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Bill Cook's user avatar
Bill Cook's user avatar
Bill Cook
  • Member for 13 years, 3 months
  • Last seen more than a week ago
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Prof. at Appalachian State University (in Western North Carolina)

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Top posts
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answer
17
Classification of finite type structures leads to Dynkin diagrams?
Jul 24, 2017
question
14
Do these matrix rings have non-zero elements that are neither units nor zero divisors?
Oct 11, 2011
answer
14
affine Kac-Moody algebras
Sep 15, 2011
question
13
Three-dimensional simple Lie algebras over the rationals
Oct 18, 2011
answer
11
How important is it for one on the job market to have thought about suitable REU projects?
Sep 12, 2011
question
8
Has this "pseudo-quotient" of groups been studied before?
Sep 14, 2011
question
8
n-dimensional "cross product" reference request
Apr 17, 2012
question
8
Rational distance from vertices of an equilateral triangle
Sep 5, 2014
answer
8
Giving a math talk with no blackboard or projector
Sep 14, 2011
question
6
Given 2 towers of fields, when are these fields isomorphic?
Sep 6, 2011
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86
Subgroup of index $2$ is Normal
56
Lesser-known integration tricks
48
Understanding the difference between group representations and modules
43
Understanding the Frechet derivative
41
What is the inverse cycle of permutation?