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Denis Nardin's user avatar
Denis Nardin's user avatar
Denis Nardin's user avatar
Denis Nardin
  • Member for 11 years, 1 month
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151 Answers

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10 votes
Accepted

Acyclic complexes for extraordinary cohomology theories

10 votes
Accepted

Classifying spaces and Brown's representability theorem

10 votes

stacks that are not necessarily fibered in groupoids appearing in algebraic geometry and differential geometry

10 votes
Accepted

Reference request: mod 2 cohomology of periodic KO theory

10 votes

Useful invariants of etale topoi not coming from the shape

10 votes

Irreducible of finite Krull dimension implies quasi-compact?

9 votes
Accepted

Reference request for K-Theory linearization

9 votes
Accepted

Suspensions are H-cogroup objects

9 votes
Accepted

Contractible chain complex from non-contractible space

9 votes
Accepted

Applications of equivariant homotopy theory in chromatic homotopy theory

9 votes
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Are finite projective modules over $R[t]$ free when $R$ is DVR?

9 votes
Accepted

"Oriented representation" sphere

9 votes

Example of a non-$\infty$-category whose homotopy category is a groupoid

8 votes
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How to understand pushout/pullback in a stable $\infty$-category

8 votes
Accepted

Loop space of a Simplicial Abelian group

8 votes
Accepted

Simplicial mapping spaces, stable $\infty$-categories, and triangles

8 votes
Accepted

A "non-abelian excision" statement for mapping out of a space

8 votes

What is the formula for the commutative multiplication on CP(infinity)?

8 votes
Accepted

Homotopy function complex for quasi-categories

8 votes

Good reference for topological Hochschild homology

8 votes
Accepted

On the definition of A-theory

8 votes

Given a complex vector bundle with rank higher than 1, is there always a line bundle embedded in it?

8 votes

What parts of the theory of quasicategories have been simplified since the publication of HTT?

8 votes
Accepted

Precise reference for the equivalence of $E_n$ algebras and locally constant factorization algebra?

7 votes
Accepted

Symmetric monoidal structure on algebras

7 votes
Accepted

Intuition - difference between Moore spectrum and Eilenberg-Mac Lane spectrum

7 votes

Are there non trivial maps from $H\mathbb{Z}$ to $MGL$?

7 votes
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Morphisms from $bstring$ to $X\otimes \mathbb{Q}$ and sequences $s_n\in\pi_n(X)\otimes \mathbb{Q}$

7 votes
Accepted

Can homotopy colimits recover cohomology sheaves?

7 votes
Accepted

Identification of a Serre Spectral Seq. via Thom Isomorphism with the Atiyah-Hirzebruch Spectral Seq