Skip to main content
Mathematics
Lukas Heger's user avatar
Lukas Heger's user avatar
Lukas Heger's user avatar
Lukas Heger
  • Member for 8 years, 2 months
  • Last seen this week
Profile Activity
Stats
21,945
reputation
181k
reached
533
answers
19
questions
Communities
View all
About

My main interests are algebra and number theory.

Badges
View all badges
2
gold badges
28
silver badges
65
bronze badges
Top tags
View all tags
657
Score
242
Posts
44
Posts %
259
Score
88
Posts
16
Posts %
257
Score
95
Posts
17
Posts %
251
Score
79
Posts
14
Posts %
167
Score
62
Posts
11
Posts %
160
Score
63
Posts
11
Posts %
Top posts
View all questions and answers
question
26
How much of a group $G$ is determined by the category of $G$-sets?
Feb 22, 2018
answer
23
Is there any variation known to the sum of two squares theorem?
Mar 15, 2022
answer
19
Is a ring of integers necessarily Noetherian?
Aug 11, 2017
answer
18
Number of Differentiable Structures on a Smooth Manifold
Aug 27, 2016
answer
16
Valuation ring lying between a valuation ring and its fraction field
Feb 15, 2018
answer
14
Solutions of $x^3+y^3+z^3=42$
Aug 3, 2022
answer
12
Noetherian Hausdorff Topological Spaces
Jan 10, 2021
answer
11
$\mathbb{R}$ with usual $+$, but not multiplication
Feb 3, 2018
answer
10
Does ring epimorphism induce reversed fully faithful functors in the module categories?
May 28, 2018
answer
10
Is every finite scheme affine?
Aug 31, 2023
Top Meta posts
2
1
21
I don't understand the deletion of a recent question
14
Do we really need separate tags for morphisms between certain objects when there's a tag for the objects?
Top network posts
View all network posts
12
What kind of arithmetic information does the ring of integers in an infinite extension carry?
11
HNN-extension as a 2-colimit
10
Is every UFD a filtered colimit of Noetherian UFDs?
7
What properties do the categories $\mathbf{GrpMod}$ and $\mathbf{GrpMod}^*$ of compatible pairs have? Can we do homological algebra with them?
7
Shouldn't we expect analytic (in the Berkovich sense) étale cohomology of a number field to be the cohomology of the Artin–Verdier site?