Abstract
We propose two numerical techniques for solving Bratu-like equations arising in the electrospinning and vibration-electrospinning process. Due to the presence of parameter \(\delta \) as well as strong nonlinearity, these problems pose difficulties in obtaining their solutions. The first numerical method is based on the Bernstein polynomials, and the second method is based on the Gegenbauer-wavelets method. To establish numerical algorithms, we consider the equivalent integral form of the Bratu-like equation with suitable boundary conditions. Using the approximation theory based on the Bernstein polynomials and the Gegenbauer wavelets combined with the collocation technique, we convert the integral equation into a nonlinear system of equations. The Newton–Raphson method is implemented to analyze the resulting nonlinear system of equations. Three examples of Bratu-like equations are provided to demonstrate the accuracy, applicability, and efficiency of the respective techniques. The obtained results of numerical solutions and residual errors are compared. We observe that the collocation technique based on the Bernstein polynomial provides a better result than the Gegenbauer wavelets and other known methods.
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Shahni, J., Singh, R. Bernstein and Gegenbauer-wavelet collocation methods for Bratu-like equations arising in electrospinning process. J Math Chem 59, 2327–2343 (2021). https://doi.org/10.1007/s10910-021-01290-y
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DOI: https://doi.org/10.1007/s10910-021-01290-y