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Greg Friedman's user avatar
Greg Friedman's user avatar
Greg Friedman's user avatar
Greg Friedman
  • Member for 10 years, 8 months
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I'm a topologist, specializing in stratified spaces and intersection homology. I've also done some work on high dimensional knot theory, particularly PL singular knots and disk knots.
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How to use text within math as a macro without it being subject to \emph
Jan 3, 2014
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Paul Taylor's diagrams.sty NEVER HAPPEN error redux
Apr 10, 2023
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35
What (if anything) happened to Intersection Homology?
31
References for sign conventions in homological algebra
29
Short exact sequences every mathematician should know
28
What group is $\langle a,b \,| \, a^2=b^2 \rangle$?
20
Two points of view about Borel-moore homology