Famous Question

Question with 10,000 views. This badge can be awarded multiple times.

Awarded 1178 times.

Synthetic vs. classical differential geometry

Awarded Nov 24 at 20:21

ಠ_ಠ

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Do there exist chess positions that require exponentially many moves to reach?

Awarded Nov 20 at 17:17

Timothy Chow

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Is there an elementary way to find the integer solutions to $x^2-y^3=1$?

Awarded Nov 17 at 1:26

Pace Nielsen

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How to Calculate the Expectation and Variance for Stochastic Integral with correlated Brownian Motions

Awarded Nov 16 at 8:40

Tom

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What is a good poster for a math conference?

Awarded Nov 16 at 5:06

user37238

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Intuitively, what does a graph Laplacian represent?

Awarded Nov 13 at 18:57

GraphX

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"You can't push a rope" [closed]

Awarded Nov 11 at 19:41

David Feldman

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What does the Lefschetz principle (in algebraic geometry) mean exactly?

Awarded Nov 9 at 21:41

stjc

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Does the curvature determine the metric?

Awarded Nov 8 at 14:35

Bernhard Boehmler

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Is there a version of inclusion/exclusion for vector spaces?

Awarded Nov 8 at 7:32

mingming

4991 gold badge5 silver badges7 bronze badges

Definitions of Hecke algebras

Awarded Nov 3 at 3:13

user717

5,0852 gold badges35 silver badges40 bronze badges

Smoothness of distance function in Riemannian Manifolds

Awarded Nov 2 at 18:56

Mauricio

1,3951 gold badge12 silver badges19 bronze badges

Do actual Sudoku puzzles have a unique rational solution?

Awarded Nov 1 at 22:35

Greg Kuperberg

55.8k10 gold badges199 silver badges275 bronze badges

How is representation theory used in modular/automorphic forms?

Awarded Nov 1 at 15:01

David Corwin

14.8k10 gold badges81 silver badges118 bronze badges

What are the uses of the homotopy groups of spheres?

Awarded Nov 1 at 13:51

Andrew Stacey

26.2k11 gold badges109 silver badges185 bronze badges

Riemann's formula for the metric in a normal neighborhood

Awarded Oct 31 at 15:04

Martin Gisser

1,0182 gold badges13 silver badges23 bronze badges

Archimedean Property of Real Numbers [closed]

Awarded Oct 28 at 1:32

Paramanand Singh

1,9491 gold badge15 silver badges29 bronze badges

How to compute the induced $||\cdot||_{2} $ matrix norm of an SPD matrix

Awarded Oct 19 at 12:06

Zenon

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The use of computers leading to major mathematical advances II

Awarded Oct 18 at 4:47

Gil Kalai

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The finite subgroups of SU(n)

Awarded Oct 17 at 2:42

Q.Q.J.

2,0734 gold badges23 silver badges25 bronze badges

Nonexistence of boundary between convergent and divergent series?

Awarded Oct 17 at 1:07

Timothy Chow

76.8k24 gold badges343 silver badges553 bronze badges

Down-To-Earth Uses of de Rham Cohomology to Convince a Wide Audience of its Usefulness

Awarded Oct 13 at 10:45

Janos Erdmann

1,3831 gold badge12 silver badges19 bronze badges

Volumes of n-balls: what is so special about n=5?

Awarded Oct 10 at 7:12

Andrey Rekalo

21.9k12 gold badges88 silver badges122 bronze badges

Cohomology and fundamental classes

Awarded Oct 9 at 19:25

Andrea Ferretti

14.3k12 gold badges78 silver badges110 bronze badges

Is it possible to write a research statement which is too short?

Awarded Oct 4 at 19:26

Ben Webster♦

43.3k12 gold badges121 silver badges248 bronze badges

Philosophy behind Zhang's 2022 preprint on the Landau–Siegel zero

Awarded Sep 25 at 2:17

Stopple

10.8k3 gold badges40 silver badges65 bronze badges

Is this Riemann zeta function product equal to the Fourier transform of the von Mangoldt function?

Awarded Sep 22 at 3:28

Mats Granvik

1,1331 gold badge12 silver badges21 bronze badges

Is there a good way to think of vanishing cycles and nearby cycles?

Awarded Sep 21 at 12:51

S. Carnahan♦

44.9k5 gold badges108 silver badges217 bronze badges

Sheaves and bundles in differential geometry

Awarded Sep 18 at 21:18

Harry Gindi

19.3k15 gold badges118 silver badges211 bronze badges

pull-back connection

Awarded Sep 18 at 11:56

user11538

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Prove that ${\sqrt2}^{\sqrt2}$ is an irrational number without using a theorem

Awarded Sep 18 at 2:28

mathlove

4,6872 gold badges18 silver badges48 bronze badges

Smooth dependence of ODEs on initial conditions

Awarded Sep 7 at 14:56

Max Menzies

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About the proof of the proposition "there exists irrational numbers a, b such that a^b is rational"

Awarded Sep 6 at 21:09

day

1791 gold badge1 silver badge4 bronze badges

Strengthening the induction hypothesis

Awarded Sep 1 at 9:33

Tony Huynh

30.9k11 gold badges107 silver badges180 bronze badges

Example of continuous function that is analytic on the interior but cannot be analytically continued?

Awarded Aug 22 at 18:02

Johan

7171 gold badge5 silver badges13 bronze badges

Nice applications of the spectral theorem?

Awarded Aug 19 at 0:32

Mark

4,7446 gold badges38 silver badges35 bronze badges

Financial Mathematics Books

Awarded Aug 15 at 0:26

abd

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Does there exist a complete implementation of the Risch algorithm?

Awarded Aug 14 at 20:57

Timothy Chow

76.8k24 gold badges343 silver badges553 bronze badges

Intuition of law of iterated logarithm?

Awarded Aug 14 at 14:10

user16557

1,4832 gold badges14 silver badges14 bronze badges

The mathematical theory of Feynman integrals

Awarded Aug 8 at 14:11

algori

23.1k3 gold badges98 silver badges151 bronze badges

The $2\pi$ in the definition of the Fourier transform

Awarded Aug 8 at 13:02

coudy

18.4k5 gold badges72 silver badges132 bronze badges

Famous mathematicians with background in arts/humanities/law etc [closed]

Awarded Aug 4 at 1:02

sigma_z_1980

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Convexity of a minimum function

Awarded Aug 3 at 11:10

Cusp

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What does the word "symplectic" mean?

Awarded Aug 2 at 7:51

Yuji Tachikawa

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Number of n-th roots of unity over finite fields [closed]

Awarded Jul 27 at 13:40

Anadim

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The 4th vertex of a triangle?

Awarded Jul 25 at 14:18

A.Zakharov

4251 gold badge3 silver badges9 bronze badges

Why forgetful functors usually have LEFT adjoint?

Awarded Jul 14 at 22:15

Yuhao Huang

4,9421 gold badge38 silver badges60 bronze badges

Nonconvexity and discretization

Awarded Jul 11 at 5:18

Peter Scholze

18.3k3 gold badges93 silver badges115 bronze badges

Duals and Tensor products

Awarded Jul 10 at 12:34

jkramerm

5001 gold badge5 silver badges8 bronze badges

Constructing the oracle for Grover's algorithm

Awarded Jul 6 at 9:45

Rhyzomatic

2331 gold badge2 silver badges6 bronze badges

Publishing a bad paper?

Awarded Jul 6 at 6:41

anonymous

1711 gold badge2 silver badges3 bronze badges

How should one think about non-Hausdorff topologies?

Awarded Jun 30 at 14:05

Mark

4,7446 gold badges38 silver badges35 bronze badges

Is there a "mathematical" definition of "simplify"?

Awarded Jun 27 at 18:06

Craig Feinstein

2,4714 gold badges25 silver badges36 bronze badges

A finitely generated, locally free module over a domain which is not projective?

Awarded Jun 25 at 10:33

Pete L. Clark

64.3k12 gold badges235 silver badges375 bronze badges

Abstract thought vs calculation

Awarded Jun 20 at 7:25

Sergei Tropanets

1,1571 gold badge15 silver badges22 bronze badges

A slick proof of the Bruhat Decomposition for GL_n(k)?

Awarded Jun 17 at 17:16

Harry Gindi

19.3k15 gold badges118 silver badges211 bronze badges

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

Awarded Jun 14 at 12:10

Madeleine Birchfield

2,0161 gold badge4 silver badges19 bronze badges

Classification of finite commutative rings

Awarded Jun 14 at 2:42

Puraṭci Vinnani

2,1261 gold badge21 silver badges42 bronze badges

What is the angle between two complex vectors?

Awarded Jun 12 at 19:55

Sunni

1,8581 gold badge19 silver badges29 bronze badges

Category theory and set theory: just a different language, or different foundation of mathematics?

Awarded Jun 11 at 5:55

Claus

6,7574 gold badges24 silver badges43 bronze badges

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