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Journal of Differential Equations, ISSN 0022-0396, 12/2016, Volume 261, Issue 11, pp. 6221 - 6232
In this paper we obtain bounds on the real and imaginary parts of non-real eigenvalues of a non-definite Sturm... 
Indefinite | Dirichlet problem | Non-definite | Non-real eigenvalues | Turning point | Spectrum | MATHEMATICS
Journal Article
Boundary Value Problems, ISSN 1687-2770, 12/2019, Volume 2019, Issue 1, pp. 1 - 12
Journal Article
Electronic Journal of Qualitative Theory of Differential Equations, ISSN 1417-3875, 2017, Volume 2017, Issue 18, pp. 1 - 14
The present paper deals with non-real eigenvalues of regular Sturm-Liouville problems with odd symmetry indefinite weight functions applying the two-parameter method... 
Eigencurve | Indefinite weight function | Non-real eigenvalue | Sturm–Liouville problem | EXISTENCE | MATHEMATICS, APPLIED | INSTABILITY | 2ND-ORDER | PARAMETERS | OSCILLATION | non-real eigenvalue | MATHEMATICS | Sturm-Liouville problem | indefinite weight function | BOUNDS | eigencurve | LINEAR-DIFFERENTIAL EQUATIONS | OPERATORS | sturm–liouville problem
Journal Article
Journal of Spectral Theory, ISSN 1664-039X, 2014, Volume 4, Issue 1, pp. 53 - 63
The present paper gives a priori bounds on the possible non-real eigenvalues of regular indefinite Sturm-Liouville problems and obtains sufficient conditions... 
Indefinite sturm-Liouville problem | A priori bound | Non-real eigenvalue | non-real eigenvalue | MATHEMATICS | MATHEMATICS, APPLIED | 2ND-ORDER | PARAMETERS | LINEAR-DIFFERENTIAL EQUATIONS | OPERATORS | OSCILLATION | indefinite Sturm-Liouville problem
Journal Article
Journal of Differential Equations, ISSN 0022-0396, 10/2013, Volume 255, Issue 8, pp. 2291 - 2301
The present paper deals with non-real eigenvalues of regular indefinite Sturm–Liouville problems. A priori bounds and sufficient conditions of the existence... 
Eigencurve method | Non-real eigenvalue | Indefinite Sturm–Liouville problem | Indefinite Sturm-Liouville problem | MATHEMATICS | 2ND-ORDER | PARAMETERS | LINEAR-DIFFERENTIAL EQUATIONS | OSCILLATION | OPERATORS
Journal Article
by Sun, F
Resultate der Mathematik, ISSN 1422-6383, 06/2020, Volume 75, Issue 3
The present paper deals with the non-real eigenvalues of one dimensional p-Laplacian problem with an indefinite weight... 
non-real eigenvalue | MATHEMATICS | MATHEMATICS, APPLIED | p-Laplacian | STURM-LIOUVILLE OPERATORS | indefinite weight | SPECTRAL BOUNDS | Nonlinear eigenvalue problem
Journal Article
Applied Mathematics Letters, ISSN 0893-9659, 10/2015, Volume 48, pp. 143 - 149
The present paper gives a priori bounds on the possible non-real eigenvalues to indefinite eigenvalue problems for one-dimensional p-Laplacian under the integrability conditions... 
Indefinite weight | A priori bound | [formula omitted]-Laplacian | Non-real eigenvalue | Nonlinear eigenvalue problem | p-Laplacian | MATHEMATICS, APPLIED | STURM-LIOUVILLE PROBLEMS
Journal Article
Proceedings of the American Mathematical Society, ISSN 0002-9939, 02/2016, Volume 144, Issue 2, pp. 547 - 559
The present paper gives a priori upper and lower bounds on non-real eigenvalues of regular indefinite Sturm-Liouville problems only under the integrability conditions... 
Krein space | A priori bounds | Non-real eigenvalue | Indefinite Sturm-Liouville problem | non-real eigenvalue | MATHEMATICS | MATHEMATICS, APPLIED | LINEAR-DIFFERENTIAL EQUATIONS | a priori bounds | OSCILLATION | OPERATORS
Journal Article
Journal of Differential Equations, ISSN 0022-0396, 06/2019, Volume 267, Issue 1, pp. 468 - 493
... (under suitable additional assumptions on the real coefficients 1/p,q,r∈Lloc1(R)) of isolated eigenvalues with finite algebraic multiplicity which are symmetric with respect to the real line... 
Krein space | Non-real eigenvalue | Indefinite Sturm–Liouville operator | MATHEMATICS | Indefinite Sturm-Liouville operator | ORDINARY DIFFERENTIAL-OPERATORS | NON-REAL EIGENVALUES
Journal Article
Electronic Journal of Differential Equations, ISSN 1072-6691, 03/2016, Volume 2016, Issue 82, pp. 1 - 9
In this article, we give a priori bounds on the possible non-real eigenvalue of regular fourth-order boundary value problem with indefinite weight function and obtain a sufficient conditions... 
A priori bound | Non-real eigenvalue | Indefinite weight function | non-real eigenvalue | MATHEMATICS | MATHEMATICS, APPLIED | a priori bound | indefinite weight function | STURM-LIOUVILLE PROBLEMS | OPERATORS | OSCILLATION
Journal Article
Proceedings of the American Mathematical Society, ISSN 0002-9939, 09/2018, Volume 146, Issue 9, pp. 3935 - 3942
...\in L^1(\mathbb{R}) covers the whole real line, and, in addition, non-real eigenvalues may appear if the potential q assumes negative values... 
MATHEMATICS | MATHEMATICS, APPLIED | indefinite Sturm-Liouville operator | NON-REAL EIGENVALUES | Krein space | Birman-Schwinger principle | ORDINARY DIFFERENTIAL-OPERATORS | Non-real eigenvalue
Journal Article
Proceedings of the American Mathematical Society, ISSN 0002-9939, 2018, Volume 146, Issue 9, pp. 3935 - 3942
Journal Article
Journal of Differential Equations, ISSN 0022-0396, 2002, Volume 186, Issue 1, pp. 186 - 229
We investigate the spectrum of a typical non-self-adjoint differential operator AD=− d 2/ dx 2⊗ A acting on L 2(0,1)⊗ C 2 , where A is a 2×2 constant matrix.... 
Spectral theory of non-self-adjoint operators | Non-real eigenvalues | Differential operators | non-real eigenvalues | MATHEMATICS | differential operators | spectral theory of non-self-adjoint operators | SCHRODINGER-OPERATORS
Journal Article
Journal Article
2007 IEEE Wireless Communications and Networking Conference, ISSN 1525-3511, 03/2007, pp. 1051 - 1056
...). For this matrix, we derive closed-form expressions for the characteristic polynomial, eigenvalues, and eigenvectors... 
Electrical engineering | Fading | Communication systems | Communications Society | Closed-form solution | Eigenvalues and eigenfunctions | Polynomials | Matrices | Non-real-valued uniform correlation matrix | Generalized semiuniform matrix | Diversity
Conference Proceeding
Journal of Property Investment & Finance, ISSN 1463-578X, 04/2014, Volume 32, Issue 3, pp. 244 - 255
Journal Article
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