Abstract
Positive elliptic operators from the Helffer-Robert classes of pseudodifferential operators on the line can be approximately factored as products of creation and annihilation operators. Operators of anharmonic oscillators belong to these classes.
Original language | English (US) |
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Pages (from-to) | 425-433 |
Number of pages | 9 |
Journal | Proceedings of the American Mathematical Society |
Volume | 113 |
Issue number | 2 |
DOIs | |
State | Published - Oct 1991 |
Externally published | Yes |
ASJC Scopus subject areas
- General Mathematics
- Applied Mathematics