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Will Brian's user avatar
Will Brian's user avatar
Will Brian
  • Member for 9 years, 8 months
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associate professor of mathematics at UNC Charlotte

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answer
123
Tweetable Mathematics
Apr 26, 2017
answer
66
Bijection from the plane to itself that sends circles to squares
Apr 10, 2017
answer
46
When can one continuously prescribe a unit vector orthogonal to a given orthonormal system?
Nov 5, 2018
answer
43
Which popular games have been studied mathematically?
Jan 9, 2018
answer
40
A topology on $\Bbb R$ where the compact sets are precisely the countable sets
Nov 21, 2016
answer
39
Are all free ultrafilters 'the same' in some sense?
Dec 10, 2021
question
33
Can $[0,1]^4$ be partitioned into copies of $(0,1)^3$?
Aug 26, 2021
question
30
Is there a subset of the plane that meets every line in two open intervals?
Jul 9, 2015
answer
30
Proofs where higher dimension or cardinality actually enabled much simpler proof?
May 21, 2020
answer
29
Is it possible to define higher cardinal arithmetics
Aug 18, 2016