List questions from noncommutative-algebra

79

Views

Does Pontryagin duality extend to class two nilpotent or maybe even metabelian locally compact groups?

Published on 19 Mar 2026 - 14:56

172

Views

Are all quaternion algebras over the rationals skew fields?

Published on 22 Mar 2026 - 10:39

132

Views

How do I prove that every fractional ideal of an order in a division algebra is a full lattice?

Published on 25 Mar 2026 - 1:18

145

Views

Is every (left) graded-Noetherian graded ring (left) Noetherian?

Published on 22 Mar 2026 - 23:13

2.6k

Views

The mysterious isomorphism between coinduction and induction

Published on 25 Mar 2026 - 1:36

240

Views

Natural transformations from coinvariants to invariants

Published on 25 Mar 2026 - 1:35

114

Views

Lang's proof of the uniqueness of multiplicities for semisimple modules

Published on 08 Jul 2018 - 17:09

174

Views

Is Artinian algebra with finite injective dimension of itself is self-injective？

Published on 15 Jul 2018 - 4:33

345

Views

Reference: Every Scheme is Derived Affine

Published on 22 Mar 2026 - 15:06

49

Views

Constructing an integral domain with a specific subring

Published on 17 Jul 2018 - 20:52

155

Views

Is pullback of non-commutative rings well defined?

Published on 22 Feb 2026 - 23:26

256

Views

Matrix trace equality

Published on 19 Jul 2018 - 22:43

93

Views

Is $\operatorname{Hom}(E,M)$ simple as an $\operatorname{End}(M)$-module if $E$ is simple?

Published on 22 Jul 2018 - 21:40

110

Views

Complicated differential operator and application of the Zassenhaus formula

Published on 24 Jul 2018 - 14:49

112

Views

Boson operator algebra - unitary transformation

Published on 01 Aug 2018 - 16:53

List Question

Does Pontryagin duality extend to class two nilpotent or maybe even metabelian locally compact groups?

Are all quaternion algebras over the rationals skew fields?

How do I prove that every fractional ideal of an order in a division algebra is a full lattice?

Is every (left) graded-Noetherian graded ring (left) Noetherian?

The mysterious isomorphism between coinduction and induction

Natural transformations from coinvariants to invariants

Lang's proof of the uniqueness of multiplicities for semisimple modules

Is Artinian algebra with finite injective dimension of itself is self-injective？

Reference: Every Scheme is Derived Affine

Constructing an integral domain with a specific subring

Is pullback of non-commutative rings well defined?

Matrix trace equality

Is $\operatorname{Hom}(E,M)$ simple as an $\operatorname{End}(M)$-module if $E$ is simple?

Complicated differential operator and application of the Zassenhaus formula

Boson operator algebra - unitary transformation

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