User Todd Leason

22 votes

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Open problems in Hopf algebras

answered Feb 15, 2016 at 2:36

14 votes

Open problems in Hopf algebras

answered Feb 15, 2016 at 2:24

9 votes

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On rings $R$ such that $xR\cap yR$ is non zero whenever $x$ and $y$ are non zero

answered Feb 29, 2016 at 2:24

8 votes

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Groups with trivial rational homology and their finite index subgroups

answered Oct 20, 2015 at 23:51

6 votes

Group rings over central products

answered Mar 18, 2018 at 4:16

5 votes

Simple proof that $(p_1x_1-q_1y_1,...,p_nx_n-q_ny_n)$ is a prime ideal

answered Oct 31, 2015 at 4:03

5 votes

About the Wedderburn-Malcev Theorem

answered Mar 18, 2016 at 19:28

4 votes

A table for irreducible integral representation of finite cyclic groups

answered May 3, 2015 at 16:36

4 votes

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Is the restriction of a graded automorphism of a polynomial ring to a polynomial subring linearizeable?

answered Apr 30, 2016 at 8:53

4 votes

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how to pass from algebraic power series to the analytic ones

answered Apr 3, 2017 at 0:05

3 votes

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Subring of ring

answered Oct 31, 2015 at 2:29

2 votes

Linear Independence & Group Theory

answered Aug 24, 2012 at 10:07

2 votes

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$Hom (T,R)$ isomorphic to $R:T$?

answered Nov 4, 2015 at 20:24

2 votes

Dimension of a commutative ring

answered Dec 13, 2015 at 3:41

1 vote

The center of a(n endomorphism) ring is a PID

answered Apr 23, 2016 at 13:48

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15 Answers

Open problems in Hopf algebras

Open problems in Hopf algebras

On rings $R$ such that $xR\cap yR$ is non zero whenever $x$ and $y$ are non zero

Groups with trivial rational homology and their finite index subgroups

Group rings over central products

Simple proof that $(p_1x_1-q_1y_1,...,p_nx_n-q_ny_n)$ is a prime ideal

About the Wedderburn-Malcev Theorem

A table for irreducible integral representation of finite cyclic groups

Is the restriction of a graded automorphism of a polynomial ring to a polynomial subring linearizeable?

how to pass from algebraic power series to the analytic ones

Subring of ring

Linear Independence & Group Theory

$Hom (T,R)$ isomorphic to $R:T$?

Dimension of a commutative ring

The center of a(n endomorphism) ring is a PID