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Libli
  • Member for 11 years, 8 months
  • Last seen more than a month ago
45 votes
3 answers
5k views

"Cute" applications of the étale fundamental group

18 votes
1 answer
561 views

Subgroup $\mathrm{E}_6$ generated by $\mathrm{Spin_7}$ and $\mathrm{SL}_3$

17 votes
0 answers
695 views

When is the determinant an $8$-th power?

17 votes
0 answers
577 views

Finite version special case Jacobi triple product formula

16 votes
1 answer
675 views

Multiplicativity twisted Hochschild Kostant Rosenberg isomorphism

13 votes
2 answers
428 views

Tensor product of finite type UFD algebras over an algebraically closed field is again UFD?

13 votes
1 answer
2k views

Various authors of the Bourbaki's books

12 votes
1 answer
376 views

Characteristic polynomial of an $8 \times 8$ symmetric matrix with indeterminate entries related to octonionic multiplication

10 votes
1 answer
340 views

Vanishing natural transformation exact triangle

10 votes
0 answers
182 views

Derived equivalences preserved by blow-ups

10 votes
1 answer
2k views

Equivariant resolution of singularities

9 votes
2 answers
2k views

alternating and symmetric powers of the standard representation of the symmetric group

9 votes
3 answers
551 views

Subgroup of $\mathrm{GL}_n$ stabilizing linear subspace skew-symmetric matrices

8 votes
1 answer
274 views

Irreducibility of linear sections of the commuting variety

8 votes
2 answers
566 views

Pfaffian representation of the Fermat quintic

7 votes
1 answer
440 views

Inequality number of facets simplicial complex

6 votes
1 answer
2k views

Computing cotangent complex

6 votes
0 answers
129 views

Center Picard group non-commutative algebra

6 votes
2 answers
365 views

Rank one adjoint operators on a Lie algebra

5 votes
1 answer
404 views

schemes having same reduced underlying space and same cotangent sheaf are isomorphic?

5 votes
0 answers
306 views

Derived stack 2-perfect complexes and derived equivalences

4 votes
0 answers
225 views

Serre duality graded singularity category

4 votes
0 answers
160 views

detecting a semi-free module from its bar-resolution

4 votes
2 answers
278 views

Vanishing natural transformation and strong generator

4 votes
1 answer
1k views

Pushout schemes/stacks

4 votes
2 answers
851 views

blow-up of $\mathbb{P}^5$ as a projective bundle

4 votes
1 answer
278 views

Precise reference in Griffiths' papers : computation of the Hodge theory of a smooth projective hypersurface

4 votes
0 answers
211 views

Map $\operatorname{Sym}^{mp}(V^*) \longrightarrow K^{q}$ defined by $q$ points in $\operatorname{Sym}^p(V)$

4 votes
0 answers
199 views

Elementary proof Hilbert-Mumford stability criterion for $\operatorname{GL}_n(\mathbb{C})$

4 votes
1 answer
146 views

irreducibility punctual Hilbert scheme of relative subschemes of length $2$