For citations:

Solov’ev P.S. Approximation of positive solutions of symmetric eigenvalue problems with nonlinear dependence on the spectral parameter. Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika. 2024;(8):94-99. (In Russ.) https://doi.org/10.26907/0021-3446-2024-8-94-99