Results 131 to 140 of about 475,064 (272)
Bounds for sine and cosine via eigenvalue estimation
Special Matrices, 2014 Define n × n tridiagonal matrices T and S as follows: All entries of the main diagonal of T are zero and those of the first super- and subdiagonal are one.
Haukkanen Pentti +3 more
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Complex Factorizations of the Lucas Sequences via Matrix Methods
Journal of Applied Mathematics, 2014 Firstly, we show a connection between the first Lucas sequence and the determinants of some tridiagonal matrices. Secondly, we derive the complex factorizations of the first Lucas sequence by computing those determinants with the help of Chebyshev ...
Honglin Wu
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Eigenvalue Curves of Asymmetric Tridiagonal Matrices [PDF]
, 2000 Ilya Goldsheid, Boris A. Khoruzhenko
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Tridiagonal M-matrices whose group inverses are tridiagonal
Linear Algebra and its ApplicationsThis work has been partially supported by the Spanish Research Council (Ministerio de Ciencia e Innovación) under project PID2021-122501NB-I00, by the Universitat Politècnica de Catalunya under funds AGRUPS-UPC 2023 and 2024. K. Kranthi Priya is supported by an International Immersion Experience (IIE) Program and a research grant from the Office of ...
Encinas Bachiller, Andrés Marcos +2 more
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Reversibility of linear cellular automata with intermediate boundary condition
AIMS MathematicsThis paper focuses on the reversibility of multidimensional linear cellular automata with an intermediate boundary condition. We begin by addressing the matrix representation of these automata, and the question of reversibility boils down to the ...
Chih-Hung Chang +2 more
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A fourth-order arithmetic average compact finite-difference method for nonlinear singular elliptic PDEs on a 3D smooth quasi-variable grid network. [PDF]
MethodsX, 2023 Jha N, Singh B.
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On tridiagonal matrices unitarily equivalent to normal matrices
Linear Algebra and its Applications, 2010 AbstractIn this article the unitary equivalence transformation of normal matrices to tridiagonal form is studied.It is well-known that any matrix is unitarily equivalent to a tridiagonal matrix. In case of a normal matrix the resulting tridiagonal inherits a strong relation between its super- and subdiagonal elements.
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Tridiagonal Symmetries of Models of Nonequilibrium Physics
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We study the boundary symmetries of models of nonequilibrium physics where the steady state behaviour strongly depends on the boundary rates. Within the matrix product state approach to many-body systems the physics is described in terms of matrices ...
Boyka Aneva
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Reduced QED with Few Planes and Fermion Gap Generation. [PDF]
Entropy (Basel), 2023 Gorbar EV, Gusynin VP, Parymuda MR.
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The eigenvalues of some anti-tridiagonal Hankel matrices
Kuwait Journal of Science, 2018 We determine the spectra of two families of anti-tridiagonal Hankel matrices of any order. The approach is much stronger and more concise than those particular cases appearing in the literature.
Carlos Fonseca
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