Results 31 to 40 of about 697,634 (341)
Delta basis functions and their applications for solving two-dimensional linear fredholm integral equations [PDF]
Journal of Hyperstructures, 2015 In this paper an expansion method, based on twodimensional delta functions (2D-DFs), is developed to find numerical solutions of two-dimensional linear Fredholm integral equations.
F. Mirzaee +2 more
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DIRAC OPERATOR IN MATRIX GEOMETRY [PDF]
International Journal of Geometric Methods in Modern Physics, 2005 We review the construction of the Dirac operator and its properties in Riemannian geometry, and show how the asymptotic expansion of the trace of the heat kernel determines the spectral invariants of the Dirac operator and its index. We also point out that the Einstein–Hilbert functional can be obtained as a linear combination of the first two ...
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Using modified two-dimensional block-pulse functions for the numerical solution of nonlinear two-dimensional volterra integral equations [PDF]
Journal of Hyperstructures, 2014 In this paper, the Modified two-dimensional block-pulse functions (M2D-BFs) are used as a new set of basis functions for expanding two-dimensional functions. The main properties of M2DBFs are determined and an operational matrix for integration obtained.
F. Mirzaee, Elham Hadadiyan
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, 2015 We present a high-order shifted Gegenbauer pseudospectral method (SGPM) to solve numerically the second-order one-dimensional hyperbolic telegraph equation provided with some initial and Dirichlet boundary conditions.
Elgindy, Kareem T.
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Evaluation of management strategies for the operation of high-speed railways in China [PDF]
, 2002 High-Speed Train (HST) operations have recently been introduced in rail passenger transportation markets worldwide. Although the technologies for such operations have levelled at speeds of around 300 km/h, the operating parameters to be adopted in each ...
Ferreira, Luis +4 more
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Journal of Taibah University for Science, 2020 In this article, we introduce a numerical technique for solving a class of multi-term variable-order fractional differential equation. The method depends on establishing a shifted Jacobi operational matrix (SJOM) of fractional variable-order derivatives.
A. A. El-Sayed, D. Baleanu, P. Agarwal
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Numerical Solution of Calculus of Variations by using the Second Chebyshev Wavelets [PDF]
Engineering and Technology Journal, 2012 In this paper the second Chebyshev wavelets expansions with the operational matrix is applied for solving calculus of variational problems , with the aid of spectral method to reduce the variational problems in to a solution set of algebraic equations ...
Suha Najeeb Shihab +1 more
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AIMS Mathematics, 2021 This article presents a novel numerical method for seeking the numerical solutions of fractional order differential equations using hybrid functions consisting of block-pulse functions and Taylor polynomials.
Hailun Wang, Fei Wu, Dongge Lei
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Towards absolute neutrino masses [PDF]
, 2006 Various ways of determining the absolute neutrino masses are briefly reviewed and their sensitivities compared. The apparent tension between the announced but unconfirmed observation of the $0\nu\beta\beta$ decay and the neutrino mass upper limit based ...
Bahcall +11 more
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Matrix valued p-convolution operators [PDF]
Operators and Matrices, 2020 Let \(G\) be a locally compact group with Haar measure, and let \(M_n\) be the set of \(n \times n\) matrices, with the \(C^{\ast}\)-norm, over the complex numbers. Throughout this review \(p\) will denote a real number strictly greater than one. We will write \(L^p(G, M_n)\) to indicate the space of \(p\)-integrable functions from \(G\) into \(M_n ...
Ebadian, Ali, Jabbari, Ali
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