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Pouria Assari

Pouria Assari

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 35253362500
HIndex:
Faculty: Faculty of Science
Address:
Phone: 08138213642

Research

Title
The approximate solution of charged particle motion equations in oscillating magnetic fields using the local multiquadrics collocation method
Type
JournalPaper
Keywords
Charged particle motion equation · Oscillating magnetic field · Integro-differential equation · Fractional order · Discrete collocation method · Local multiquadrics
Year
2021
Journal ENGINEERING WITH COMPUTERS
DOI
Researchers Pouria Assari ، Fatemeh Asadi-Mehregan

Abstract

The charged particle motion for certain configurations of oscillating magnetic fields can be simulated by a Volterra integrodifferential equation of the second order with time-periodic coefficients. This paper investigates a simple and accurate scheme for computationally solving these types of integro-differential equations. To start the method, we first reduce the integro-differential equations to equivalent Volterra integral equations of the second kind. Subsequently, the solution of the mentioned Volterra integral equations is estimated by the collocation method based on the local multiquadrics formulated on scattered points. We also expand the proposed method to solve fractional integro-differential equations including noninteger order derivatives. Since the offered method does not need any mesh generations on the solution domain, it can be recognized as a meshless method. To demonstrate the reliability and efficiency of the new technique, several illustrative examples are given. Moreover, the numerical results confirm that the method developed in the current paper in comparison with the method based on the globally supported multiquadrics has much lesser volume computing.