique complex and the independence complex?
There is no connection in general between $X(G)$ and $S^n \setminus I(G)$ for a given graph $G$. Perhaps you're more interested in classifying those $G$ for which an Alexander type theorem might hold?
Nov
13
awarded  Favorite Question
Nov
12
awarded  Good Answer
Nov
12
revised Can we actually find any fixed points with Brouwer's theorem?
removed superfluous stuff
Nov
6
reviewed Edit When does a rational function have infinitely many integer values for integer inputs?