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• òÅÆÅÒÁÔÙ ....... 275 (.pdf)

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Contents
• Babich V. M., Babich M. V. Space-time ray method and quasiphotons of whispering gallery ....... 5
• Granovskiy Ya. I., Malamud M. M. Sturm--Liouville operators with $W^{-1,1}$-matrix potentials ....... 20
• Demchenko M. N. Asymptotic properties of solutions to a certain ultrahyperbolic equation ....... 40
• Korikov D. V. On the unitary invariants of the family of one-dimensional subspaces ....... 65
• Lunev A., Malamud M. On characteristic determinants of boundary value problems for Dirac type systems ....... 69
• Lyalinov M. A., Fedorov N. S. Eigenfunctions of the essential spectrum of the Laplace operator in an angle with the Robin--Neumann boundary conditions ....... 121
• Mishulovich A. A. Homogenization of the multidimensional parabolic equations with periodic coefficients at the edge of a spectral gap ....... 135
• Nazarov S. A. Asymptotic analysis of the spectrum of a quantum waveguide with a wide Neumann ``window'' in the light of mechanics of cracks ....... 176
• Poretsky A. S., Plamenevsky B. A., Sarafanov O. V. A method for approximate computation of the scattering matrix in acoustic diffraction gratings ....... 238
• Popov M. M. Asymptotic solutions of the wave equation localized in a tabular vicinity of the geodesics and the Fock problem in $3D$ ....... 253
• Popov M. M. Greeping waves in the chadow area of the $3D$ Fock problem ....... 267
• Reviews ....... 275

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• Paging 280 pp.

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