User Robert Bryant

19 votes

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Geodesics on $SU(4)$

answered Aug 4, 2014 at 12:52

19 votes

Vanishing eigenvalues of Jacobian

answered Sep 1, 2014 at 16:03

19 votes

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Rigorous justification that overdetermined systems do not have a solution

answered Apr 10, 2015 at 1:54

19 votes

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Factoring constant rank maps into a submersion and an immersion

answered Apr 17, 2015 at 16:31

19 votes

Generalising the Penrose Twistor Fibration

answered Aug 15, 2015 at 0:45

19 votes

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When is a flow geodesic and how to construct the connection from it

answered Dec 5, 2016 at 9:20

19 votes

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Techniques to solve a non-linear differential equation related to curvature

answered May 29, 2016 at 10:54

19 votes

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Lie algebra valued 1-forms and pointed maps to homogeneous spaces

answered Dec 25, 2011 at 14:42

19 votes

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Are (Frobenius) integrability conditions covariant?

answered Dec 8, 2012 at 0:15

18 votes

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From Shortest Paths to Manifold Structure

answered Dec 13, 2012 at 15:59

18 votes

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If a compact Kahler manifold $(M,g)$ has constant scalar curvature, is the metric $g$ real analytic?

answered Oct 28, 2012 at 12:12

18 votes

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What is symmetry group of non-linear equation?

answered Feb 10, 2013 at 22:47

18 votes

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partial differential equation for ruled surfaces

answered Oct 12, 2011 at 22:25

18 votes

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Homogeneous metrics of given volume element, on the n-sphere.

answered Jul 23, 2012 at 15:25

18 votes

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A careful roadtrip from locally symmetric spaces to algebra

answered Apr 26, 2016 at 17:57

18 votes

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Obtain Lorentzian manifolds from Riemannian ones by Wick rotation

answered May 6, 2014 at 20:19

18 votes

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Why Yau's theorem implies the existence of hyperkähler metric on complex symplectic manifolds?

answered Dec 1, 2013 at 2:53

18 votes

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Lightray trapped between two mirror disks: Computation formulation?

answered Jan 15, 2014 at 2:44

18 votes

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How useful/pervasive are differential forms in surface theory?

answered Mar 9, 2014 at 13:11

18 votes

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English translation of paper: Sur les variétés riemanniennes à groupe d'holonomie G2 ou Spin(7)

answered Apr 19, 2018 at 17:23

18 votes

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Flat metric on compact surface minus a point

answered Dec 14, 2019 at 21:23

18 votes

Is every minimal hypersurface in $S^n$ algebraic?

answered Jun 9, 2021 at 15:41

18 votes

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Does the curvature locally determine the connection?

answered Apr 22, 2023 at 10:42

18 votes

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When does the shape operator commute with a derivative?

answered Aug 7, 2023 at 23:29

17 votes

When are these base spaces isomorphic?

answered Aug 8 at 20:13

17 votes

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Constant Gaussian curvature surfaces in 3-space containing lines

answered Oct 22, 2017 at 10:35

17 votes

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Obstructions for a metric to be conformally equivalent to a product metric

answered Dec 29, 2013 at 17:48

17 votes

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Variation of curvature with respect to immersion?

answered Oct 7, 2014 at 15:14

17 votes

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Is there some Riemannian manifold's version of Whitney theorem?

answered Nov 1, 2014 at 13:46

17 votes

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Why does GL(N) have no spinor representations?

answered Feb 13, 2013 at 13:54

Stack Exchange Network

998 Answers

Geodesics on $SU(4)$

Vanishing eigenvalues of Jacobian

Rigorous justification that overdetermined systems do not have a solution

Factoring constant rank maps into a submersion and an immersion

Generalising the Penrose Twistor Fibration

When is a flow geodesic and how to construct the connection from it

Techniques to solve a non-linear differential equation related to curvature

Lie algebra valued 1-forms and pointed maps to homogeneous spaces

Are (Frobenius) integrability conditions covariant?

From Shortest Paths to Manifold Structure

If a compact Kahler manifold $(M,g)$ has constant scalar curvature, is the metric $g$ real analytic?

What is symmetry group of non-linear equation?

partial differential equation for ruled surfaces

Homogeneous metrics of given volume element, on the n-sphere.

A careful roadtrip from locally symmetric spaces to algebra

Obtain Lorentzian manifolds from Riemannian ones by Wick rotation

Why Yau's theorem implies the existence of hyperkähler metric on complex symplectic manifolds?

Lightray trapped between two mirror disks: Computation formulation?

How useful/pervasive are differential forms in surface theory?

English translation of paper: Sur les variétés riemanniennes à groupe d'holonomie G2 ou Spin(7)

Flat metric on compact surface minus a point

Is every minimal hypersurface in $S^n$ algebraic?

Does the curvature locally determine the connection?

When does the shape operator commute with a derivative?

When are these base spaces isomorphic?

Constant Gaussian curvature surfaces in 3-space containing lines

Obstructions for a metric to be conformally equivalent to a product metric

Variation of curvature with respect to immersion?

Is there some Riemannian manifold's version of Whitney theorem?

Why does GL(N) have no spinor representations?