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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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55 votes
Accepted

Why stable $\infty$-categories?

38 votes
Accepted

Replacing triangulated categories with something better

33 votes
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Why is Voevodsky's motivic homotopy theory 'the right' approach?

22 votes
Accepted

Entering to the K-theory realm

22 votes
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Roadmap to Hill-Hopkins-Ravenel

21 votes

Why presheaves with transfer?

21 votes
Accepted

Is it meaningful to work on convergencies, integration, etc. on the Zariski topology?

21 votes
Accepted

Why does K-theory need schemes to be Noetherian?

20 votes
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Describing fiber products in stable $\infty$-categories

20 votes
Accepted

Tensor product of fields over integers

19 votes
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Why Cech cohomology does not compute sheaf cohomology on an open annulus

19 votes
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Why not $\mathit{KSO}$, $\mathit{KSpin}$, etc.?

19 votes
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Relating two different approaches to the Atiyah-Hirzebruch Spectral Sequence

18 votes
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Realizing homomorphisms between fundamental groups

18 votes

Steenrod operations in etale cohomology?

18 votes
Accepted

Difficulties with descent data as homotopy limit of image of Čech nerve

18 votes
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Are higher etale homotopy groups topological groups in a natural way?

17 votes
Accepted

Motivation for definition of Quotient stack

17 votes

Noteworthy, but not so famous conjectures resolved recent years

16 votes

Poincare duality on the level of complexes

16 votes
Accepted

What is the relationship between spectral sequences and obstruction theory?

16 votes
Accepted

Do Schlichting's and Balmer's definitions of higher Witt groups of a scheme agree when 2 is inverted?

16 votes
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Algebraic topology and homotopy theory with simplicial sets instead of topological spaces

15 votes
Accepted

Are Spanier-Whitehead duals of general spaces expressible through some generalization of normal bundles?

15 votes
Accepted

A concrete example of the deficiency of triangulated categories?

15 votes

An apparent equivalence of the category of affine schemes over $S$ and the category of quasi-coherent $\mathcal{O}_S$-algebras

15 votes
Accepted

Are finite spaces a model for finite CW-complexes?

14 votes

A "universally non Hypercomplete" $\infty$-topos via Goodwillie calculus?

14 votes
Accepted

How to think about infinite generatedness of motivic cohomology

14 votes
Accepted

is the tensor product of projective modules again projective?

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