On positivity of pseudo-differential operators
- 1 October 1978
- journal article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 75 (10) , 4673-4674
- https://doi.org/10.1073/pnas.75.10.4673
Abstract
In this paper we obtain new lower bounds for pseudo-differential operators with non-negative symbols, thus providing a sharper form of Gårding's inequality.Keywords
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