Geodesic
Generalized solutions of initial-boundary value problems for second-order hyperbolic systems
Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 51 (2011) no. 7, pp. 1280-1293 Cet article a éte moissonné depuis la source Math-Net.Ru

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The method of boundary integral equations is developed as applied to initial–boundary value problems for strictly hyperbolic systems of second-order equations characteristic of anisotropic media dynamics. Based on the theory of distributions (generalized functions), solutions are constructed in the space of generalized functions followed by passing to integral representations and classical solutions. Solutions are considered in the class of singular functions with discontinuous derivatives, which are typical of physical problems describing shock waves. The uniqueness of the solutions to the initial–boundary value problems is proved under certain smoothness conditions imposed on the boundary functions. The Green's matrix of the system and new fundamental matrices based on it are used to derive integral analogues of the Gauss, Kirchhoff, and Green formulas for solutions and solving singular boundary integral equations. 
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L. A. Alexeyeva; G. K. Zakir'yanova. Generalized solutions of initial-boundary value problems for second-order hyperbolic systems. Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki, Tome 51 (2011) no. 7, pp. 1280-1293. http://geodesic.mathdoc.fr/item/ZVMMF_2011_51_7_a8/

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