Favorite Question

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What is the precise relationship between Langlands and Tannakian formalism?

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James D. Taylor

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The Rabinowitz Trick

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Grant Rotskoff

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Are there Maass forms where the expected Galois representation is $\ell$-adic?

Awarded Jul 14 at 1:49

John Pardon

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Golden ratio in contemporary mathematics

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johhnyelgerton

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Algebraic description of compact smooth manifolds?

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Jason DeVito - on hiatus

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Resources on invariant theory

Awarded Jul 3 at 16:17

streklin

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Did Grothendieck have a plan for proving Riemann Existence algebraically?

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James D. Taylor

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Statement of Millenium Problem: Yang-Mills Theory and Mass Gap

Awarded Jul 2 at 23:35

Florian

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Can epi/mono for natural transformations be checked pointwise?

Awarded Jun 20 at 7:37

Theo Johnson-Freyd

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what is $\mathrm{Bun}(G)$?

Awarded Jun 19 at 11:21

john mangual

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Notable mathematics during World War II

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David Hansen

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The derived category of the heart of a t-structure

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user4601931

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What are examples of mathematical concepts named after the wrong people? (Stigler's law)

Awarded Jun 11 at 20:27

Qiaochu Yuan

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Everywhere differentiable function that is nowhere monotonic

Awarded Jun 8 at 13:56

Ricky

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Can adjoint linear transformations be naturally realized as adjoint functors?

Awarded Jun 8 at 13:56

Qiaochu Yuan

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How much of the ATLAS of finite groups is independently checked and/or computer verified?

Awarded Jun 8 at 6:56

David Roberts♦

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Dimension of infinite product of vector spaces

Awarded Jun 7 at 21:10

François Brunault

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A problem of Shimura and its relation to class field theory

Awarded Jun 4 at 18:45

bhwang

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A route towards understanding Shimura varieties?

Awarded Jun 1 at 15:26

user9509

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Are some numbers more irrational than others?

Awarded May 27 at 23:26

I. J. Kennedy

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Why are there so many smooth functions?

Awarded May 27 at 13:02

Piotr Pstrągowski

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Motivated account of the prime number theorem and related topics

Awarded May 26 at 11:50

Sarah

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Function extensionality: does it make a difference? why would one keep it out of the axioms?

Awarded May 26 at 5:33

darij grinberg

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Asymptotic density of k-almost primes

Awarded May 21 at 6:17

Charles

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For which varieties is the natural map from the Chow ring to integral cohomology an isomorphism?

Awarded May 20 at 3:37

Qiaochu Yuan

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Extending vector bundles on a given open subscheme, reprise

Awarded May 13 at 10:51

Kevin H. Lin

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Stokes theorem for manifolds with corners?

Awarded May 12 at 4:55

Agustí Roig

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Torsion-freeness of Picard group

Awarded May 2 at 22:56

Moon

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A nice explanation of what is a smooth (l-adic) sheaf?

Awarded Apr 28 at 20:11

Mikhail Bondarko

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Unifying Geometry for Characteristic Classes

Awarded Apr 28 at 16:48

Jjm

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Understanding the definition of the quotient stack $[X/G]$

Awarded Apr 27 at 19:48

Brian Fitzpatrick

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Examples for Decomposition Theorem

Awarded Apr 26 at 17:57

Ilya Nikokoshev

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Alternating sum of square roots of binomial coefficients

Awarded Apr 20 at 22:42

Mark Wildon

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Presenting a paper: Do's and Don'ts?

Awarded Apr 12 at 7:50

Koundinya Vajjha

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What is the opposite category of the category of modules (or Hopf algebra representations)?

Awarded Apr 10 at 7:57

Akhil Mathew

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Are there two non-homotopy equivalent spaces with equal homotopy groups?

Awarded Apr 9 at 17:15

Gian Maria Dall'Ara

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What is the exact statement of "there are 27 lines on a cubic"?

Awarded Apr 3 at 21:51

Ilya Nikokoshev

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Consequences of Kirti Joshi's new preprint about p-adic Teichmüller theory on the validity of IUT and on the ABC conjecture

Awarded Mar 29 at 19:00

Madeleine Birchfield

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How many quit mathematics because they (are afraid that they) can not find a permanent job?

Awarded Mar 27 at 21:25

Nikita Kalinin

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Outer automorphisms of simple Lie Algebras

Awarded Mar 27 at 13:41

blt

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Is the non-triviality of the algebraic dual of an infinite-dimensional vector space equivalent to the axiom of choice?

Awarded Mar 26 at 14:35

Konrad Swanepoel

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Intuition for mean curvature

Awarded Mar 25 at 22:02

nicolas

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Not all manifolds can be triangulated: In which dimensions?

Awarded Mar 24 at 23:19

Joseph O'Rourke

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Smooth homotopy theory

Awarded Mar 16 at 17:20

Paul Siegel

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What's the point of a Whittaker model?

Awarded Mar 12 at 16:05

D_S

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Cocomplete but not complete abelian category

Awarded Mar 11 at 18:02

Simone Virili

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Classic applications of Baire category theorem

Awarded Mar 6 at 20:37

bane

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Why are we interested in the Fundamental Groupoid of a Space?

Awarded Mar 1 at 9:17

Jorge António

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Why are two notions of Gaussian curvature are the same - what is the simplest & most didactic proof?

Awarded Feb 23 at 23:34

Ilya Grigoriev

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A remark of Connes on non-standard analysis

Awarded Feb 12 at 16:34

Robert Haraway

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Formal mathematical definition of renormalization group flow

Awarded Feb 10 at 0:27

Hollis Williams

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Which number fields are monogenic? and related questions

Awarded Feb 6 at 17:51

Zev Chonoles

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What is meant by smooth orbifold?

Awarded Feb 6 at 8:57

AndrewLMarshall

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When is a submanifold of $\mathbf R^n$ given by global equations?

Awarded Feb 5 at 15:19

Oblomov

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Are there any interesting connections between Game Theory and Algebraic Topology?

Awarded Jan 31 at 23:52

paarshad

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What are some ways to stay engaged with the mathematical community from outside academia?

Awarded Jan 26 at 21:16

Nate River

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Why should I care about Heegaard-Floer theory?

Awarded Jan 25 at 21:07

Mitya

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Basis-free definition of Casimir element?

Awarded Jan 24 at 20:37

Tim Campion♦

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Linear transformation that preserves the determinant

Awarded Jan 21 at 0:16

Ohdarkdevil

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Generating finite simple groups with $2$ elements

Awarded Jan 12 at 11:03

Hugo Chapdelaine

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