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- W4207035068 abstract "Purpose This study aims to propose a new numerical method for solving non-linear partial differential equations on irregular domains. Design/methodology/approach The main aim of the current paper is to propose a local meshless collocation method to solve the two-dimensional Klein-Kramers equation with a fractional derivative in the Riemann-Liouville sense, in the time term. This equation describes the sub-diffusion in the presence of an external force field in phase space. Findings First, the authors use two finite difference schemes to discrete temporal variables and then the radial basis function-differential quadrature method has been used to estimate the spatial direction. To discrete the time-variable, the authors use two different strategies with convergence orders <m:math xmlns:m=http://www.w3.org/1998/Math/MathML display=inline><m:mrow><m:mi mathvariant=script>O</m:mi><m:mo stretchy=true>(</m:mo><m:msup><m:mi>τ</m:mi><m:mrow><m:mn>1</m:mn><m:mo>+</m:mo><m:mi>γ</m:mi></m:mrow></m:msup><m:mo stretchy=true>)</m:mo></m:mrow></m:math> and <m:math xmlns:m=http://www.w3.org/1998/Math/MathML display=inline><m:mrow><m:mi mathvariant=script>O</m:mi><m:mo stretchy=true>(</m:mo><m:msup><m:mi>τ</m:mi><m:mrow><m:mn>2</m:mn><m:mo>−</m:mo><m:mi>γ</m:mi></m:mrow></m:msup><m:mo stretchy=true>)</m:mo></m:mrow></m:math> for 0 < γ < 1. Finally, some numerical examples have been presented to show the high accuracy and acceptable results of the proposed technique. Originality/value The proposed numerical technique is flexible for different computational domains." @default.
- W4207035068 created "2022-01-26" @default.
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- W4207035068 date "2021-08-16" @default.
- W4207035068 modified "2023-09-27" @default.
- W4207035068 title "The local meshless collocation method for solving 2D fractional Klein-Kramers dynamics equation on irregular domains" @default.
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- W4207035068 doi "https://doi.org/10.1108/hff-12-2020-0781" @default.
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