nonconvexity
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Convexity in economics — Economics … Wikipedia
Non-convexity (economics) — In economics, non convexity refers to violations of the convexity assumptions of elementary economics. Basic economics textbooks concentrate on consumers with convex preferences (that do not prefer extremes to in between values) and convex budget … Wikipedia
Star polyhedron — In geometry, a star polyhedron is a polyhedron which has some repetitive quality of nonconvexity giving it a star like visual quality.There are two general kinds of star polyhedron: *Polyhedra which self intersect in a repetitive way. *Concave… … Wikipedia
Claude Lemaréchal — is a French applied mathematician. In mathematical optimization, Claude Lemaréchal is known for his work in numerical methods for nonlinear optimization, especially for problems with nondifferentiable kinks. Lemaréchal and Phil. Wolfe pioneered… … Wikipedia
