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Article . 2025 . Peer-reviewed
License: CC BY
Data sources: Crossref
DBLP
Article . 2025
Data sources: DBLP
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The Numerical Solution of Volterra Integral Equations

Authors: Peter Junghanns;

The Numerical Solution of Volterra Integral Equations

Abstract

Recently we studied a collocation–quadrature method in weighted L2 spaces as well as in the space of continuous functions for a Volterra-like integral equation of the form u(x)−∫αx1h(x−αy)u(y)dy=f(x),0<x<1, where h(x) (with a possible singularity at x=0) and f(x) are given (in general complex-valued) functions, and α∈(0,1) is a fixed parameter. Here, we want to investigate the same method for the case when α=1. More precisely, we consider (in general weakly singular) Volterra integral equations of the form u(x)−∫0xh(x,y)(x−y)κu(y)dy=f(x),0<x<1, where κ>−1, and h:D⟶C is a continuous function, D=(x,y)∈R2:0<y<x<1. The passage from 0<α<1 to α=1 and the consideration of more general kernel functions h(x,y) make the studies more involved. Moreover, we enhance the family of interpolation operators defining the approximating operators, and, finally, we ask if, in comparison to collocation–quadrature methods, the application of the Nyström method together with the theory of collectively compact operator sequences is possible.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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