Numerical solution of different kinds of fractional-order optimal control problems using generalized Lucas wavelets and the least squares method

چکیده مقاله

Generalized Lucas wavelets (GLWs) have two more parameters ((Formula presented.) and (Formula presented.)), comparing with some existing classical wavelet functions. In this manner, we have different types of wavelet functions (orthogonal and non-orthogonal) by choosing various values of parameters (Formula presented.) and (Formula presented.). Due to the impressive feature of the GLWs, we design a new computational method for the solution of fractional optimal control problems and fractional pantograph optimal control problems. This technique uses the GLWs and least squares method. The scheme includes expanding the required functions using GLW elements. We present new Riemann–Liouville and pantograph operational matrices for GLWs. Applying the operational matrices and least squares method, the considered problems lead to systems of algebraic equations, which can be solved numerically. A brief discussion of the error of the estimate used is investigated. Finally, some numerical experiments are exhibited to demonstrate the validity and applicability of the suggested scheme. The proposed algorithm is easy to implement and presents very accurate results. © 2024 John Wiley & Sons Ltd.