Mathematics
Amitai Yuval's user avatar
Amitai Yuval's user avatar
Amitai Yuval's user avatar
Amitai Yuval
  • Member for 9 years, 4 months
  • Last seen more than a month ago
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Score Newest
answer
37
If three complex numbers $z_k$ have modulus $1$, then $|z_1+z_2+z_3| = \left|\frac{1}{z_1}+\frac{1}{z_2}+\frac{1}{z_3}\right|$
May 5, 2015
answer
18
Is there a notation for being "a finite subset of"?
Jan 27, 2015
answer
15
The Uniqueness Part of the Smooth-Manifold-Chart-Lemma in John M. Lee's Introduction to Smooth Manifolds.
Sep 12, 2014
answer
15
Finite-dimensional space naturally isomorphic to its double dual?
Jan 22, 2015
question
12
Turning number VS winding number
Nov 20, 2014
answer
12
Characterizations of Riemannian Volume Form
Feb 2, 2019
answer
11
Does $\forall x\ne 0: x^TAx>0$ means all eigenvalues of $A$ are real?
Sep 1, 2014
answer
10
Is the complement of a closed set always open?
Jun 26, 2015
answer
10
Why Riemannian metrics have to be smooth?
Sep 13, 2014
answer
10
Functions that are Riemann integrable but not Lebesgue integrable
May 23, 2017
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Can a harmonic function on a topological cylinder have critical points?

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