New posts in Nonlinear Optimization

Optimization of a function of two variables.

Prove the supremum of the set of affine functions is convex

When $\min \max = \max \min$?

Elementary inhomogeneous inequality for three non-negative reals

If all points of a real function with positive values would be local minimum, can one say it is constant function?

How to prove $e^x\left|\int_x^{x+1}\sin(e^t) \,\mathrm d t\right|\le 1.4$?

Prove that this expression is greater than 1/2

Proving an infinite norm minimization problem has finite support (non-convex p-norms)

Maximize $f(0)+\cdots+f(n-1)$ subject to $f(x)f(y) + f(x+y) \leq 1$

A (reverse)-Minkowski type inequality for symmetric sums