Skip to main content
MathOverflow
Denis Nardin's user avatar
Denis Nardin's user avatar
Denis Nardin's user avatar
Denis Nardin
  • Member for 11 years, 1 month
  • Last seen this week
Profile Activity

151 Answers

Score Activity Newest
7 votes
Accepted

A systematic canonical construction of the Hodge star operator

7 votes
Accepted

Thom isomorphism from the ABGHR perspective

6 votes

What does it mean to speak of a homotopy fibration sequence?

6 votes

A fibration of classifying spaces

6 votes

Geometric Meaning of Different K-theories

6 votes
Accepted

Adjoint map of $\Gamma$-space prespectrum

6 votes
Accepted

Doubt regarding the definition of slice filtration

6 votes

question about fiber functors and fundamental groups

6 votes

Most important mathematical results in last 30 years

6 votes
Accepted

Homotopy cosheaf?

6 votes

Spectral sequences in algebraic topology

6 votes

Is $S^1$ an open subspace of a contractible space?

6 votes
Accepted

Action of fundamental group on homotopy fiber

6 votes

Intuition about $\mathrm{Spec}\mathbb{C}[[t]]$ versus $\mathrm{Spf}\mathbb{C}[[t]]$ versus $\mathrm{Specan}\mathbb{C}[[t]]$ (and similar objects)

6 votes
Accepted

mod p (odd) cohomology of dihedral groups

6 votes
Accepted

Homotopy of group actions

6 votes
Accepted

Topological realisation of a stack (explicit description)

5 votes
Accepted

Which triangulated categories are subcategories of compact objects "somewhere"?

5 votes
Accepted

Are morphisms of parametrized spectra themselves parametrized morphisms of spectra?

5 votes

Do trivial homotopy groups imply existence of boundary preserving homotopies?

5 votes
Accepted

Invariance of Thom spectra

5 votes

About the cone being unique up to non-unique isomorphism

5 votes
Accepted

contracting homotopy on simplicial sets

5 votes
Accepted

The contravariant mapping space represented by a homotopical classifying space (e.g. BG)

4 votes

Why geometric generic point (in abstract algebraic geometry) replace general points in the unit disk?

4 votes
Accepted

Why does the first Cech cohomology classify twisted forms?

4 votes
Accepted

Expression of morphisms in motivic homotopy categories in terms of Nisnevich cohomology?

4 votes
Accepted

Does the existence of a derived functor imply existence of model structure?

4 votes
Accepted

Inverting a suspension object in a stable monoidal category

4 votes
Accepted

Is a $G$-cell complex always a $G$-CW complex?