
doi: 10.1007/bf01056863
Es sei \(\Omega\) ein Gebiet aus \(R^ n\), das mit einer geschlossenen Fläche S der Klasse \(C^{\infty}\) begrenzt ist. Es seien D(\({\bar \Omega}\)) und D(S) die Räume der unendlich oft differenzierbaren Funktionen auf \({\bar \Omega}=\Omega \cup S\) und S. Man betrachtet das elliptische System von Differentialgleichungen (1) \[ L(x,D)u\equiv (L_{ij}(x,D))_{i,j=1...p}u=F, \] \[ L_{ij}(x,D)=\sum_{| \mu | \leq t_ j}a_{\mu}^{ij}(x)D^{\mu},\quad a_{\mu}^{ij}(x)\in D({\bar \Omega}), \] \[ \mu =(\mu_ 1,...,\mu_ n),\quad D^{\mu}=D_ 1^{\mu_ 1}...D_ n^{\mu_ n},\quad D_ k^{\mu_ k}=(-i(\partial /\partial x_ k))^{\mu_ k} \] mit m Randbedingungen der Form \[ (2)\quad B(x,D)u\equiv (B_{hj}(x,D)_{h=1...m,j=1...p}u=G, \] wobei die Koeffizienten aus (2) zu D(S) gehören. Die Randwertaufgabe (1)-(2) wird gelöst und die Eindeutigkeit der Lösung bewiesen.
existence, General existence and uniqueness theorems (PDE), uniqueness, Systems of elliptic equations, boundary value problems, smoothness
existence, General existence and uniqueness theorems (PDE), uniqueness, Systems of elliptic equations, boundary value problems, smoothness
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