How to Define ”convex Functions” on Differentiable Manifolds
نویسندگان
چکیده
In the paper a class of families F(M) of functions defined on differentiable manifolds M with the following properties: 1F . if M is a linear manifold, then F(M) contains convex functions, 2F . F(·) is invariant under diffeomorphisms, 3F . each f ∈ F(M) is differentiable on a dense Gδ-set, is investigated.
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