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Mathematics
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Sal
  • Member for 11 years
  • Last seen more than 10 years ago
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12
Is a one point space Hausdorff?
Dec 3, 2014
10
Writing $G/A\times G/B$ explicitly as union of orbits
Nov 29, 2014
10
If $f\circ g = g \circ f$ does that mean that both functions are to and from the same set and both are bijections? Does it tell us anything else?
Jan 18, 2015
10
Example of a complete metric space which is not compact
Dec 3, 2014
9
Do surjective ring homomorphisms commute with intersection of ideals?
Jan 7, 2015
8
Is the number of finite strings infinite?
Jan 11, 2015
7
Is there a notion in mathematics saying that, in a sense, all finite dimensions are actually infinite dimensional?
Dec 5, 2014
7
Why this happen only with $4,8,12,.......$
Dec 14, 2014
6
What is "cyclic shift unitary" on $M_{n}(\mathbb{C})$?
Nov 29, 2014
6
Name a abelian subgroup which is not normal
Dec 4, 2014