This volume collects the expanded notes of four series of lectures given
on the occasion of the CIME course on Nonlinear Optimization held in
Cetraro, Italy, from July 1 to 7, 2007. The Nonlinear Optimization
problem of main concern here is the problem n of determining a vector of
decision variables x ? R that minimizes (ma- n mizes) an objective
function f(-): R ? R, when x is restricted to belong n to some feasible
setF? R, usually described by a set of equality and - n n m equality
constraints: F = {x ? R: h(x)=0, h(-): R ? R; g(x) ? 0, n p g(-): R ? R
}; of course it is intended that at least one of the functions f, h, g
is nonlinear. Although the problem canbe stated in verysimpleterms, its
solution may result very di?cult due to the analytical properties of the
functions involved and/or to the number n, m, p of variables and
constraints. On the other hand, the problem has been recognized to be of
main relevance in engineering, economics, and other applied sciences, so
that a great lot of e?ort has been devoted to develop methods and
algorithms able to solve the problem even in its more di?cult and large
instances. The lectures have been given by eminent scholars, who
contributed to a great extent to the development of Nonlinear
Optimization theory, methods and algorithms. Namely, they are: -
Professor Immanuel M.