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Explicit Form of Solutions of Second-Order Delayed Difference Equations: Application to Iterative Learning Control

Author

Listed:
  • Nazim I. Mahmudov

    (Department of Mathematics, Eastern Mediterranean University, T.R. North Cyprus Mersin 10, Famagusta 99628, Turkey
    Research Center of Econophysics, Azerbaijan State University of Economics (UNEC), Istiqlaliyyat Str. 6, Baku 1001, Azerbaijan)

  • Muath Awadalla

    (Department of Mathematics and Statistics, College of Science, King Faisal University, Hofuf 31982, Al Ahsa, Saudi Arabia)

  • Meraa Arab

    (Department of Mathematics and Statistics, College of Science, King Faisal University, Hofuf 31982, Al Ahsa, Saudi Arabia)

Abstract

A system of inhomogeneous second-order difference equations with linear parts given by noncommutative matrix coefficients are considered. The closed form of its solution is derived by means of a newly defined delayed matrix sine/cosine using the Z transform and determining function. This representation helps with analyzing iterative learning control by applying appropriate updating laws and ensuring sufficient conditions for achieving asymptotic convergence in tracking.

Suggested Citation

  • Nazim I. Mahmudov & Muath Awadalla & Meraa Arab, 2025. "Explicit Form of Solutions of Second-Order Delayed Difference Equations: Application to Iterative Learning Control," Mathematics, MDPI, vol. 13(6), pages 1-24, March.
  • Handle: RePEc:gam:jmathe:v:13:y:2025:i:6:p:916-:d:1609175
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