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C.F.G
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19
Visually stunning math concepts which are easy to explain
Aug 29, 2020
12
How to imagine/prove that all of the following pictures are 2-torus?
Aug 11, 2020
12
Good problem book in differential geometry
Sep 8, 2017
11
If a two variable smooth function has two global minima, will it necessarily have a third critical point?
Mar 1, 2021
10
What is the representation of a Lie group intuitively?
Oct 9, 2021
9
What does fundamental (homotopy) groups measure?
Oct 20, 2020
8
How to show that $f(x)\equiv x$ for an injective and continuous $ f $ satisfying $f\big(2x-f(x)\big)\equiv x$?
Sep 15, 2019
8
Why are faithful actions called faithful and who first called them faithful?
Apr 27, 2020
8
What is the structure group of the tangent bundle?
Sep 9, 2017
7
Can we obtain Ricci curvature tensor from sectional curvature?
Aug 14, 2017
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The new color of Blockquotes bothers my eyes
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Old books you would like to have reprinted with high-quality typesetting
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LaTeX tricks that save time in typesetting
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Prominent non-mathematical work of mathematicians
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Could not open mysql.plugin table. Some plugins may be not loaded
33
Does China have no homeless people?