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Counterexamples in PDE

big-list ap.analysis-of-pdes counterexamples asked Jun 24, 2011 at 0:56

mathoverflow.net

39 votes

Why do we call Tycho Brahe by his first name?

terminology astronomy brahe astronomers asked Jan 3, 2020 at 2:37

hsm.stackexchange.com

36 votes

ICM 2018 lecture videos

soft-question online-resources conferences icm-2018 asked Aug 3, 2018 at 14:54

mathoverflow.net

25 votes

Applications of PDE in mathematical subjects other than geometry & topology

ap.analysis-of-pdes soft-question asked Aug 31, 2011 at 17:46

mathoverflow.net

22 votes

History of fundamental solutions

ho.history-overview ap.analysis-of-pdes asked Aug 31, 2011 at 5:13

mathoverflow.net

18 votes

Other processes than formal power series expansions in quantum field theory calculations

quantum-field-theory mathematical-physics research-level regularization asked Oct 6, 2011 at 3:22

physics.stackexchange.com

15 votes

Continued fractions using all natural integers

nt.number-theory continued-fractions asked Nov 20, 2009 at 5:29

mathoverflow.net

14 votes

Applications of pseudodifferential operators to PDE

pseudo-differential-opera ap.analysis-of-pdes asked Apr 18, 2013 at 16:11

mathoverflow.net

14 votes

Does every dimension $n\geq4$ admit a manifold with an exotic smooth structure?

gt.geometric-topology smooth-structures asked May 18, 2016 at 3:50

mathoverflow.net

11 votes

ICM 2014 streaming video

soft-question icm-2014 asked Aug 12, 2014 at 23:38

mathoverflow.net

Top Answers

Which mathematicians have influenced you the most?

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Sobolev space $H^s(\mathbb{R}^n)$ is an algebra with $2s>n$

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Elliptic Regularity for solutions in distributional sense

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Complex Analysis Book

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Open problems in General Relativity

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The functional equation $f(x)+f(y)+f(z)+f(x+y+z)=f(x+y)+f(y+z)+f(z+x)$

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A PDE exercise from Gilbarg Trudinger. problem 2.2

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In $\mathbb{R}^n$, locally lipschitz on compact set implies lipschitz

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History of fundamental solutions

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The Hölder continuity condition of the Schauder estimates

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History of fundamental solutions

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Estimate solution of Poisson equation on unit ball

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A property of weakly harmonic functions

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Counterexamples in PDE

mathoverflow.net