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СЕМИНАРЫ |
Семинар лаборатории теории функций "Современные проблемы комплексного анализа"
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On the spectrum of the discrete Laplacian under small perturbations F. A. Madataova National University of Uzbekistan named after M. Ulugbek, Tashkent |
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Аннотация: The aim of research work is to find a sufficient condition for the existence of eigenvalues of discrete Schrödinger operator with finite-range potential on a lattice, to determine the location of the essential spectrum, and to analyze the eigenvalues of the operators. In this talk we determine the location of the essential spectrum of the discrete Schrödinger operator with a point potential on a Website: https://us02web.zoom.us/j/8022228888?pwd=b3M4cFJxUHFnZnpuU3kyWW8vNzg0QT09 |