Willie Wong
A mathematician specializing in nonlinear hyperbolic PDEs, geometric analysis of pseudoRiemannian manifolds, and general relativity.
A few of my questions on MO have not yet received a complete answer. Some of them I think about in the course of my research. But this one is entirely orthogonal to my main research activity and I would love to know the answer!
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 Michigan State University, MI
 williewong.wordpress.com
 Member for 6 years, 5 months
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 Last seen Jul 5 at 15:10
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 178Open problems in General Relativity
 164Does there exist a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?
 89What's the best way to write email addresses?
 85Math and Wormholes
 77What are the advantages or disadvantages of using LaTeX for writing scientific publications
 73Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic
 71How to read letters such as $\mathbb A$, $\mathbb B$, etc., or $\mathfrak A$, $\mathfrak B$, etc.?
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