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Jay
  • Member for 11 years, 5 months
  • Last seen more than a month ago
  • Minneapolis, MN
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I am interested in closure systems. I think of them as generalizations of the convex hull operation rather than a generalization of closure in topology. See: http://www.ams.org/meetings/sectional/1058-52-28.pdf

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2
How to present the motivation for a book on mathematical research?
Mar 20, 2014
answer
0
What are the trade-offs of working in the office versus elsewhere (as a professor)?
Jun 16, 2012
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28
How can I prove that one of $n$, $n+2$, and $n+4$ must be divisible by three, for any $n\in\mathbb{N}$
15
Is there any conjecture that has been proved to be solvable/provable but whose direct solution/proof is not yet known?
13
Is The *Mona Lisa* in the complement of the Mandelbrot set.
10
Complete lattices and sublattices – which requirement is more stringent?
9
Showing that a set X with a trivial topology is not metrizable

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