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AnonymousCoward
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62
Is there a definition of determinants that does not rely on how they are calculated?
Feb 11, 2011
60
Intuition for Blow-up.
Jan 8, 2012
38
Are most matrices diagonalizable?
Jun 20, 2017
36
When functions commute under composition
Nov 23, 2010
36
Is the complement of an injective continuous map $\mathbb{R}\to \mathbb{R}^2$ with closed image necessarily disconnected?
Jul 18, 2017
16
Good Book On Combinatorics
Dec 22, 2010
15
Prove that $(1+p)^{p^{n-1}} \equiv 1 \pmod{p^n}$ but $(1+p)^{p^{n-2}} \not\equiv 1\pmod{p^n}$, deduce $\text{ord}_{p^n}(p+1)=p^{n-1}$
Feb 6, 2011
15
Why does "convex function" mean "concave *up*"?
Sep 1, 2010
14
Group action and orbit space
Jan 21, 2019
11
Results related to The Happy Ending Problem
Nov 5, 2010