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John Klein's user avatar
John Klein's user avatar
John Klein's user avatar
John Klein
  • Member for 13 years, 8 months
  • Last seen more than a month ago
  • Metro Detroit. Brooklyn expatriate.
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I'm an algebraic topologist. I also like espresso.

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62
Thomason's "open letter" to the mathematical community
35
Can anyone explain to me what is an assembly map?
28
On the (derived) dual to the James construction.
26
Groupoid actions on spaces
22
A map inducing isomorphisms on homology but not on homotopy