Dmitry Vaintrob's user avatar
Dmitry Vaintrob's user avatar
Dmitry Vaintrob's user avatar
Dmitry Vaintrob
  • Member for 13 years, 9 months
  • Last seen more than 1 year ago
  • Cambridge, MA
12 votes

When forgetting structure doesn't matter

12 votes
Accepted

Can we use formal groups to recover Lie-theoretic representation theory in characteristic p?

8 votes
Accepted

$ \mathbb{R}P^n $ bundles over the circle

0 votes

K-theory of a coconnective dga

4 votes

Super mixed Hodge structures?

1 vote

Computationally intractable orbit of a monoid action on a finite set

8 votes

Number of points of algebraic curve

4 votes

About Lie group $G$ has this escape property?

13 votes

Situations where “naturally occurring” mathematical objects behave very differently from “typical” ones

2 votes

Name for a Hopf algebra admitting no non-trivial 1-dimensional comodule

1 vote

The Fock space vs the Hilbert space in the context of quantum field theory

2 votes

Number of connected components of the set of invertible matrices over the reals when some of the matrix entries are fixed

1 vote

Separable extensions & topology vs inseparable extensions and algebra

0 votes

Holomorphic union of sets

6 votes

Which is the correct universal enveloping algebra in positive characteristic?

4 votes
Accepted

Derived category of singular varieties

5 votes
Accepted

Dimension of $\ell$-adic Eilenberg-Maclane space

5 votes

Free augmented algebras

22 votes

Why is the Fourier transform so ubiquitous?

3 votes

Nowhere vanishing section implies reduction of structure group

3 votes
Accepted

Perfect DG modules

5 votes
Accepted

Tangent space of a finite flat group scheme

4 votes
Accepted

Formal completion of an elliptic curve along the $0$ sectioin and the formal expansion of functions

5 votes

Galois twist of a variety

2 votes

Topological version of K-theory of coherent sheaves

12 votes

Is forming the Albanese variety a monad?

3 votes

Cotangent complex of certain dg-scheme

21 votes

Does the category of (algebraically closed) fields of characteristic $p$ change when $p$ changes?

0 votes

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

6 votes

Analytic continuation of the double sum $\sum_{n,m\ge0}x^ny^mt^{nm}$