Spectral Theory

Spectral Theory The Asymptotic Behavior of the Solutions of the Wave Equation Concentrated near the Axis of a Two-Dimensional Waveguide in an Inhomogeneous Medium.- ? A Waveguide in an Inhomogeneous Medium.- ? The Construction of the Solutions of the Wave Equation Concentrated near the Waveguide Axis.- ? The Asymptotic Behavior of the Eigenfunctions and Eigenvalues of the Boundary Problem for the Waveguide.- Literature Cited.- Perturbations of the Spectrum of the Schroedinger Operator with a Complex Periodic Potential.- ? Preliminary Information.- ? Investigations of the Perturbed Operator.- ? Investigation of the Spectrum under the Condition $int{left ext{q}left( ext{x} ight) ight}{{ ext{e}}^{ ext{ }!!delta!! ext{ }left x ight}}dx$ Autor: M. Sh. Birman Wydawnictwo: Springer New York Rok wydania: 2012 Okładka: miękka Liczba stron: 100 Wymiary: 27.9 x 21.0 x 0.8 cm Język: angielski ISBN: 9781468475913