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Stability analysis of two-step Runge-Kutta methods for delay differential equations

✍ Scribed by Z. Bartoszewski; Z. Jackiewicz


Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
540 KB
Volume
44
Category
Article
ISSN
0898-1221

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✦ Synopsis


We investigate stability properties of two-step Runge-Kutta methods with respect to the linear test equation y'(t) = ay(t) + by(t -T), t > O,

where a and b are complex parameters. It is known that the solution y(t) to this equation tends to zero as t --~ oc if Ibl < -Re(a). We will show that under some conditions this property is inherited by any A-stable two-step Runge-Kutta method applied on a constrained mesh to delay differential equations, i.e., that the corresponding method is P-stable.


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