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Generalized solutions of first order partial differential functional inequalities

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EN
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EN
The paper deals with initial boundary value problems for nonlinear first order partial differential functional equations. A theorem on the uniqueness of generalized solutions is proved. It is based on a comparison result for functional differential inequalities in the Carathéodory sense. A theorem on generalized solutions of functional differential inequalities is presented.
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autor
  • Gdansk University of Technology, Department of Differential Equations ul. G. Narutowicza, 80-952 Gdańsk, Poland, czernous@mif.pg.gda.pl
Bibliografia
  • [1] S. Cinquini, On hyperbolic systems of (nonlinear) partial differential equations in several independent variables, Ann. Mat. Pura Appl. 120(4) (1979), 201-214,in Italian.
  • [2] M. Cinquini Cibrario, New research on systems of nonlinear partial differential equations in several independent variables, Rend. Sem. Mat. Fis. Univ. Milano, 52 (1982), 531-550 , in Italian.
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  • [5] Z. Kamont, Hyperbolic functional differential inequalities and applications, Kluwer Academic Publishers, Dordrecht, 1999.
  • [6] Z. Kamont and H. Leszczyński, Uniqueness result for the generalized entropy solutions to the Cauchy problem for first-order partial differential-functional equations, Z. Anal. Anwendungen 13(3) (1994), 477-491.
  • [7] Z. Kamont and A. Salvadori, Uniqueness of solutions to hyperbolic functional-differential problems, Proceedings of the Second World Congress of Nonlinear Analysts, Part 7, Athens 1996, Nonlinear Anal. 30(7) (1997), 4585-4594 .
  • [8] G. S. Ladde, V. Lakshmikantham and A. S. Vatsala, Monotone iterative techniques for nonlinear differential equations, Pitman (Advanced Publishing Program), Boston, MA, 1985.
  • [9] V. Lakshmikantham and S. Leela, Differential and integral inequalities, Academic Press, New York and London, 1969.
  • [10] J. Szarski, Differential inequalities, Państwowe Wydawnictwo Naukowe, Warszawa, 1965.
  • [11] K. Topolski, On the uniqueness of viscosity solutions for first order partial differential functional equations, Ann. Polon. Math. 59(1) (1994), 65-75.
  • [12] K. Topolski, Classical methods for viscosity solutions of differential-functional inequalities, Nonlinear World 4(1) (1997), 1-17.
  • [13] T. D. Van, M. Tsuji and N. T. S. Duy, The Characteristic Method and Its Generalizations for First - Order Nonlinear Partial Differential Equations, Chapman and Hall/CRC, Boca Raton, London, 2000.
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bwmeta1.element.baztech-article-BUS5-0004-0016
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