# Questions tagged [variational-inequalities]

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### Integral inner product with exponential function

Suppose on some unknown interval $[0, I]$ we have non-negative functions $f, g : [0, I] \rightarrow \mathbb{R}^{\geq 0}$. If we know that \begin{aligned} \int_0^I f & = c \\ \int_0^I e^f & = e^...
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### How to solve mckp (multiple-choice knapsack problem) problem with non-linear constraint

How to solve the below optimization problem? $P$ is a probability matrix, $0\le P_{ij}\le 1$. Are there any developed tools to solve this? Thanks a lot. \begin{equation*} \begin{aligned} &\...
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### A variational estimate related to the union closed set conjecture

Let $\varphi := \frac{\sqrt{5}-1}{2}$ be the golden ratio, and $H(x):=-x\log_2 x -(1-x) \log_2(1-x)$ be the binary entropy function for a Bernoulli random variable. Show that for all $\delta > 0$, ...
Let $X$ be a reflexive Banach space, $z, x, v \in X$. $\{z_i\}, \{x_i\}$ and $\{v_i\}$ are arbitrary sequences converging to $z, x$ and $v$, respectively. I would like to know under which conditions ...