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Hamid Esmaili

Academic rank: Professor
ORCID:
Education: PhD.
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Faculty: Faculty of Science
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Research

Title
OnComputationalEfficiencyandDynamicalAnalysisfora ClassofNovelMulti-stepIterativeSchemes
Type
JournalPaper
Keywords
Iterative schemes·Multi-step scheme·Computational efficiency·Systems of nonlinear equations·Fractional calculus
Year
2020
Journal International Journal of Applied and Computational Mathematics
DOI
Researchers khosro sayevand ، ، Hamid Esmaili

Abstract

This paper presents a novel multi-step iterative scheme to solve system of nonlinear equations. Because the cost of calculating the Fréchet derivative evaluation and its inversion is significant, in order to achieve its high computational efficiency, we have tried to calculate Fréchet derivative and its inverse less per cycle by using the proposed multi-step iterative schemes. The basic iterative scheme has a convergence order of four; therefore, repetition of the second step can achieve higher convergence order. In fact, adding a new step to the baseiterativeschemeeachtimeincreasestheconvergenceorderbytwounits.Themulti-step iterative schemes have convergence-order 2m, wherem is the number of steps of the multistepiterativeschemes.Also,thecomputationalefficiencyoftheiterativeschemeiscompared withotheravailablemethods.Thenumericalresultspresentedconfirmthetheoreticalresults. A number of nonlinear system of equations associated with the numerical approximation of ordinary, partial, and fractional differential equations are made up and solved.