13

Answers
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2
Sharpness of the Sobolev embedding theorem
6
What goes wrong for the Sobolev embeddings at $k=n/p$?
4
a diameter-perimeter-area inequality for convex figures
2
Alternate definitions of $C^{1,\alpha}$ and $C^{1,\alpha}(\bar{D})$ maps
3
Elliptic Differential Equations with rough boundary data
7
Alexandrov-Bakelmann-Pucci maximum principle
0
Question About Harmonic Function Theory
3
compactly supported harmonic functions
1
Derivable functions & Sobolev spaces
1
Moser regularity proof avoiding John-Nirenberg lemma
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PDEs as a tool in other domains in mathematics
3
Roadmap to learning about Ricci Flow?
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What are your favorite instructional counterexamples?