Results 21 to 30 of about 137,521 (152)
EPJ Web of Conferences, 2015 The report presents the development of the time-boundary element methodology and a description of the related software based on a stepped method of numerical inversion of the integral Laplace transform in combination with a family of Runge-Kutta methods ...
Igumnov Leonid +3 more
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Кібернетика та комп'ютерні технології, 2020 Introduction. In many applied problems, such as statistical data processing, digital filtering, computed tomography, pattern recognition, and many others, there is a need for numerical integration, moreover, with a given (often quite high) accuracy ...
V.K. Zadiraka +2 more
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A new numerical method for obtaining gluon distribution functions $G(x,Q^2)=xg(x,Q^2)$, from the proton structure function $F_2^{\gamma p}(x,Q^2)$ [PDF]
, 2009 An exact expression for the leading-order (LO) gluon distribution function $G(x,Q^2)=xg(x,Q^2)$ from the DGLAP evolution equation for the proton structure function $F_2^{\gamma p}(x,Q^2)$ for deep inelastic $\gamma^* p$ scattering has recently been ...
A. Martin +17 more
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Asymptotic expansions and fast computation of oscillatory Hilbert transforms [PDF]
, 2011 In this paper, we study the asymptotics and fast computation of the one-sided oscillatory Hilbert transforms of the form $$H^{+}(f(t)e^{i\omega t})(x)=-int_{0}^{\infty}e^{i\omega t}\frac{f(t)}{t-x}dt,\qquad \omega>0,\qquad x\geq 0,$$ where the bar ...
Huybrechs, Daan +2 more
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MathematicsA new numerical method for solving Volterra non-linear convolution integral equations (NLCVIEs) of the second kind is presented in this work. This new approach, named IIRFM-A, is based on the combined use of the Laplace transformation, a first-order ...
Rodolphe Heyd
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An uncoupled thermoelasticity problem for a semi-infinite layer with regard to its proper weight
Fracture and Structural Integrity, 2019 The exact solution of the uncoupled thermoelasticity problem for a semi-infinite elastic layer with regard to its proper weight was constructed. The originality of the proposed paper is based on reducing Lame equations to two jointly and one separately ...
A. Fesenko, N. Vaysfeld
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Computing the Gamma function using contour integrals and rational approximations [PDF]
, 2005 Some of the best methods for computing the gamma function are based on numerical evaluation of Hankel's contour integral. For example, Temme evaluates this integral based on steepest-decent contours by the trapezoid rule.
Schmelzer, Thomas, Trefethen, Lloyd N.
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Fractal and FractionalIn this work, we introduce an innovative analytical–numerical approach to solving nonlinear fractional differential equations by integrating the homotopy perturbation method with the new integral transform.
Aisha F. Fareed +3 more
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پژوهشهای ریاضی, 2020 Introduction For the scientific study of a natural phenomenon it must be modeled. The resulting model is often expressed as a differential equation (DE), an integral equation (IE) or an integro-differential equation (IDE) or a system of these. Therefore,
Ahmad Molabahrami
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Convective Flow of Blood in Square and Circular Cavities
Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2018 In this study, the fully developed, steady, laminar ow of blood is studied in a long pipe with square and circular cross-sections subjected to a magnetic field generated by an electric wire.
Senel P., Tezer-Sezgin M.
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