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kevkev1695
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All Questions Answers
Score Newest
question
9
For what modules is the endomorphism ring a division ring?
Nov 26, 2020
question
9
Is every additive, left exact functor isomorphic to a hom functor?
Apr 9, 2021
question
9
What is the largest subcategory $C$ of a module category over an Artin algebra, such that $C$ is Krull-Schmidt (and abelian)? Does $C$ exist?
May 19, 2021
question
7
Localisation of categories, but instead of "isomorphisms" I want "morphisms with right inverse". Construction via calculus of fractions possible?
Oct 13, 2021
question
7
Split epimorphism of modules - does the finite case imply the infinite case?
Feb 3, 2022
question
5
Must the inclusion of an indecomposable module in the direct sum of two copies always split?
Mar 14, 2021
question
5
Concept of an exact ideal of a module category
Oct 18, 2021
question
5
What are the indecomposable modules over $\mathbb{F}_2(C_2\times C_2)$?
May 16, 2022
question
4
A similar construction to Ext, can we describe it better and does it have any use?
Apr 11, 2021
question
4
Let A be an Artin algebra. What happens if the limit and inverse limit are the same in mod A?
Jun 4, 2021
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19
Are groups with this property already studied?
6
Improvement on the concept of separating families for the union-closed sets conjecture?
5
When is a faithful ideal of a unital commutative ring a regular ideal?

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