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pro vyhledávání: '"J. E. De la Paz Méndez"'
Publikováno v:
Contemporary Mathematics. Fundamental Directions. 68:653-670
In the present work, we give an explicit solution of the Dirichlet boundary-value problem for the Helmholtz equation in a nonconvex angle with periodic boundary data. We present uniqueness and existence theorems in an appropriate functional class and