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Sur certains problèmes concernant des systèmes d'équations du type elliptique. - MaRDI portal

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Sur certains problèmes concernant des systèmes d'équations du type elliptique. (Q573390)

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scientific article; zbMATH DE number 2556981
Language Label Description Also known as
English
Sur certains problèmes concernant des systèmes d'équations du type elliptique.
scientific article; zbMATH DE number 2556981

    Statements

    Sur certains problèmes concernant des systèmes d'équations du type elliptique. (English)
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    1931
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    Verf. verallgemeinert in passender Weise die bekannten Begriffe und Sätze aus der Theorie des Potentials und der linearen partiellen Differentialgleichungen zweiter Ordnung vom elliptischen Typus (Randwertaufgaben, adjungiertes System, \textit{Green}sche Formel, Grandlösung, Lösung mit Hilfe von Integralgleichungen) auf Systeme von \(n\) solchen linearen Differentialgleichungen von der Gestalt \[ \sum_{\alpha,\beta=1}^m a_{\alpha\beta}\frac{\partial^2 u_\lambda} {\partial x_\alpha\partial x_\beta}+ \sum_{\mu=1}^{m'}\sum_{\alpha=1}^m b_{\lambda\mu\alpha} \frac{\partial u_\mu}{\partial x_\alpha}+ \sum_{\mu=1}^{m'}c_{\lambda\mu}u_\mu=f_\lambda \quad(\lambda=1,2,\ldots,m'), \] wobei die \(a_{\alpha\beta}\), \(b_{\lambda\mu\alpha}\), \(c_{\lambda\mu}\), \(f_\lambda\) Funktionen von \(x_1, x_2,\ldots, x_m\) sind.
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