A multi-interval continuous collocation method for Volterra integral equations of the third kind

Document Type : Research Paper

Author

Department of Mathematics, Khansar Campus, University of Isfahan, Iran.

Abstract

This paper considers Volterra integral equations (VIEs) of the third kind. We present a novel
multi-interval collocation-based approach for the numerical solution of this type of equations. The proposed method is particularly effective for VIEs when implemented in continuous piecewise polynomial spaces, leveraging its ability to perform localized approximations on subintervals. We also analyze the solvability of the proposed continuous collocation schemes and establish its convergence properties. Numerical experiments are included to demonstrate the spectral accuracy of the method and validate the theoretical findings.

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Articles in Press, Accepted Manuscript
Available Online from 19 December 2025
  • Receive Date: 24 June 2025
  • Revise Date: 28 October 2025
  • Accept Date: 15 December 2025