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Almost Hypoelliptic Differential Operators

✍ Scribed by Elliott, R. J.


Book ID
120102344
Publisher
Oxford University Press
Year
1969
Tongue
English
Weight
301 KB
Volume
s3-19
Category
Article
ISSN
0024-6115

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## Abstract 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. (Β© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)