Geodesic
Boundary value problems for a nonlinear elliptic equation
Sbornik. Mathematics, Tome 208 (2017) no. 6, pp. 842-862 Cet article a éte moissonné depuis la source Math-Net.Ru

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It is proved that the Dirichlet and Neumann problems for a nonlinear second-order elliptic equation have infinitely many solutions. The spectrum of these problems is studied and the weak convergence of the normed eigenfunctions to zero is established. Bibliography: 10 titles.
Keywords: nonlinear elliptic equation, Dirichlet problem, Neumann problem, eigenfunctions. 
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Yu. V. Egorov. Boundary value problems for a nonlinear elliptic equation. Sbornik. Mathematics, Tome 208 (2017) no. 6, pp. 842-862. http://geodesic.mathdoc.fr/item/SM_2017_208_6_a4/

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