摘要
Block boundary value methods(BBVMs)are extended in this paper to obtain the numerical solutions of nonlinear delay-differential-algebraic equations with singular perturbation(DDAESP).It is proved that the extended BBVMs in some suitable conditions are globally stable and can obtain a unique exact solution of the DDAESP.Besides,whenever the classic Lipschitz conditions are satisfied,the extended BBVMs are preconsistent and pth order consistent.Moreover,through some numerical examples,the correctness of the theoretical results and computational validity of the extended BBVMs is further confirmed.
基金
supported by the National Key R&D Program of China(2020YFA0709800)
the National Natural Science Foundation of China(Nos.11901577,11971481,12071481,12001539)
the Natural Science Foundation of Hunan(No.S2017JJQNJJ-0764)
the fund from Hunan Provincial Key Laboratory of Mathematical Modeling and Analysis in Engineering(No.2018MMAEZD004)
the Basic Research Foundation of National Numerical Wind Tunnel Project(No.NNW2018-ZT4A08)
the Research Fund of National University of Defense Technology(No.ZK19-37)
The science and technology innovation Program of Hunan Province(No.2020RC2039).
