Nonlocal Problem with Multipoint Perturbations of the Birkhoff Strongly Regular Boundary Conditions for an Even-Order Differential Operator
نویسندگان
چکیده
We study spectral properties of a nonself-adjoint problem for (2n) th order operator differentiation with nonlocal conditions representing multipoint perturbations the Birkhoff strongly regular self-adjoint conditions. establish sufficient under which system eigenfunctions is complete and, certain additional assumptions, forms Riesz basis. construct set transformation operators, each element maps unperturbed into isospectral problem. The cases problems and irregular two-point are analyzed. Finally, we existence uniqueness solution studied
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1 Department of Mathematics, Faculty of Sciences, Razi University, Kermanshah 67149, Iran 2Department of Mathematics and Computer Sciences, Faculty of Art and Sciences, Cankaya University, 06530 Ankara, Turkey 3 Institute of Space Sciences, P.O. BOX MG-23, 76900 Magurele, Bucharest, Romania 4Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, P.O...
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ژورنال
عنوان ژورنال: Journal of Mathematical Sciences
سال: 2023
ISSN: ['1072-3374', '1573-8795']
DOI: https://doi.org/10.1007/s10958-023-06330-3