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zbMATH Open
Article . 1993
Data sources: zbMATH Open
Mathematics of Computation
Article . 1993 . Peer-reviewed
Data sources: Crossref
Mathematics of Computation
Article . 1993 . Peer-reviewed
Data sources: Crossref
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Stability of the Discretized Pantograph Differential Equation

Stability of the discretized pantograph differential equation
Authors: Buhmann, Martin; Iserles, Arieh;

Stability of the Discretized Pantograph Differential Equation

Abstract

In this paper we study discretizations of the general pantograph equation \[ y ′ ( t ) = a y ( t ) + b y ( θ ( t ) ) + c y ′ ( ϕ ( t ) ) , t ≥ 0 , y ( 0 ) = y 0 , y’(t) = ay(t) + by(\theta (t)) + cy’(\phi (t)),\quad t \geq 0,\quad y(0) = {y_0}, \] , where a, b, c, and y 0 {y_0} are complex numbers and where θ \theta and ϕ \phi are strictly increasing functions on the nonnegative reals with θ ( 0 ) = ϕ ( 0 ) = 0 \theta (0) = \phi (0) = 0 and θ ( t ) > t , ϕ ( t ) > t \theta (t) > t, \phi (t) > t for positive t. Our purpose is an analysis of the stability of the numerical solution with trapezoidal rule discretizations, and we will identify conditions on a, b, c and the stepsize which imply that the solution sequence { y n } n = 0 ∞ \{ {y_n}\} _{n=0}^\infty is bounded or that it tends to zero algebraically, as a negative power of n.

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Keywords

numerical solution, trapezoidal rule, Stability of difference equations, Stability theory of functional-differential equations, Numerical analysis in abstract spaces, difference equation, stability, generalized pantograph equation, Neutral functional-differential equations, Numerical methods for functional equations, Stability and convergence of numerical methods for ordinary differential equations

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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!
86
Top 10%
Top 1%
Top 10%
bronze
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