Leonid Positselski

2,950
Reputation
2021 views
Is this your account?

Registered User 

Name Leonid Positselski
Member for 8 months
Seen 12 hours ago
Website
Location Moscow, Russia
Age 37
I am doing Homological Algebra, with occasional links to Representation Theory, Algebraic Geometry, Algebraic Number Theory, or Algebraic K-theory.
5

Questions
votes newest views recent
6

5

4

1
6
votes
3
answers
412
views

Exact sequences of permutational representations?

dec 13 at 14:44 Leonid Positselski 2,950●1●4●23

3

 

46

Answers
votes newest views recent
23
How Much Work Does it Take to be a Successful Mathematician?
21
Are the inner automorphisms the only ones that extend to every overgroup?
21
Non-commutative algebraic geometry
20
Is “semisimple” a dense condition among Lie algebras?
15
What is Koszul duality?
12
Algebraic geometry for cocommutative corings with counit.
12
Can skeleta simplify category theory?
11
Existence of projective resolutions in abelian categories
11
Geometric interpretation of filtered rings and modules
10
Comodule exercises desired
10
Tensored Over Abelian Groups?
9
Why does the Gamma-function complete the Riemann Zeta function?
9
Does homology detect chain homotopy equivalence?
8
Famous exercise from Lang’s Algebra
8
Telling group algebras apart
7
Koszul duality and modules over the Chevalley complex
7
Apocryphal Maschke theorem?
6
A result on prime numbers
6
What are natural transformations in 1-categories?
5
On limits and Colimits
5
Derived Functors in arbitrary triangulated categories
5
De Rham homology
5
Definition of étale for rings
5
Tot and colimits
5
A question on curved algebras, papers by Positselski and E. Segal
5
Gluing perverse sheaves?
4
How to become a good mathematician?
4
Can I become a good mathematician?
4
Sequential colim vs sequential hocolim
4
Indexing the line bundles over a Grassmannian.
1 2 next

 

114

Votes
95
19

 

55

Tags
× 12
× 12
× 11
× 11
× 5
× 4
× 3
× 3
× 3
× 3
 × 3
× 3
× 3
× 2
× 2
× 2
× 2
× 2
× 2
× 2
 × 2
× 2
× 2
× 2
× 2
× 2
× 2
× 2



















 

28

Badges
● Nice Answer× 11
● Enlightened× 3
● Nice Question× 2
● Fanatic
 ● Citizen Patrol
● Enthusiast
● Organizer
● Scholar
 ● Commentator
● Critic
● Teacher
● Supporter
 ● Editor
● Autobiographer
● Student