Willie Wong

Michigan State University, MI

http://williewong.wordpress.com

A mathematician specializing in nonlinear hyperbolic PDEs, geometric analysis of pseudo-Riemannian manifolds, and general relativity.

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Is there a bijection of $\mathbb{R}^n$ with itself such that the forward map is connected but the inverse is not?

general-topology metric-spaces examples-counterexamples connectedness asked Sep 30, 2014 at 12:18

math.stackexchange.com

152 votes

Does there exist a bijection of $\mathbb{R}^n$ to itself such that the forward map is connected but the inverse is not?

set-theory gn.general-topology real-analysis asked Apr 11, 2016 at 14:56

mathoverflow.net

102 votes

Citing a range of papers using numeric keys as in \cite{a, b, c} -> [1-3]

bibliographies biblatex natbib citing cite-package asked Oct 7, 2010 at 15:37

tex.stackexchange.com

82 votes

Tools for long-distance collaboration

soft-question math-communication asked Dec 14, 2010 at 13:11

mathoverflow.net

50 votes

What are vertical and horizontal modes?

tex-core asked Mar 10, 2011 at 19:21

tex.stackexchange.com

42 votes

How to prevent paragraph breaks after theorem environments?

environments indentation theorems paragraphs amsart asked Sep 22, 2010 at 15:09

tex.stackexchange.com

37 votes

Why do journals have limits on the number of references?

publications citations journals asked Jun 24, 2015 at 11:36

academia.stackexchange.com

33 votes

What are "variational crimes" and who coined the term?

reference-request terminology na.numerical-analysis asked May 26, 2010 at 13:53

mathoverflow.net

31 votes

Jet bundles and partial differential operators

reference-request ap.analysis-of-pdes dg.differential-geometry asked Sep 28, 2011 at 9:07

mathoverflow.net

29 votes

Associativity of $\iff$

logic intuition propositional-calculus asked Jul 10, 2013 at 7:51

math.stackexchange.com

Top Answers

267

Open problems in General Relativity

math.stackexchange.com

168

What's the best way to write e-mail addresses?

tex.stackexchange.com

134

Mathematical precise definition of a PDE being elliptic, parabolic or hyperbolic

math.stackexchange.com

104

Math and Wormholes

mathoverflow.net

Is zero positive or negative?

math.stackexchange.com

How to read letters such as $\mathbb A$, $\mathbb B$, etc., or $\mathfrak A$, $\mathfrak B$, etc.?

math.stackexchange.com

Difference between Fourier transform and Wavelets

math.stackexchange.com

What are the advantages or disadvantages of using LaTeX for writing scientific publications

academia.stackexchange.com

Does a Fourier transformation on a (pseudo-)Riemannian manifold make sense?

math.stackexchange.com

bibliography in Beamer

tex.stackexchange.com

Is LaTeX an implicit prerequisite in Undergraduate Mathematics?

academia.stackexchange.com

Examples of theorems misapplied to non-mathematical contexts

mathoverflow.net

Mathematical explanation behind a picture posted (lifted from facebook)

math.stackexchange.com

Double space between sentences

tex.stackexchange.com

Should I not cite an arxiv.org paper which otherwise seems to be unpublished?

mathoverflow.net

Is this Batman equation for real?

math.stackexchange.com

How do I make sure that \pageref{LastPage} doesn't get colored like the other links identified by hyperref?

tex.stackexchange.com

Blackboard bold characters

tex.stackexchange.com

Good book for self study of functional analysis

math.stackexchange.com

Can I get a normal footnote in a minipage environment in LaTeX? How?

tex.stackexchange.com

Differentiablility over closed intervals

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Integration of forms and integration on a measure space

math.stackexchange.com

Why are violin bows longer than viola bows, than cello bows, than double-bass bows ?

music.stackexchange.com

Distinction between 'adjoint' and 'formal adjoint'

math.stackexchange.com

Is non-standard analysis worth learning?

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Do circles divide the plane into more regions than lines?

math.stackexchange.com

How do you judge the quality of a journal?

academia.stackexchange.com

Questions on J. F. Nash's answer about his errors in the proof of embedding theorem

mathoverflow.net

In the history of mathematics, has there ever been a mistake?

math.stackexchange.com

Why do mathematicians use single-letter variables?

math.stackexchange.com