Skip to main content
Mathematics
Erik D's user avatar
Erik D's user avatar
Erik D's user avatar
Erik D
  • Member for 4 years
  • Last seen more than a month ago
Profile Activity
Stats
921
reputation
7k
reached
28
answers
2
questions
Communities
About

Mathematician

Badges
View all badges
This user doesn’t have any gold badges yet.
4
silver badges
16
bronze badges
Top tags
View all tags
15
Score
8
Posts
27
Posts %
11
Score
4
Posts
13
Posts %
8
Score
6
Posts
20
Posts %
8
Score
3
Posts
10
Posts %
6
Score
5
Posts
17
Posts %
6
Score
5
Posts
17
Posts %
Top posts
View all questions and answers
answer
5
What's the meaning of defining a functor in a natural way?
Sep 8, 2020
question
4
Is the formula $\neg\neg\forall x (\neg P(x) \,\vee\, \neg\neg P(x))$ provable in intuitionistic logic?
Jun 11, 2021
answer
4
Indecomposable but reducible representation and their consequences. Examples.
Aug 27, 2020
answer
3
Let $M = K + L$ and let $f: M \to N$ be an epimorphism. Prove that $N = f(K) \oplus f(L)$ if $K \cap L = \operatorname{Ker}f$
Jan 21, 2021
answer
3
Finite representation type of certain triangular matrix ring
Aug 18, 2021
answer
3
Maximal subfield of the division algebra is splitting field
Oct 26, 2021
answer
3
Find indecomposable projective/injective module over $k[x]/ \langle x^n \rangle$
Oct 26, 2021
answer
3
Does a sequence in a subset of a compact set in a metric space have a convergent subsequence?
Apr 12, 2022
answer
2
Proving that the Octonion Norm Respects Multiplication
Aug 27, 2020
answer
2
Problem with showing that operations of defined set are $n$-transitive
Sep 2, 2020
Top network posts
View all network posts
12
What are some examples of colorful language in serious mathematics papers?
8
Elementary proof of an inequality for the Radon-Hurwitz numbers