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159 results on '"Allouch C"'

1. Legendre Spectral Solution of Weakly Singular Hammerstein Integral Equations

Author

Arrai, M., Allouch, C., Boujraf, A., Castro, Carlos, Editor-in-Chief, Formaggia, Luca, Editor-in-Chief, Groppi, Maria, Series Editor, Larson, Mats G., Series Editor, Lopez Fernandez, Maria, Series Editor, Morales de Luna, Tomás, Series Editor, Pareschi, Lorenzo, Series Editor, Vázquez-Cendón, Elena, Series Editor, Zunino, Paolo, Series Editor, Sbibih, Driss, editor, Remogna, Sara, editor, and Serghini, Abdelhafid, editor

Published
2024
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2. Quasi Interpolation Methods for Linear Volterra Integral Equations

Author

Allouch, C., Sbibih, D., Tahrichi, M., Castro, Carlos, Editor-in-Chief, Formaggia, Luca, Editor-in-Chief, Groppi, Maria, Series Editor, Larson, Mats G., Series Editor, Lopez Fernandez, Maria, Series Editor, Morales de Luna, Tomás, Series Editor, Pareschi, Lorenzo, Series Editor, Vázquez-Cendón, Elena, Series Editor, Zunino, Paolo, Series Editor, Sbibih, Driss, editor, Remogna, Sara, editor, and Serghini, Abdelhafid, editor

Published
2024
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13. Estimation of Integral Properties of a Planar Closed Curve Based on a Quadratic Spline Quasi-Interpolant

Author

Allouch, C., Sablonnière, P., Sbibih, D., Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Boissonnat, Jean-Daniel, editor, Chenin, Patrick, editor, Cohen, Albert, editor, Gout, Christian, editor, Lyche, Tom, editor, Mazure, Marie-Laurence, editor, and Schumaker, Larry, editor

Published
2012
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19. New test for the diagnosis of bacterial endophthalmitis

Author

Goldschmidt, P., Degorge, S., Benallaoua, D., Basli, E., Batellier, L., Boutboul, S., Allouch, C., Borderie, V., Laroche, L., and Chaumeil, C.

Subjects
Endophthalmitis -- Diagnosis, Endophthalmitis -- Research, Bacterial eye infections -- Diagnosis, Bacterial eye infections -- Research, Polymerase chain reaction -- Usage, Eye -- Medical examination, Eye -- Methods, Health
Published
2009

20. Citizens AND HYdrology (CANDHY): conceptualizing a transdisciplinary framework for citizen science addressing hydrological challenges

Author

Nardi, F. Cudennec, C. Abrate, T. Allouch, C. Annis, A. Assumpção, T. Aubert, A. H. Bérod, D. Braccini, A. M. Buytaert, W. Dasgupta, A. Hannah, D. M. Mazzoleni, M. Polo, M. J. Sæbø, Ø Seibert, J. Tauro, F. Teichert, F. Teutonico, R. Uhlenbrook, S. Wahrmann Vargas, C. Grimaldi, S. and Nardi, F. Cudennec, C. Abrate, T. Allouch, C. Annis, A. Assumpção, T. Aubert, A. H. Bérod, D. Braccini, A. M. Buytaert, W. Dasgupta, A. Hannah, D. M. Mazzoleni, M. Polo, M. J. Sæbø, Ø Seibert, J. Tauro, F. Teichert, F. Teutonico, R. Uhlenbrook, S. Wahrmann Vargas, C. Grimaldi, S.

Abstract

Widely available digital technologies are empowering citizens who are increasingly well informed and involved in numerous water, climate, and environmental challenges. Citizen science can serve many different purposes, from the “pleasure of doing science” to complementing observations, increasing scientific literacy, and supporting collaborative behaviour to solve specific water management problems. Still, procedures on how to incorporate citizens’ knowledge effectively to inform policy and decision-making are lagging behind. Moreover, general conceptual frameworks are unavailable, preventing the widespread uptake of citizen science approaches for more participatory cross-sectorial water governance. In this work, we identify the shared constituents, interfaces, and interlinkages between hydrological sciences and other academic and non-academic disciplines in addressing water issues. Our goal is to conceptualize a transdisciplinary framework for valuing citizen science and advancing the hydrological sciences. Joint efforts between hydrological, computer, and social sciences are envisaged for integrating human sensing and behavioural mechanisms into the framework. Expanding opportunities of online communities complement the fundamental value of on-site surveying and indigenous knowledge. This work is promoted by the Citizens AND HYdrology (CANDHY) Working Group established by the International Association of Hydrological Sciences (IAHS).

Published
2021
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33. Richardson Extrapolation of Superconvergent Projection-Type Methods for Hammerstein Equations*.

Author

Allouch, C., Sbibih, D., and Tahrichi, M.

Subjects
*SUPERCONVERGENT methods, *HAMMERSTEIN equations, *ASYMPTOTIC expansions, *NONLINEAR equations, *KERNEL (Mathematics), *ORTHOGRAPHIC projection, *EXTRAPOLATION
Abstract

For a nonlinear Hammerstein equation with a smooth kernel, a method proposed recently, based on projection onto a space of piecewise polynomials of degree ≤ r − 1 , is shown to have convergence of order 4 r. This paper shows that this method have asymptotic series expansion and the order of convergence can be further improved to 4 r + 2 by one step of Richardson extrapolation, assuming the calculation to be repeated with each subinterval halved. Some numerical results are given to illustrate this improvement. [ABSTRACT FROM AUTHOR]

Published
2020
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34. Legendre Superconvergent Degenerate Kernel and Nystrom Methods for Fredholm Integral Equations

Author

Bouda Hamza, Allouch Chafik, and Tahrichi Mohamed

Subjects
fredholm integral equations, degenerate kernel and nystr¨om methods, legendre polynomials, interpolatory projection, superconvergence rates, Mathematics, QA1-939
Abstract

In this paper, polynomial-based superconvergent degenerate kernel and {Nyström} methods for solving {Fredholm} integral equations of the second kind with the smooth kernel are studied. By using an interpolatory projection based on Legendre polynomials of degree $\leq n,$ we analyze the convergence of these methods and we establish superconvergence results for their iterated versions. Two numerical examples are given to illustrate the theoretical estimates.

Published
2023
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