TIME TRANSFORMATIONS FOR DELAY DIFFERENTIAL EQUATIONS

被引:10
作者
Brunner, Hermann [1 ]
Maset, Stefano [2 ]
机构
[1] Mem Univ Newfoundland, Dept Math & Stat, St John, NF A1C 5S7, Canada
[2] Univ Trieste, Dipartimento Matemat & Informat, I-34100 Trieste, Italy
基金
加拿大自然科学与工程研究理事会;
关键词
Delay differential equations; variable delays; changes of variable; superconvergence; asymptotic stability; STABILITY;
D O I
10.3934/dcds.2009.25.751
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study changes of variable, called time transformations, which reduce a delay differential equation (DDE) with a variable non-vanishing delay and an unbounded lag function to another DDE with a constant delay. By using this reduction, we can easily obtain a superconvergent integration of the original equation, even in the case of a non-strictly-increasing lag function, and study the type of decay to zero of solutions of scalar linear non-autonomous equations with a strictly increasing lag function.
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页码:751 / 775
页数:25
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