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Zur Numerischen Behandlung Freier Randwertprobleme Parabolischer Differentialgleichungen

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Numerische Methoden der Approximationstheorie

Zusammenfassung

Diskretisiert man bei gewissen freien Randwertproblemen linearer parabolischer Differentialgleichungen lediglich die Zeitvariable (Linienmethode), so erhält man eine Folge von freien Randwertproblemen gewöhnlicher Differentialgleichungen der Form (vgl. z.B. [3])

$$\begin{array}{l} L:{C^2}[0,X] \to C[0,X] \\ Lu(x): = {u^n}(x) + A(x)u'(x) = \frac{{B(x)}}{{\Delta t}}u(x) + \frac{{C(x)}}{{\Delta t}} = 0,x \in ]0,X[ \\ \end{array}$$
((1))

unter den Anfangsbedingungen

$$u(0) = \delta u'(0) + \alpha$$
((2))

und den Bedingungen für den freien Rand

$$u(s) = 0$$
((3.1))
$$s - \sigma + \Delta t\gamma (s)u'(s) = \Delta t\mu (s) $$
((3.2))

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Literatur

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© 1975 Springer Basel AG

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Sachs, A. (1975). Zur Numerischen Behandlung Freier Randwertprobleme Parabolischer Differentialgleichungen. In: Collatz, L., Meinardu, G. (eds) Numerische Methoden der Approximationstheorie. International Series of Numerical Mathematics / Internationale Schriftenreihe zur Numerischen Mathematik / Série Internationale D’analyse Numérique, vol 26. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-5961-5_13

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  • DOI: https://doi.org/10.1007/978-3-0348-5961-5_13

  • Publisher Name: Birkhäuser, Basel

  • Print ISBN: 978-3-0348-5962-2

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