Abstract
The paper consists of two parts. The first part deals with the solvability of new boundary-value problems for the model quasihyperbolic equations (−1)p D t 2p u = Au + f(x, t), where p > 1, for a self-adjoint second-order elliptic operator A. For the problems under study, the existence and uniqueness theorems are proved for regular solutions. In the second part, the results obtained in the first part are somewhat sharpened and generalized.
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References
V. N. Vragov, “On the theory of boundary-value problems for equations ofmixed type in space,” Differ. Uravn. 13 (6), 1098–1105 (1977).
V. N. Vragov, “On the statement and solvability of boundary-value problems for equations of mixedcompound type,” in Mathematical Analysis and Related Problems of Mathematics (Nauka, Novosibirsk, 1978), pp. 5–13 [in Russian].
I. E. Egorov and V. E. Fedorov, Nonclassical Higher-Order Equations in Mathematical physics (Computer Center, Russian Academy of Sciences, Sibirsk. Branch, Novosibirsk, 1995) [in Russian].
A. N. Terekhov, “the boundary-value problem of equations ofmixed type. Functional analysismethods used to solve problems ofmathematical physics and computationalmathematics,” in Collection of Scientific Papers (Inst.Math., Russian Academy of Sciences, Sibirsk. Branch, Novosibirsk, 1979), pp. 128–137 [in Russian].
I. E. Egorov and T. I. Zakharova, “On the Fredholm property of the boundary-value problem for equations of mixed type,” Mat. Zametki, Yakutsk State Univ. 20 (1), 20–26 (2013).
I. E. Egorov, “On the boundary-value problem of equations of mixed type with a spectral parameter,” Mat. Zametki, Northeast Federal Univ. 21 (1), 11–17 (2014).
A. I. Kozhanov and E. F. Sharin, “A conjugate problem for some nonclassical higher-order differential equations,” Ukr. Mat. Visn. 11 (2), 181–202 (2014).
A. I. Kozhanov and E. F. Sharin, “A conjugate problem for some nonclassical higher-order differential equations. II,” Mat. Zametki, Northeast Federal Univ. 21 (1), 18–28 (2014).
A. I. Kozhanov, “On uniqueness of solutions of boundary-value problems for some classes of higher-order equations of mixed type,” Uzbek. Mat. Zh., No. 4, 90–98 (2014).
V. S. Vladimirov, Equations of Mathematical Physics (Nauka, Moscow, 1988) [in Russian].
L. C. Evans, Partial Differential Equations (Tamara Rozhkovskaya, Novosibirsk, 2003) [in Russian].
M. A. Naimark, Linear Differential Operators (Nauka, Moscow, 1969) [in Russian].
S. K. Godunov, Ordinary Differential Equations with Constant Coefficients, Vol. 1: Boundary-Value Problems (Izd. Novosibirsk Univ., Novosibirsk, 1994) [in Russian].
V. A. Trenogin, Functional Analysis (Nauka, Moscow, 1980) [in Russian].
O. A. Ladyzhenskaya and N. N. Ural’tseva, Linear and Quasilinear Equations of Elliptic Type (Nauka, Moscow, 1973) [in Russian].
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Original Russian Text © A. I. Kozhanov, N. R. Pinigina, 2017, published in Matematicheskie Zametki, 2017, Vol. 101, No. 3, pp. 403–412.
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Kozhanov, A.I., Pinigina, N.R. Boundary-value problems for some higher-order nonclassical differential equations. Math Notes 101, 467–474 (2017). https://doi.org/10.1134/S0001434617030087
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DOI: https://doi.org/10.1134/S0001434617030087