or non-smooth functions. Penalty and barrier methods transform the constrained nonlinear programming problem into an unconstrained or simpler constrained problem by adding penalty or barrier terms ...

Karimi, S. , & Vavasis, S. A. . (Accepted). Nonlinear conjugate gradient for smooth convex functions. Mathematical Programming - Computation. Retrieved from https ...

Abstract: In this article, we consider controlling a class of single-input–single-output (SISO) commensurate fractional-order nonlinear ... functions, such as the sign function, an auxiliary function ...