On elliptic systems in \(R^ n\). (English) Zbl 0517.35031


35J45 Systems of elliptic equations, general (MSC2000)
35B40 Asymptotic behavior of solutions to PDEs
35E20 General theory of PDEs and systems of PDEs with constant coefficients
46E35 Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems
47A53 (Semi-) Fredholm operators; index theories
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