Jensen, Affine, Conic, Quasiconvex, Convex Optimization.
fractal functions are not very important though the forms of these function as shown below: Let f1, f2,…,fn be convex functions defined in the same domain D. In that case the non-negative weighted sum of these functions, f(x) given by f(x)=w1f1(x)+w2f2(x)+…+wnfn(x) will also be a convex function,