User Dev Sinha

19 votes

2 answers

1k views

Geometric model for classifying spaces of alternating groups

asked Jun 30, 2010 at 22:27

15 votes

1 answer

496 views

Geometric models for classifying spaces of $GLn(Fq)$.

asked Jul 29, 2010 at 19:30

14 votes

2 answers

1k views

Dyer-Lashof based spectral sequence for homotopy classes of maps between infinite loop spaces (spectra).

asked Apr 12, 2010 at 16:36

11 votes

1 answer

564 views

The space of compact subspaces of $R^\infty$ homotopy equivalent to a given finite complex.

asked Aug 25, 2010 at 22:38

11 votes

1 answer

479 views

Intersection map giving rise to Poincaré duality

asked Dec 11, 2020 at 16:20

9 votes

1 answer

514 views

Models for P map in EHP sequence

asked Feb 10, 2011 at 18:59

7 votes

1 answer

2k views

Tensor products of permutation representations of symmetric groups.

asked Jun 23, 2011 at 23:06

7 votes

5 answers

2k views

Explicit invariants (under change of basis) of maps $V \to V \otimes V$.

asked Jun 18, 2010 at 21:52

4 votes

3 answers

343 views

Generalized symmetric algebras and Dickson algebras over ${\mathbb F}_p$.

asked Apr 1, 2010 at 20:30

3 votes

0 answers

109 views

Using blow-up for handle attachment

asked Mar 28, 2023 at 16:57

2 votes

0 answers

546 views

Ring objects in the category of cocommutative coalgebras (aka Hopf rings).

asked May 27, 2010 at 4:49

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11 Questions

Geometric model for classifying spaces of alternating groups

Geometric models for classifying spaces of $GLn(Fq)$.

Dyer-Lashof based spectral sequence for homotopy classes of maps between infinite loop spaces (spectra).

The space of compact subspaces of $R^\infty$ homotopy equivalent to a given finite complex.

Intersection map giving rise to Poincaré duality

Models for P map in EHP sequence

Tensor products of permutation representations of symmetric groups.

Explicit invariants (under change of basis) of maps $V \to V \otimes V$.

Generalized symmetric algebras and Dickson algebras over ${\mathbb F}_p$.

Using blow-up for handle attachment

Ring objects in the category of cocommutative coalgebras (aka Hopf rings).