Mathematics
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cs89
  • Member for 9 years, 7 months
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  • Paris, France
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Mathematician

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Score Newest
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11
Prove $ \frac{x_1-x_2}{x_n+x_1} + \frac{x_2-x_3}{x_1+x_2}+\cdots+ \frac{x_n-x_1}{x_{n-1} +x_n}\le 0$ s.t. $x_1+\cdots+x_n=1$
Apr 30
answer
10
Shape that a bending rod makes
May 15
answer
9
Is a piecewise linear function always a sum of concave and convex functions?
May 15
answer
5
A Question on the Proof of A Form of the Minkowski Inequality
Apr 13
answer
4
Pontryagin's Principle is a "necessary" condition?
Apr 30
answer
4
Closedness of operator Hardy type
Mar 31
answer
4
Does the convergence of $\int_{0}^\infty |f(x)|\,dx$ imply the convergence of $\int_{0}^\infty f(x)\,dx$?
Apr 21
answer
4
Can a cubic polynomial in two real variables have exactly three isolated critical points?
May 15
answer
4
Can solution of any differential equation be expressed as power series?
Apr 14
question
3
Computing the asymptotic spectrum of a negative distance kernel
May 6, 2014
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13
Where to upload digitized LaTeX versions of old papers?
8
When are complex polynomial maps surjective?
7
Can we interpret fractional Sobolev spaces in terms of fractional derivatives?
6
Proving that a specific kernel is positive definite
5
Hardy-Littlewood-Sobolev inequality using fractional sobolev norm on the RHS

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