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The Solvability of a New Boundary Value Problem with Derivatives on the Boundary Conditions for Forward-Backward Linear Systems Mixed of Keldysh Type in Multivariate Dimension

Received: 5 June 2015     Accepted: 16 June 2015     Published: 17 June 2015
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Abstract

The solvability of the boundary value problem for linear systems of the mixed hyperbolic-elliptic equations of Keldysh type in the multivariate domain with the changing time direction are studied. Applying methods of functional analysis, “ -regularizing”, continuation by the parameter and by means of prior estimates, the existence and uniqueness of generalized and regular solutions of a boundary value problem are established in a weighted Sobolev space.

Published in International Journal of Theoretical and Applied Mathematics (Volume 1, Issue 1)
DOI 10.11648/j.ijtam.20150101.11
Page(s) 1-9
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This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2015. Published by Science Publishing Group

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Keywords

Changing Time Direction, Weighted Sobolev Space, System Equations of Mixed Type, Weak, Strong and Regular Solution, Forward-Backward Linear Systems Mixed of Keldysh Type

References
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[9] Friedrichs, K. O. Symmetric positive linear differential equations. Comm. Pure Appl. Math. 11 (1958), 338–418.
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[11] S. Canic, B. L. Keyfitz, E. H. Kim, “Mixed hyperbolic-elliptic system in self-similar flows,” Bol. Soc. Brasil. Mat.(N.S.) vol. 32, no. 3, pp. 377–399, 2001.
[12] C. Somigliana. “Sui sisteme simmetrici di equazioni a derivate parziali,” Ann. Math. Pure et Appl., II, v. 22, pp.143-156, 1894.
[13] B. Pini, Un Problem Di Valoru ol Contorno Por un’equazional a Derivative Puzziali Def Terro Ardine Con Parto Principale Di Tipo Composite, Rend. Sem. Fas. Sci. Univ. Gagliaro, 27, 114, 1957.
[14] M.V. Keldysh, “ On certain classes of elliptic equations with singularity on the boundary of the domain, ,” Dokl. Akad. Nauk SSSR, 77, pp. 181–183, 1951.
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[16] Tersenov S.A. About a forward-backward equation of parabolic type. Novosibirsk, Nauka, 1985 (in Russian) .
[17] T.H. Otway, The Direchlet Problem For Elliptic-Hyperbolic Equations of Keldysh Type, Lecture Notes in Mathematics ISSN print edition:0075-8434, Springer Heidelberg Dordecht, London, New York, 2012.
[18] D. Lupo, C.S. Morawetz, K.K. Peyne, “On closed boundary value problems for equations of elliptic-hyperbolic type”, Commun. Pure. Appl. Math., vol. 60, pp.1319-1348, 2007.
[19] La’kin N.A, Novikov V.A.and Yonenko N.N. Nonlinear equations of variable type. Novosibirsk, 1983, Nauka.
[20] C. S. Morawetz,” A weak solution for a system of equations of elliptic-hyperbolic type,” Comm. Pure Appl. Math. Vol.11, pp. 315–331, 1958
[21] Nurmamedov M.A. On the solvability of the first local boundary value problems for linear systems equations of non-classical type with second order . Journal Doklad (Adigey) International Academy, Nalchik, 2008, v.10, №2, p.51-58 (in English)
[22] Nurmammadov M.A. The Existence and Uniqueness of a New Boundary Value Problem (Type of Problem ‘‘E’’) for Linear System Equations of the Mixed Hyperbolic-Elliptic Type in the Multivariate Dimension with the Changing Time Direction. Hindavi Publishing Cooperation, Abstract and Applied Analysis Volume 2015, Research Article ID 7036552 pp. 1-10 (in English)
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    Mahammad A. Nurmammadov. (2015). The Solvability of a New Boundary Value Problem with Derivatives on the Boundary Conditions for Forward-Backward Linear Systems Mixed of Keldysh Type in Multivariate Dimension. International Journal of Theoretical and Applied Mathematics, 1(1), 1-9. https://doi.org/10.11648/j.ijtam.20150101.11

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    ACS Style

    Mahammad A. Nurmammadov. The Solvability of a New Boundary Value Problem with Derivatives on the Boundary Conditions for Forward-Backward Linear Systems Mixed of Keldysh Type in Multivariate Dimension. Int. J. Theor. Appl. Math. 2015, 1(1), 1-9. doi: 10.11648/j.ijtam.20150101.11

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    AMA Style

    Mahammad A. Nurmammadov. The Solvability of a New Boundary Value Problem with Derivatives on the Boundary Conditions for Forward-Backward Linear Systems Mixed of Keldysh Type in Multivariate Dimension. Int J Theor Appl Math. 2015;1(1):1-9. doi: 10.11648/j.ijtam.20150101.11

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  • @article{10.11648/j.ijtam.20150101.11,
      author = {Mahammad A. Nurmammadov},
      title = {The Solvability of a New Boundary Value Problem with Derivatives on the Boundary Conditions for Forward-Backward Linear Systems Mixed of Keldysh Type in Multivariate Dimension},
      journal = {International Journal of Theoretical and Applied Mathematics},
      volume = {1},
      number = {1},
      pages = {1-9},
      doi = {10.11648/j.ijtam.20150101.11},
      url = {https://doi.org/10.11648/j.ijtam.20150101.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijtam.20150101.11},
      abstract = {The solvability of the boundary value problem for linear systems of the mixed hyperbolic-elliptic equations of Keldysh type in the multivariate domain with the changing time direction are studied. Applying methods of functional analysis, “ -regularizing”, continuation by the parameter and by means of prior estimates, the existence and uniqueness of generalized and regular solutions of a boundary value problem are established in a weighted Sobolev space.},
     year = {2015}
    }
    

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    AB  - The solvability of the boundary value problem for linear systems of the mixed hyperbolic-elliptic equations of Keldysh type in the multivariate domain with the changing time direction are studied. Applying methods of functional analysis, “ -regularizing”, continuation by the parameter and by means of prior estimates, the existence and uniqueness of generalized and regular solutions of a boundary value problem are established in a weighted Sobolev space.
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Author Information
  • Department of Natural Sciences and its Teaching Methods of Azerbaijan Teachers Institute (Brunch Guba), Azerbaijan, Baku

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