A problem of nirenberg on pseudo-differential operators
โ Scribed by Hitoshi Kumano-Go
- Publisher
- John Wiley and Sons
- Year
- 1970
- Tongue
- English
- Weight
- 214 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0010-3640
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract We describe the essential spectrum of a hypoelliptic pseudoโdifferential operator which is the sum of a constantcoefficients operator and an operator with coefficients vanishing at infinity. (ยฉ 2007 WILEYโVCH Verlag GmbH & Co. KGaA, Weinheim)
## Abstract We construct the minimal and maximal extensions in __L__ ^__p__^ (โ^__n__^ ), 1 < __p__ < โ, for __M__ โelliptic pseudoโdifferential operators initiated by Garello and Morando. We prove that they are equal and determine the domains of the minimal, and hence maximal, extensions of __M__