Inequality with convex functions
116781
Could someone give a detailed (yet elementary) proof for Jensen's inequality?
99644
Finding an Upper Bound on This Inequality
60887
$d_A(x) = \inf_{a \in A} \|x-a\|$ is convex if and only if $A$ is convex
36371
Exercise on convex functions
131543
inequality with three variables and condition
27587
inequality on the unit disk
131596
Symmetric Inequality in $\mathbb{R}$
106373
Hölder's inequality with three functions
85153
Show that $f(x) = -\ln(x)$ is convex (WITHOUT using second derivative!)
115495
Prove $\int _0^\infty f^2 dx \leq \cdots $ for $f$ convex
23264
Inequality $ \vert \sqrt{a}-\sqrt{b} \vert \leq \sqrt{ \vert a -b \vert } $
151148
How to solve simultaneous inequalities?
106979
Prove the inequality and limitation
67313
Proving $\{(x_1, x_2) \in \mathbb{R}^2_{+} \mid x_1 x_2 \geq 1\}$ is convex
95901
Inequality similar to the Schwarz-Pick theorem
16943
Midpoint-Convex and Continuous Implies Convex
25017
Why is every $p$-norm convex?