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On the essential spectrum of hypoelliptic pseudo‐differential operators
Author(s) -
Buzano Ernesto,
Ziggioto Andrea
Publication year - 2008
Publication title -
mathematische nachrichten
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 50
eISSN - 1522-2616
pISSN - 0025-584X
DOI - 10.1002/mana.200510584
Subject(s) - hypoelliptic operator , mathematics , differential operator , spectrum (functional analysis) , operator (biology) , infinity , differential (mechanical device) , mathematical analysis , essential spectrum , semi elliptic operator , pure mathematics , chemistry , physics , quantum mechanics , biochemistry , repressor , transcription factor , gene , thermodynamics
We describe the essential spectrum of a hypoelliptic pseudo‐differential operator which is the sum of a constantcoefficients operator and an operator with coefficients vanishing at infinity. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)