User Yasha

6 votes

1 answer

1k views

On Brown representability theorem

asked Aug 1, 2011 at 17:14

5 votes

1 answer

247 views

Is the smooth singular simplicial set of a smooth manifold a Kan complex?

asked Mar 28, 2022 at 20:11

4 votes

0 answers

93 views

Extending morphisms in an $A_{\infty}$ category to natural transformations

asked Apr 14, 2017 at 18:41

4 votes

2 answers

519 views

Existence of "Continuous paths" in categories as directed systems

asked Apr 15, 2017 at 21:06

3 votes

1 answer

200 views

Does the group of compactly supported diffeomorphisms have the homotopy type of a CW complex?

asked Feb 9 at 16:52

3 votes

0 answers

147 views

Growth of norm of curvature under direct sum or existence of universal connection

asked Dec 7, 2015 at 17:04

2 votes

2 answers

284 views

Mean curvature upper bounds and area, or geodesic curvature upper bounds and length

asked Oct 11, 2017 at 17:06

2 votes

0 answers

361 views

Novikov conjecture

asked Jun 15, 2019 at 0:31

2 votes

1 answer

372 views

Chern numbers of primitive classes in BU

asked Nov 2, 2011 at 22:33

1 vote

1 answer

140 views

Examples of product negatively curved Riemannian manifolds

asked May 28 at 18:31

0 votes

0 answers

98 views

Deformed completion of negatively curved metric

asked May 25 at 11:28

0 votes

2 answers

341 views

Diameter of immersed surfaces with bounded from above mean curvature

asked Dec 3, 2015 at 15:29

0 votes

1 answer

100 views

Isometries of manifolds with non-positive sectional curvature

asked Jun 17, 2023 at 21:09

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13 Questions

On Brown representability theorem

Is the smooth singular simplicial set of a smooth manifold a Kan complex?

Extending morphisms in an $A_{\infty}$ category to natural transformations

Existence of "Continuous paths" in categories as directed systems

Does the group of compactly supported diffeomorphisms have the homotopy type of a CW complex?

Growth of norm of curvature under direct sum or existence of universal connection

Mean curvature upper bounds and area, or geodesic curvature upper bounds and length

Novikov conjecture

Chern numbers of primitive classes in BU

Examples of product negatively curved Riemannian manifolds

Deformed completion of negatively curved metric

Diameter of immersed surfaces with bounded from above mean curvature

Isometries of manifolds with non-positive sectional curvature