List questions from decreasing-rearrangements | MathQA

The decreasing rearrangement is non-expansive

Published on 30 Jan 2013 - 3:44

Newton's Theorem

Published on 05 Jan 2021 - 17:44

With $n> 3,$ prove that $a_{1}+ a_{2}+ a_{3}\geq 100$ by using Karamata's inequality

Published on 01 Mar 2021 - 8:11

Given 4 numbers $a, b, c, d> 0,$ show $16\max\limits_{\bigcirc}\left \{ a^{3}+ 3bcd \right \}\!\geq\!\left ( a+ b+ c+ d \right )^{3}$

Published on 01 Mar 2021 - 8:43

The functionals $\|\cdot\|_{L^{p,q}}$ do not satisfy the triangle inequality.

Published on 23 May 2022 - 9:50

Number of ways in which first $11$ natural numbers can be arranged in the given figure such that $a_{ij}>a_{kj}\;$ whenever $i>k\; \forall \;j$ is

Published on 06 Jun 2022 - 15:36

when does a decreasing rearrangment induce an invertible measure-preserving transformation?

Published on 05 Jan 2023 - 4:58