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2005-11-16Buch DOI: 10.18452/2705
On asymptotics in case of linear index-2 differential-algebraic equations
Hanke, Michael
Macana, Ebroul Izquierdo
März, Roswitha
Asymptotic properties of solutions of general linear differential-algebraic equations (DAE's) and those of their numerical counterparts are discussed. New results on the asymptotic stability in the sense of Lyapunov as well as on contractive index-2 DAE's are given. The behaviour of BDF, IRK, and PIRK applied to such systems is investigated. In particular, we clarify the significance of certain subspaces closely related to the geometry of the DAE. Asymptotic properties like A-stability and L-stability are shown to be preserved if these subspaces are constant. Moreover, algebraically stable IRK(DAE) are B-stable under this condition. The general results are specialized to the case of index-2 Hessenberg systems.
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DOI
10.18452/2705
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https://doi.org/10.18452/2705
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