Essential spectrum of elliptic systems of pseudo-differential operators on $L^2(\mathbb{R}^N)\oplus L^2(\mathbb{R}^N)$

DOI10.1007/S11868-017-0198-8arXiv1703.06344MaRDI QIDQ6284490

Orif O. Ibrogimov, Christiane Tretter

Publication date: 18 March 2017

Mathematics Subject Classification ID

Pseudodifferential operators as generalizations of partial differential operators (35S05) Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) Pseudodifferential operators (47G30)

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