User Marco Farinati

22 votes

Short exact sequences every mathematician should know

answered Mar 20, 2021 at 23:18

7 votes

Subalgebra of a group algebra

answered May 31, 2019 at 17:36

5 votes

When does the forgetful functor from modules to vector spaces have a right adjoint?

answered May 21, 2019 at 16:33

5 votes

When is a given quiver algebra a hopf algebra?

answered Jun 16, 2019 at 20:47

5 votes

Direct sum of Hopf algebras

answered Sep 1, 2020 at 20:41

4 votes

Coinvariants of tensor products of Hopf algebras

answered Jun 19, 2020 at 18:12

4 votes

Hopf algebras examples

answered Oct 19, 2017 at 16:41

4 votes

A toy example of a tensor triangulated category?

answered May 5, 2019 at 3:31

4 votes

When is the exterior algebra a Hopf algebra?

answered Jun 15, 2019 at 18:22

3 votes

Accepted

Homotopy equivalences and Mapping Cones

answered Aug 9, 2020 at 19:41

3 votes

Classifications of Lie bialgebras

answered Jun 4, 2019 at 16:22

2 votes

Lie algebra of a compact Lie group and derivations of the Hopf algebra of representative functions

answered Jun 7, 2019 at 12:13

2 votes

Smooth affine algebras are Calabi-Yau

answered Jun 1, 2019 at 22:06

2 votes

Hopf algebra in derived category vector spaces

answered May 8, 2019 at 23:35

2 votes

Analogue Bialgeras vs Lie bialgebras

answered Sep 23, 2016 at 17:16

2 votes

Morita equivalence of DG algebras? (reference needed)

answered Oct 24, 2017 at 13:41

2 votes

Braidings for Comodules of Co-quasi-triangular Hopf algebra

answered May 15, 2019 at 20:12

2 votes

How well is the classification of low-dimensional semisimple Hopf superalgebras (or braided Hopf algebras) understood?

answered May 16, 2019 at 14:07

2 votes

Symmetry of Casimirs of Lie algebras

answered May 21, 2019 at 21:51

2 votes

Morita equivalence of $K$-algebras

answered May 22, 2019 at 0:16

1 vote

Is $T(V) \rtimes T(V^* \otimes V)$ a bialgebra?

answered May 24, 2019 at 14:05

1 vote

Group-like Elements in a Coquasitriangular Bialgebra

answered May 24, 2019 at 14:16

1 vote

Alternative Definition of the Quantum Determinant?

answered May 18, 2019 at 2:43

1 vote

Cotensoring by a Hopf Algebra

answered May 16, 2019 at 2:53

1 vote

Koszul duality between Weyl and Clifford algebras?

answered Apr 12, 2018 at 16:54

1 vote

Morita equivalent algebras in a fusion category

answered Oct 22, 2017 at 0:17

1 vote

Action is determined by a braiding

answered May 15, 2019 at 18:12

1 vote

infinite fold tensor product of universal enveloping algebra

answered Jun 28, 2019 at 18:12

1 vote

Accepted

Examples of basic coalgebras

answered Aug 21, 2019 at 17:30

1 vote

Can different knots have the same numbers of quandle colorings for all quandles?

answered Sep 5, 2019 at 13:40

Stack Exchange Network

39 Answers

Short exact sequences every mathematician should know

Subalgebra of a group algebra

When does the forgetful functor from modules to vector spaces have a right adjoint?

When is a given quiver algebra a hopf algebra?

Direct sum of Hopf algebras

Coinvariants of tensor products of Hopf algebras

Hopf algebras examples

A toy example of a tensor triangulated category?

When is the exterior algebra a Hopf algebra?

Homotopy equivalences and Mapping Cones

Classifications of Lie bialgebras

Lie algebra of a compact Lie group and derivations of the Hopf algebra of representative functions

Smooth affine algebras are Calabi-Yau

Hopf algebra in derived category vector spaces

Analogue Bialgeras vs Lie bialgebras

Morita equivalence of DG algebras? (reference needed)

Braidings for Comodules of Co-quasi-triangular Hopf algebra

How well is the classification of low-dimensional semisimple Hopf superalgebras (or braided Hopf algebras) understood?

Symmetry of Casimirs of Lie algebras

Morita equivalence of $K$-algebras

Is $T(V) \rtimes T(V^* \otimes V)$ a bialgebra?

Group-like Elements in a Coquasitriangular Bialgebra

Alternative Definition of the Quantum Determinant?

Cotensoring by a Hopf Algebra

Koszul duality between Weyl and Clifford algebras?

Morita equivalent algebras in a fusion category

Action is determined by a braiding

infinite fold tensor product of universal enveloping algebra

Examples of basic coalgebras

Can different knots have the same numbers of quandle colorings for all quandles?