Variational inequalities

Nikolaos E. Sofronidis

If $-\infty <\alpha <\beta <\infty$ and $f\in C^3\left([\alpha ,\beta ]\times {\mathbf{R}}^2,\mathbf{R}\right)$ is bounded, while $y\in C^2\left([\alpha ,\beta ],\mathbf{R}\right)$ solves the ty…