User Simon Lentner

21 votes

Why are the sporadic simple groups HUGE?

answered Apr 7, 2012 at 20:39

12 votes

Tensor product of linear mappings versus chain complexes

answered Apr 8, 2012 at 22:48

11 votes

Examples of finite groups with "good" bijection(s) between conjugacy classes and irreducible representations?

answered Nov 21, 2015 at 12:39

10 votes

Accepted

2-cocycle twists of braided Hopf algebras

answered Apr 11, 2012 at 1:32

8 votes

Quantum group as (relative) Drinfeld double?

answered Jul 9, 2012 at 19:59

5 votes

Inseparable Galois Cohomology

answered Feb 4, 2015 at 11:41

4 votes

commutator subgroups and isomorphic

answered Apr 17, 2012 at 9:09

3 votes

(weak?) BN-Pair / Tits System for Sporadic Groups

answered Apr 10, 2012 at 12:36

3 votes

Restricting the Steinberg representation of $SL_{2n}$ over a finite field to the symplectic group

answered Feb 14, 2015 at 18:42

3 votes

What is $\left[ \begin{array}{c} K_i;0\\ \ell\\ \end{array} \right] _{\varepsilon _i}$ in the restricted specialization in QUE algebras?

answered Nov 7 at 22:56

3 votes

Non-Drinfeld–Jimbo deformations and finite quantum groups

answered Mar 15, 2013 at 16:27

2 votes

Accepted

Dimension formula for Cartan-type abelian.group Nichols algebra?

answered Jun 5, 2013 at 11:29

2 votes

Analysis and finitely generated groups

answered Apr 8, 2012 at 2:19

1 vote

Commutator table for Chevalley group G_2

answered Apr 10, 2012 at 11:02

1 vote

Finite, abelian, yet "fugitive" orthogonal subgroups

answered Apr 20, 2012 at 17:34

1 vote

Geometric interpretation of integrals of coordinate rings

answered Oct 30, 2013 at 22:17

1 vote

Involution of $E_{8}$ lattice

answered Nov 18, 2015 at 20:29

0 votes

$q$-Deforming Woronowicz's Leibniz Rule

answered Mar 15, 2013 at 16:36

0 votes

Finding the Universal Ideal of a (Covariant) Differential Calculus

answered Apr 7, 2012 at 18:35

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19 Answers

Why are the sporadic simple groups HUGE?

Tensor product of linear mappings versus chain complexes

Examples of finite groups with "good" bijection(s) between conjugacy classes and irreducible representations?

2-cocycle twists of braided Hopf algebras

Quantum group as (relative) Drinfeld double?

Inseparable Galois Cohomology

commutator subgroups and isomorphic

(weak?) BN-Pair / Tits System for Sporadic Groups

Restricting the Steinberg representation of $SL_{2n}$ over a finite field to the symplectic group

What is $\left[ \begin{array}{c} K_i;0\\ \ell\\ \end{array} \right] _{\varepsilon _i}$ in the restricted specialization in QUE algebras?

Non-Drinfeld–Jimbo deformations and finite quantum groups

Dimension formula for Cartan-type abelian.group Nichols algebra?

Analysis and finitely generated groups

Commutator table for Chevalley group G_2

Finite, abelian, yet "fugitive" orthogonal subgroups

Geometric interpretation of integrals of coordinate rings

Involution of $E_{8}$ lattice

$q$-Deforming Woronowicz's Leibniz Rule

Finding the Universal Ideal of a (Covariant) Differential Calculus