Proceedings of the National Academy of Sciences India Section A - Physical Sciences, cilt.94, sa.1, ss.83-98, 2024 (SCI-Expanded)
A collocation method with an approximate function consisting of a combination of cubic B-spline functions was established to solve the regularized long wave (RLW) equation. To increase accuracy of the method, multi-step predictor–corrector time integrator is introduced to discretize the RLW equation. The space decomposition of the dependent variable and its derivatives of the RLW equation was accomplished via the B-spline collocation method. Open form of Adams-Bashforth-Moulton method is used as a predictor, then closed Adams-Bashforth-Moulton method is implemented as a corrector. Collocation predictor–corrector method provides an increase in accuracy. Comparison is made with results of some former studies. When high accuracy time discretization is used in getting the solution of the RLW equation, it is observed that the errors are more accurate than the results of the Crank-Nicolson finite element methods listed in the article.