Discrete Neumann boundary value problem for a nonlinear equation with singular φ-Laplacian
نویسندگان
چکیده
which is a discrete analogue of the Neumann problem about the rotationally symmetric spacelike graphs with a prescribed mean curvature function in some Friedmann-Lemaître-Robertson-Walker (FLRW) spacetimes, whereψ (s) := ∫ s 0 dt g(t) ,ψ –1 is the inverse function ofψ , and H :R× [2,N – 1]Z →R is continuous with respect to the first variable. The proofs of the main results are based upon the Brouwer degree theory.
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تاریخ انتشار 2018