Suchergebnisse - "Structure-preserving algorithm"
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A structure-preserving algorithm for Vlasov–Darwin system conserving charge, canonical momentum, and Hamiltonian
ISSN: 0021-9991Veröffentlicht: Elsevier Inc 01.10.2024Veröffentlicht in Journal of computational physics (01.10.2024)“… In this paper, a conservative numerical method for the Vlasov–Darwin system is proposed. The Darwin model was assumed to be valid only in the Coulomb gauge, …”
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Color image watermarking based on a fast structure-preserving algorithm of quaternion singular value decomposition
ISSN: 0165-1684, 1872-7557Veröffentlicht: Elsevier B.V 01.07.2023Veröffentlicht in Signal processing (01.07.2023)“… •Presents a new color image watermarking algorithm based on a fast structure-preserving algorithm of quaternion singular value decomposition …”
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Algebraic method for LU decomposition of dual quaternion matrix and its corresponding structure-preserving algorithm
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.11.2024Veröffentlicht in Numerical algorithms (01.11.2024)“… Based on the real structure-preserving algorithm of quaternion matrix, we propose the real structure-preserving algorithms of LU decomposition and partial pivoting LU decomposition for dual quaternion matrix …”
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Lagrange multiplier structure-preserving algorithm for time-fractional Allen-Cahn equation
ISSN: 0898-1221, 1873-7668Veröffentlicht: Elsevier Ltd 15.06.2024Veröffentlicht in Computers & mathematics with applications (1987) (15.06.2024)“… In this paper, based on the Lagrange multiplier method, we construct a maximum principle preserving scheme for the time-fractional Allen-Cahn equation of 2-α …”
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A complex structure-preserving algorithm for computing the singular value decomposition of a quaternion matrix and its applications
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.01.2024Veröffentlicht in Numerical algorithms (01.01.2024)“… This paper, by means of a complex representation of a quaternion matrix, studies the algorithm for the singular value decomposition of a quaternion matrix, and derives a complex structure-preserving …”
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Real structure‐preserving algorithm for quaternion equality constrained least squares problem
ISSN: 0170-4214, 1099-1476Veröffentlicht: Freiburg Wiley Subscription Services, Inc 15.05.2020Veröffentlicht in Mathematical methods in the applied sciences (15.05.2020)“… –preserving algorithm to obtain the solution of quaternion equality contained least squares problem …”
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An effective real structure-preserving algorithm for the quaternion indefinite least squares problem
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.08.2025Veröffentlicht in Numerical algorithms (01.08.2025)“… This paper concentrates on the quaternion indefinite least squares (QILS) problem. Firstly, we define the quaternion J-unitary matrix and the quaternion …”
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A complex structure-preserving algorithm for the full rank decomposition of quaternion matrices and its applications
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.12.2022Veröffentlicht in Numerical algorithms (01.12.2022)“… The numerical examples show that the complex structure-preserving algorithm is more efficient …”
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A new structure-preserving algorithm based on the semi-tensor product of matrices for split quaternion matrix LDU decomposition and its applications
ISSN: 0377-0427Veröffentlicht: Elsevier B.V 01.12.2024Veröffentlicht in Journal of computational and applied mathematics (01.12.2024)“… In this paper, we put forward a new structure-preserving algorithm based on the semi-tensor product of matrices for the split quaternion matrix LDU decomposition, which makes full use of high-level …”
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A novel structure-preserving algorithm for the singular value decomposition of biquaternion matrices
ISSN: 0308-1087, 1563-5139Veröffentlicht: Taylor & Francis 22.01.2025Veröffentlicht in Linear & multilinear algebra (22.01.2025)“… } $ Q structure-preserving algorithm to deal with the singular value decomposition of quaternion matrices, which makes use of high-level operations …”
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Structure-Preserving Algorithm and Its Error Estimate for the Relativistic Charged-Particle Dynamics Under the Strong Magnetic Field
ISSN: 0885-7474, 1573-7691Veröffentlicht: New York Springer US 01.09.2024Veröffentlicht in Journal of scientific computing (01.09.2024)“… To maintain the fundamental principles of relativistic dynamics, including energy conservation, volume preservation, and the Lorentz invariant property, we construct a structure-preserving algorithm …”
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An efficient real structure-preserving algorithm for the quaternion weighted least squares problem with equality constraint
ISSN: 1598-5865, 1865-2085Veröffentlicht: Berlin/Heidelberg Springer Berlin Heidelberg 01.12.2023Veröffentlicht in Journal of applied mathematics & computing (01.12.2023)“… ). Finally, for its minimal norm solution, we propose an efficient real structure-preserving algorithm by using the first column block of the real representation matrix, and provide three examples …”
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A real structure-preserving algorithm based on the quaternion QR decomposition for the quaternion equality constrained least squares problem
ISSN: 1017-1398, 1572-9265Veröffentlicht: New York Springer US 01.12.2022Veröffentlicht in Numerical algorithms (01.12.2022)“… , the special structure of the real representation matrices and the real structure-preserving algorithm of the quaternion QR …”
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Compact structure-preserving algorithm with high accuracy extended to the improved Boussinesq equation
ISSN: 0378-4754, 1872-7166Veröffentlicht: Elsevier B.V 01.12.2020Veröffentlicht in Mathematics and computers in simulation (01.12.2020)“… The improved Boussinesq equation is numerically studied using a higher-order compact finite difference technique. The aim is to achieve a mass and energy …”
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A structure-preserving algorithm for surface water flows with transport processes
ISSN: 1019-7168, 1572-9044Veröffentlicht: New York Springer US 01.02.2022Veröffentlicht in Advances in computational mathematics (01.02.2022)“… We consider a system of coupled equations modeling a shallow water flow with solute transport and introduce an artificial dissipation in order to improve the …”
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Dual complex structure-preserving algorithm of dual quaternion singular value decomposition and its applications
ISSN: 2238-3603, 1807-0302Veröffentlicht: 01.02.2025Veröffentlicht in Computational & applied mathematics (01.02.2025)Volltext
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Structure Preserving Algorithm for Fractional Order Mathematical Model of COVID-19
ISSN: 1546-2226, 1546-2218, 1546-2226Veröffentlicht: Henderson Tech Science Press 2022Veröffentlicht in Computers, materials & continua (2022)“… In this article, a brief biological structure and some basic properties of COVID-19 are described. A classical integer order model is modified and converted …”
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Dual complex structure-preserving algorithm of dual quaternion singular value decomposition and its applications: Dual complex structure-preserving
ISSN: 2238-3603, 1807-0302Veröffentlicht: Cham Springer International Publishing 01.02.2025Veröffentlicht in Computational & applied mathematics (01.02.2025)“… Innovative dual complex structure-preserving algorithms are introduced to develop efficient and resilient algorithms for singular value decomposition of dual quaternion matrices …”
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High-performance computing of structure-preserving algorithm for the coupled BBM system formulated by weighted compact difference operators
ISSN: 0378-4754, 1872-7166Veröffentlicht: Elsevier B.V 01.03.2023Veröffentlicht in Mathematics and computers in simulation (01.03.2023)“… A compact difference operator is a valuable technique which has been used to develop numerical schemes capable of solving various types of differential …”
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H∞ norm computation of linear continuous-time periodic systems by a structure-preserving algorithm
ISSN: 0020-7179, 1366-5820Veröffentlicht: Abingdon Taylor & Francis 02.01.2014Veröffentlicht in International journal of control (02.01.2014)“… A new reliable structure-preserving algorithm for computing H ∞ norm of linear continuous-time periodic systems is proposed in this paper …”
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