Results 281 to 290 of about 274,119 (324)

Moments of Discrete Distributions via a Differential Operator

Journal of Mathematical Sciences, 2013
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Murat, M., Szynal, D.
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Anisotropic Edge Pseudo — Differential Operators with Discrete Asymptotics

Mathematische Nachrichten, 1997
AbstractAn anisotropic pseudo — differential calculus aimed at solving parabolic differential and pseudo — differential equations in terms of Volterra pseudo–differential operators was studied by Piriou for spatial variables on a closedC∞– manifold. Such a program also makes sense when the spatial variables run over a manifold with edges.
Buchholz, Thilo, Schulze, Bert-Wolfgang (Prof. Dr.)   +1 more
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Discrete Analogues of High Order Differential Operators

Journal of Mathematical Sciences
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Shadimetov, Kh. M., Azamov, S. S.
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Continuous/Discontinuous Galerkin Difference Discretizations of High-Order Differential Operators

Journal of Scientific Computing, 2022
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J. W. Banks, B. Brett Buckner, T. Hagstrom   +2 more
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Discrete variable representations of differential operators

The Journal of Chemical Physics, 1993
By making use of known properties of orthogonal polynomials the discrete variable representation (DVR) method [J. C. Light, I. P. Hamilton, and J. V. Lill, J. Chem. Phys. 82, 1400 (1985)] has been rederived. Simple analytical formulas have been obtained for the matrix elements of DVRs of differential operators which may appear in the rovibrational ...
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Wavelet adaptive algorithm for discrete pseudo-differential operators

2023
Summary: In this study, we examine biorthogonal wavelets that are tailored to a specific discrete pseudo-differential equation of the form \(T_\sigma u = f\), where \(T_\sigma\) is an invertible discrete pseudo-differential operator defined on the lattice \(\mathbb{Z}^n\) for every \(f\in\ell^2(\mathbb{Z}^n)\).
Kadkhoda, Nematollah, Koozehgar, Morteza
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Discrete differential operators on a class of lattices

Journal of Computational Science, 2020
Abstract Lattice differential operators are known to preserve key properties of their analytical counterpart, such as isotropy, fundamental vector identities due to the symmetries of the discrete kinetic lattice. Here, we present the idea of discrete lattice operators derived on a body-centered-cubic (BCC) lattice.
Mahan Raj Banerjee, Rashmi Ramadugu, Santosh Ansumali   +2 more
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Matrix representations of discrete differential operators and operations in electromagnetism

Annals of Mathematical Sciences and Applications, 2019
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Huang, Tsung-Ming, Lin, Wen-Wei, Wang, Weichung   +2 more
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Parallel discrete differential dynamic programming for multireservoir operation

Environmental Modelling & Software, 2014
The curse of dimensionality and computational time cost are a great challenge to operation of large-scale hydropower systems (LSHSs) in China because computer memory and computational time increase exponentially with increasing number of reservoirs. Discrete differential dynamic programming (DDDP) is one of the most classical algorithms for alleviating
Chuntian Cheng, Sen Wang, Kwok-Wing Chau, Xinyu Wu   +3 more
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Discrete Differential Operators for Computer Graphics

2004
This thesis presents a family of discrete differential operators. Since these operators are derived taking into account the continuous notions of differential geometry, they possess many similar properties. This family consists of first- and second-order properties, both geometric and parametric. These operators are then analyzed and their practical
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