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Digests
Deane
New York, New York
http://cims.nyu.edu/~yangd/
Professor of Mathematics, New York University
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Top Questions
86
votes
Is there a complex structure on the 6-sphere?
dg.differential-geometry
complex-geometry
open-problem
asked Oct 22, 2009 at 23:16
mathoverflow.net
39
votes
Negative impact of wrong or non-rigorous proofs
soft-question
ho.history-overview
gm.general-mathematics
asked Jul 18, 2014 at 14:55
mathoverflow.net
25
votes
Ellipse naturally associated with a polygon
convex-geometry
convex-polytopes
integral-geometry
dg.differential-geometry
asked Nov 30, 2010 at 1:41
mathoverflow.net
24
votes
Ring with three binary operations
ra.rings-and-algebras
asked Feb 5, 2013 at 16:34
mathoverflow.net
22
votes
Is the metric completion of a Riemannian manifold always a geodesic space?
dg.differential-geometry
mg.metric-geometry
riemannian-geometry
asked Jan 18, 2019 at 18:55
mathoverflow.net
22
votes
Point singularity of a Riemannian manifold with bounded curvature
dg.differential-geometry
riemannian-geometry
open-problem
asked Oct 21, 2009 at 2:41
mathoverflow.net
15
votes
Is a smooth closed surface in Euclidean 3-space rigid?
dg.differential-geometry
open-problem
asked Oct 22, 2009 at 23:23
mathoverflow.net
15
votes
Does the Legendre-Hadamard condition imply a generalized Gårding inequality?
ap.analysis-of-pdes
harmonic-analysis
elliptic-pde
asked Jan 21, 2015 at 20:20
mathoverflow.net
13
votes
Existence, uniqueness, and regularity for linear parabolic PDE on a complete Riemannian manifold
riemannian-geometry
dg.differential-geometry
ap.analysis-of-pdes
asked Jan 25, 2012 at 23:15
mathoverflow.net
12
votes
Geodesics on a Grassmannian
dg.differential-geometry
asked Dec 4, 2009 at 5:37
mathoverflow.net
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Top Answers
197
Why do so many textbooks have so much technical detail and so little enlightenment?
mathoverflow.net
143
Why do we teach calculus students the derivative as a limit?
mathoverflow.net
140
Why study Lie algebras?
mathoverflow.net
98
What's a great christmas present for someone with a PhD in Mathematics?
mathoverflow.net
97
Proofs that require fundamentally new ways of thinking
mathoverflow.net
91
Parodies of abstruse mathematical writing
mathoverflow.net
88
Do good math jokes exist?
mathoverflow.net
63
How has "what every mathematician should know" changed?
mathoverflow.net
62
John Nash's Mathematical Legacy
mathoverflow.net
60
Too old for advanced mathematics?
mathoverflow.net
58
Why is cotangent more canonical than tangent?
mathoverflow.net
58
Examples of simultaneous independent breakthroughs
mathoverflow.net
54
Why is a topology made up of 'open' sets?
mathoverflow.net
53
Are there proofs that you feel you did not "understand" for a long time?
mathoverflow.net
52
Where does a math person go to learn quantum mechanics?
mathoverflow.net
47
Writing papers in pre-LaTeX era?
mathoverflow.net
45
What is the Implicit Function Theorem good for?
mathoverflow.net
43
Reading list for basic differential geometry?
mathoverflow.net
42
Which mathematical definitions should be formalised in Lean?
mathoverflow.net
39
Tenure vs nontenure jobs
academia.stackexchange.com
39
Why are matrices ubiquitous but hypermatrices rare?
mathoverflow.net
38
Physicist's request for intuition on covariant derivatives and Lie derivatives
mathoverflow.net
34
Does Physics need non-analytic smooth functions?
mathoverflow.net
32
Sheaves and bundles in differential geometry
mathoverflow.net
30
Mathematical "urban legends"
mathoverflow.net
30
Geodesics on spheres are great circles
mathoverflow.net
27
Major mathematical advances past age fifty
mathoverflow.net
27
Careers advice for Ph.D.s without current postdocs or university jobs
mathoverflow.net
27
Proofs that require fundamentally new ways of thinking
mathoverflow.net
26
Why do we care about $L^p$ spaces besides $p = 1$, $p = 2$, and $p = \infty$?
mathoverflow.net
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