User Hanno

42 votes

6 answers

8k views

Simple examples for the use of spectral sequences

spectral-sequences

asked May 2, 2010 at 23:39

31 votes

4 answers

7k views

Cohomology of Flag Varieties

at.algebraic-topology rt.representation-theory

asked Apr 17, 2010 at 9:19

26 votes

1 answer

1k views

Intuitive explanation for the use of matrix factorizations in knot theory

knot-theory

asked Jul 8, 2010 at 11:09

15 votes

5 answers

2k views

Tate Cohomology via stable categories

gr.group-theory homological-algebra finite-groups group-cohomology triangulated-categories

asked Jan 23, 2010 at 22:07

13 votes

4 answers

912 views

Glueing triangulated categories

triangulated-categories

asked Oct 7, 2010 at 14:02

11 votes

2 answers

645 views

Differential graded structures on free resolution?

ac.commutative-algebra homological-algebra

asked Sep 28, 2010 at 8:35

10 votes

1 answer

582 views

Free action of SL_2(F_p) on a sphere

at.algebraic-topology gt.geometric-topology

asked Feb 1, 2010 at 11:34

9 votes

3 answers

1k views

Algebraic/Categorical motivation for the Chevalley Eilenberg Complex

lie-algebra-cohomology

asked Jan 16, 2010 at 22:10

8 votes

2 answers

1k views

Constructing the Hecke-Algebra from the Burau representation

knot-theory

asked Jan 10, 2010 at 9:16

8 votes

0 answers

355 views

Dualizing complex of the product of two locally compact spaces

at.algebraic-topology sheaf-cohomology sheaf-theory

asked Apr 30, 2011 at 13:59

8 votes

2 answers

1k views

Presentation of the cohomology of generalized flag varieties as graded ranks of rings of symmetric polynomials

combinatorial-geometry ag.algebraic-geometry

asked Oct 1, 2010 at 9:50

6 votes

2 answers

638 views

Properties of the class of topological spaces possessing a CW-structure

at.algebraic-topology gn.general-topology

asked Jan 12, 2010 at 21:41

6 votes

1 answer

381 views

When are two ideals in a regular local ring generated by a regular sequence?

ac.commutative-algebra

asked Sep 30, 2010 at 8:23

6 votes

1 answer

727 views

Comparison of Local and Global Duality

ag.algebraic-geometry

asked May 26, 2010 at 21:56

5 votes

1 answer

882 views

Multiplicative Structures On Free Resolutions

ac.commutative-algebra homological-algebra

asked Nov 29, 2010 at 9:43

4 votes

2 answers

1k views

Kaplansky's theorem for graded local rings

ac.commutative-algebra

asked Nov 17, 2010 at 10:38

4 votes

2 answers

1k views

Fixed points of the action of an algebraic group

ag.algebraic-geometry lie-groups algebraic-groups smooth-manifolds

asked Apr 5, 2011 at 8:23

4 votes

2 answers

531 views

Five lemma in HoTop* and arbitrary pointed model categories

at.algebraic-topology model-categories

asked Jan 18, 2010 at 20:07

3 votes

1 answer

371 views

When do two objects become isomorphic in the stable category?

ct.category-theory

asked Jan 27, 2010 at 21:36

3 votes

2 answers

733 views

Cohomology of complex projective spaces with coefficientes in a complex-orientable cohomology theory

at.algebraic-topology

asked May 15, 2010 at 17:11

3 votes

0 answers

272 views

For which dg-algebras is a dg-module with bounded cohomology quasi-isomorphic to a bounded dg-module?

ac.commutative-algebra differential-graded-algebras

asked Dec 23, 2010 at 11:29

3 votes

1 answer

265 views

Invariants of unframed, oriented links from Reshetikhin Turaev construction

knot-theory quantum-topology

asked Jun 24, 2011 at 9:00

2 votes

0 answers

143 views

Action of Landweber-Novikov algebra on infinite polynomial ring

ag.algebraic-geometry at.algebraic-topology hopf-algebras differential-operators

asked Jan 28, 2014 at 12:03

2 votes

0 answers

111 views

Obstruction against the existence of a splitting in a fibered category

ct.category-theory

asked May 9, 2010 at 10:16

2 votes

1 answer

577 views

Derived Functors in arbitrary triangulated categories

ct.category-theory triangulated-categories

asked Jan 9, 2010 at 23:40

2 votes

0 answers

163 views

Methods for constructing Frobenius structures

ct.category-theory

asked Jan 22, 2010 at 16:39

2 votes

1 answer

425 views

Equivariant map preserves stabilizer

model-categories gr.group-theory

asked Jan 16, 2010 at 10:26

1 vote

2 answers

316 views

Relative Frobenius Structure on the Category of G-modules

gr.group-theory group-cohomology ct.category-theory triangulated-categories

asked Jan 22, 2010 at 15:33

1 vote

1 answer

156 views

Fields of definition for torsion points on elliptic curves over finite fields

elliptic-curves

asked Nov 27, 2017 at 23:15

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29 Questions

Simple examples for the use of spectral sequences

Cohomology of Flag Varieties

Intuitive explanation for the use of matrix factorizations in knot theory

Tate Cohomology via stable categories

Glueing triangulated categories

Differential graded structures on free resolution?

Free action of SL_2(F_p) on a sphere

Algebraic/Categorical motivation for the Chevalley Eilenberg Complex

Constructing the Hecke-Algebra from the Burau representation

Dualizing complex of the product of two locally compact spaces

Presentation of the cohomology of generalized flag varieties as graded ranks of rings of symmetric polynomials

Properties of the class of topological spaces possessing a CW-structure

When are two ideals in a regular local ring generated by a regular sequence?

Comparison of Local and Global Duality

Multiplicative Structures On Free Resolutions

Kaplansky's theorem for graded local rings

Fixed points of the action of an algebraic group

Five lemma in HoTop* and arbitrary pointed model categories

When do two objects become isomorphic in the stable category?

Cohomology of complex projective spaces with coefficientes in a complex-orientable cohomology theory

For which dg-algebras is a dg-module with bounded cohomology quasi-isomorphic to a bounded dg-module?

Invariants of unframed, oriented links from Reshetikhin Turaev construction

Action of Landweber-Novikov algebra on infinite polynomial ring

Obstruction against the existence of a splitting in a fibered category

Derived Functors in arbitrary triangulated categories

Methods for constructing Frobenius structures

Equivariant map preserves stabilizer

Relative Frobenius Structure on the Category of G-modules

Fields of definition for torsion points on elliptic curves over finite fields