Results 31 to 40 of about 5,531 (199)

Parameter identification for nonlinear damping coefficient from large-amplitude ship roll motion using wavelets

Beni-Suef University Journal of Basic and Applied Sciences, 2017
In this paper, we have introduced an efficient Legendre wavelet spectral method (LWSM) to ship roll motion model for investigating the nonlinear damping coefficients.
D. Sathyaseelan, G. Hariharan, K. Kannan
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Traveling wave solution of fractional KdV-Burger-Kuramoto equation describing nonlinear physical phenomena

AIP Advances, 2014
In this paper, KdV-Burger-Kuramoto equation involving instability, dissipation, and dispersion parameters is solved numerically. The numerical solution for the fractional order KdV-Burger-Kuramoto (KBK) equation has been presented using two-dimensional ...
A. K. Gupta, S. Saha Ray
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Exact reconstruction with directional wavelets on the sphere [PDF]

, 2007
A new formalism is derived for the analysis and exact reconstruction of band-limited signals on the sphere with directional wavelets. It represents an evolution of the wavelet formalism developed by Antoine & Vandergheynst (1999) and Wiaux et al. (2005).
Abramowitz, Antoine, Antoine, Antoine, Antoine, Antoine, Barker, Bennett, Bevis, Bogdanova, Brink, Canny, Contaldi, Cruz, Daubechies, Davis, Demanet, Doroshkevich, Driscoll, Duval-Destin, Frazier, Freeden, Freeden, Freeman, Górski, Healy, Healy, Hindmarsh, Hinshaw, Holschneider, J. D. McEwen, Jeong, Jones, Kaiser, Komatsu, Kosowsky, Mallat, Maslen, McEwen, McEwen, Muschietti, Narcowich, O. Blanc, P. Vandergheynst, Ruhl, Simoncelli, Spergel, Spergel, Starck, Starck, Turok, Vandergheynst, Varshalovich, Vilenkin, Wandelt, Wiaux, Wiaux, Wiaux, Wyman, Wyman, Y. Wiaux   +60 more
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Multifractal detrended fluctuation analysis of nonstationary time series [PDF]

, 2002
We develop a method for the multifractal characterization of nonstationary time series, which is based on a generalization of the detrended fluctuation analysis (DFA).
Alados, Amaral, Armin Bunde, Arneodo, Arneodo, Arneodo, Arneodo, Arneodo, Ashkenazy, Ashkenazy, Bacry, Bahar, Barabási, Blesic, Buldyrev, Buldyrev, Bunde, Chen, Eva Koscielny-Bunde, Feder, H.Eugene Stanley, Hausdorff, Hu, Ivanov, Ivanov, Ivanova, Ivanova, Jaffard, Jan W. Kantelhardt, Kantelhardt, Kantelhardt, Koscielny-Bunde, Liu, Makse, Malamud, Mantegna, Muzy, Muzy, Nakao, Ossadnik, Peitgen, Peng, Peng, Shlesinger, Shlomo Havlin, Silchenko, Stephan A. Zschiegner, Talkner, Taqqu, Vandewalle, Vandewalle   +50 more
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Numerical solution of two-dimensional fractional order Volterra integro-differential equations

AIP Advances, 2021
The present paper is concerned with the implementation of the optimal homotopy asymptotic method to find the approximate solutions of two-dimensional fractional order Volterra integro-differential equations. The technique’s applicability and validity are
Sumbal Ahsan, Rashid Nawaz, Muhammad Akbar, Kottakkaran Sooppy Nisar, Kholod M. Abualnaja, Emad E. Mahmoud, Abdel-Haleem Abdel-Aty   +6 more
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Numerical Solution of Caputo-Fabrizio Time Fractional Distributed Order Reaction-diffusion Equation via Quasi Wavelet based Numerical Method [PDF]

Journal of Applied and Computational Mechanics, 2020
In this paper, we derive a novel numerical method to find out the numerical solution of fractional partial differential equations (PDEs) involving Caputo-Fabrizio (C-F) fractional derivatives. We first find out the approximation formula of C-F derivative
Sachin Kumar, José Francisco Gómez-Aguilar   +1 more
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Convergence analysis of the Chebyshev-Legendre spectral method for a class of Fredholm fractional integro-differential equations

, 2018
In this paper, we propose and analyze a spectral Chebyshev-Legendre approximation for fractional order integro-differential equations of Fredholm type. The fractional derivative is described in the Caputo sense.
Babolian, E., Javadi, S., Moradi, E., Yousefi, A.   +3 more
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3D weak lensing with spin wavelets on the ball [PDF]

, 2015
We construct the spin flaglet transform, a wavelet transform to analyze spin signals in three dimensions. Spin flaglets can probe signal content localized simultaneously in space and frequency and, moreover, are separable so that their angular and radial
Kitching, Thomas D., Leistedt, Boris, McEwen, Jason D., Peiris, Hiranya V.   +3 more
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Wavelet transform modulus maxima based fractal correlation analysis

, 2007
The wavelet transform modulus maxima (WTMM) used in the singularity analysis of one fractal function is extended to study the fractal correlation of two multifractal functions.
33, A. Sharif, Brown, Chhabra, Cohen, Cole, D. C. Lin, Fortrat, Hentschel, Jaffard, Kravchenko, Lévy-Léhel, Mallat, Matteo, Meneveau, Meneveau, Muzy, Muzy, Riedi, Zeleke   +19 more
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Wavelet Collocation Method for Solving Multiorder Fractional Differential Equations

Journal of Applied Mathematics, 2012
The operational matrices of fractional-order integration for the Legendre and Chebyshev wavelets are derived. Block pulse functions and collocation method are employed to derive a general procedure for forming these matrices for both the Legendre and the
M. H. Heydari, M. R. Hooshmandasl, F. M. Maalek Ghaini, F. Mohammadi   +3 more
doaj   +1 more source