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seen Apr 2 at 19:44

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Dec
18
answered Examples where it's useful to know that a mathematical object belongs to some family of objects
Apr
23
answered German mathematical terms like “Nullstellensatz”
Apr
11
comment What are the most misleading alternate definitions in taught mathematics?
This. I'm working on semigroup representations and been having problems getting a clear mental image about induced representations. I've been looking at the group-oriented literature but am wary of getting my intuition wrong for semigroups.
Apr
10
awarded  Supporter
Apr
7
awarded  Student
Apr
7
awarded  Scholar
Apr
7
accepted Are problems in complexity theory dependent on set theory?
Apr
7
comment Are problems in complexity theory dependent on set theory?
Nice catch, also the paper linked to there, scottaaronson.com/papers/pnp.pdf seems very useful.
Apr
7
asked Are problems in complexity theory dependent on set theory?
Mar
24
awarded  Editor
Mar
24
revised Boundaries of the eigenvalues of a symmetric matrix (or of its Lapacian)
added 3 characters in body
Mar
24
answered Boundaries of the eigenvalues of a symmetric matrix (or of its Lapacian)
Mar
6
awarded  Teacher
Mar
6
answered The concept “conjugate class” in monoids.