Open AccessA computational method for solving differential equations with quadratic nonlinearity by using Bernoulli polynomials
Author(s) -
Kübra Erdem Biçer,
Mehmet Sezer
Publication year - 2019
Publication title -
thermal science/thermal science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.339
H-Index - 43
eISSN - 2334-7163
pISSN - 0354-9836
DOI - 10.2298/tsci181128041b
Subject(s) - bernoulli polynomials , bernoulli's principle , mathematics , nonlinear system , matrix (chemical analysis) , residual , quadratic equation , differential equation , method of mean weighted residuals , mathematical analysis , algorithm , orthogonal polynomials , classical orthogonal polynomials , galerkin method , physics , materials science , geometry , quantum mechanics , engineering , composite material , aerospace engineering
In this paper, a matrix method is developed to solve quadratic non-linear differential equations. It is assumed that the approximate solutions of main problem which we handle primarily, is in terms of Bernoulli polynomials. Both the approximate solution and the main problem are written in matrix form to obtain the solution. The absolute errors are applied to numeric examples to demonstrate efficiency and accuracy of this technique. The obtained tables and figures in the numeric examples show that this method is very sufficient and reliable for solution of non-linear equations. Also, a formula is utilized based on residual functions and mean value theorem to seek error bounds.