scientific article

zbMath0666.34012MaRDI QIDQ3818592

Bernard Helffer, Johannes Sjöstrand

Publication date: 1988

Full work available at URL: http://www.numdam.org/item?id=SEDP_1987-1988____A12_0

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

perturbationsdescription of the spectruminfinite fractional series

Mathematics Subject Classification ID

Ordinary differential equations of infinite order (34A35) Special ordinary differential equations (Mathieu, Hill, Bessel, etc.) (34B30) Pseudodifferential operators and other generalizations of partial differential operators (35S99)

Related Items (1)

Semi-classical analysis for Harper's equation. III : Cantor structure of the spectrum

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