Convex functions 20 Mathematical optimization 4 Nonlinear theories 4 Univalent functions 4 Functional analysis 3 Star-like functions 3 Convex domains 2 Hamiltonian systems 2 Matrices 2 Nonlinear functional analysis 2 Perturbations (Mathematics) 2 Banach spaces 1 Convex geometry 1 Convex sets 1 Geometry, Non-Euclidean 1 Like functions 1 Mathematical analysis 1 Monotonic functions 1 Nonsmooth optimization 1 Star 1