Mathematics
Alex Scheffelin's user avatar
Alex Scheffelin's user avatar
Alex Scheffelin's user avatar
Alex Scheffelin
  • Member for 3 years, 3 months
  • Last seen more than a month ago
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I'm interested in Algebra broadly, particularly finite group theory and algebraic geometry.

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Score Newest
question
6
Is Hartshorne's Remark III.2.9.1 actually a valid argument?
Dec 10, 2020
question
4
Theorem 26.10 (the Cartier Equality) in Matsumura's Commutative Ring Theory
Sep 26, 2021
question
4
On a certain colon ideal
Dec 24, 2022
question
3
Matsumura Commutative Ring Theory 6.9 on coprimary modules of finite length.
Sep 4, 2020
question
2
Alternative Solution to Hartshorne exercise II.4.2?
Aug 28, 2020
question
1
Is a separated algebra over a local ring a Zariski ring?
Apr 8, 2022
question
1
Can one check if a map of infinite rank free modules is an isomorphism modulo the maximal ideal
Jun 28, 2022
answer
1
Can one check if a map of infinite rank free modules is an isomorphism modulo the maximal ideal
Jun 29, 2022
answer
1
If a matrix acts injectively on a module can we find a coordinate projection which maintains injectivity?
Aug 18
question
0
Hartshorne Remark II.5.16.1 [duplicate]
Sep 24, 2020

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