Mathematics
Willie Wong's user avatar
Willie Wong's user avatar
Willie Wong's user avatar
Willie Wong
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Mathematician

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question
596
Is there a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
Sep 30, 2014
answer
267
Open problems in General Relativity
Jul 9, 2011
answer
134
Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic
Feb 11, 2011
answer
98
Is zero positive or negative?
Mar 13, 2011
answer
92
How to read letters such as $\mathbb A$, $\mathbb B$, etc., or $\mathfrak A$, $\mathfrak B$, etc.?
Jan 22, 2013
answer
92
Does a Fourier transformation on a (pseudo-)Riemannian manifold make sense?
Dec 11, 2010
answer
89
Difference between Fourier transform and Wavelets
Jan 16, 2013
answer
75
Mathematical explanation behind a picture posted (lifted from facebook)
Oct 19, 2011
answer
67
Is this Batman equation for real?
Jul 29, 2011
answer
55
Good book for self study of functional analysis
Oct 22, 2010
Top Meta posts
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159
Announcement: I'm retiring
156
How to ask a homework question
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How to ask a good question.
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What's the best way to write e-mail addresses?
152
Does there exist a bijection of $\mathbb{R}^n$ to itself such that the forward map is connected but the inverse is not?
104
Math and Wormholes
102
Citing a range of papers using numeric keys as in \cite{a, b, c} -> [1-3]
91
What are the advantages or disadvantages of using LaTeX for writing scientific publications

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