Výsledky vyhledávání - "Poisson-like equation"

Tridiagonal preconditioning for Poisson-like difference equations with flat grids: Application to incompressible atmospheric flow

Autor: Orlando Astudillo, Ingeborg Bischoff-Gauss, Melitta Fiebig-Wittmaack, Wolfgang Börsch-Supan

Publikováno v: Journal of Computational and Applied Mathematics. 236(6):1435-1441

The convergence of many iterative procedures, in particular that of the conjugate gradient method, strongly depends on the condition number of the linear system to be solved. In cases with a large condition number, therefore, preconditioning is often

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cac8a64b2f2e08056e5a56ea4a14b7f

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Akademický článek

Mean first‐passage time of cell migration in confined domains.

Autor: Serrano, Hélia, Álvarez‐Estrada, Ramón F., Calvo, Gabriel F.

Publikováno v: Mathematical Methods in the Applied Sciences; Apr2023, Vol. 46 Issue 6, p7435-7453, 19p

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Akademický článek

3D VECTOR POISSON-LIKE PROBLEM WITH A TRIPLET OF INTRINSIC SCALAR BOUNDARY CONDITIONS.

Autor: Jiang Zhu¹ jiang@lncc.br, Guermond, Jean-Luc^2,3 guermond@limsi.fr, Loula, Abimael F.D.¹ aloc@lncc.br, Quartapelle, Luigi⁴

Publikováno v: Mathematical Models & Methods in Applied Sciences. Dec2003, Vol. 13 Issue 12, p1725-1743. 19p.

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Periodical

An improved pressure gradient method for viscous incompressible flows.

Autor: Li, Zhisong¹ (AUTHOR), Li, Ye^1,2,3,4,5,6 (AUTHOR) liye@sustech.edu.cn

Publikováno v: Computers & Fluids. Dec2024, Vol. 285, pN.PAG-N.PAG. 1p.

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Self-Consistent Stochastic Finite-Temperature Modelling: Ultracold Bose Gases with Local (s-wave) and Long-Range (Dipolar) Interactions

Autor: Proukakis, Nick P., Rigopoulos, Gerasimos, Soto, Alex

We formulate a generalized self-consistent quantum kinetic theory including thermal fluctuations and stochastic contributions for modelling ultracold Bose gases interacting via a generic long-range interaction. Our generalised equations take the usua

Externí odkaz: http://arxiv.org/abs/2407.20178

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Discretization form of the continuity condition at the polar axis, with application to the gyrokinetic simulation in a magnetic fusion torus

Autor: Wu, Tiannan, Wang, Zihao, Wang, Shaojie

A new computational method to solve the hyperbolic (Vlasov) equation coupled to the elliptic (Poisson-like) equation at the polar axis is proposed. It is shown that the value of a scalar function at the polar axis can be predicted by its neighbouring

Externí odkaz: http://arxiv.org/abs/2402.03657

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Convergence Analysis of a Preconditioned Steepest Descent Solver for the Cahn-Hilliard Equation with Logarithmic Potential

Autor: Diegel, Amanda E., Wang, Cheng, Wise, Steven M.

In this paper, we provide a theoretical analysis for a preconditioned steepest descent (PSD) iterative solver that improves the computational time of a finite difference numerical scheme for the Cahn-Hilliard equation with Flory-Huggins energy potent

Externí odkaz: http://arxiv.org/abs/2401.16316

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Akademický článek

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Akademický článek

On global solutions to some non-Markovian quantum kinetic models of Fokker–Planck type.

Autor: Alejo, Miguel A., López, José Luis

Publikováno v: Zeitschrift für Angewandte Mathematik und Physik (ZAMP); Apr2020, Vol. 71 Issue 2, p1-33, 33p

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