On the essential self-adjointness of powers of Schrödinger-type operators
- 1 January 1977
- journal article
- research article
- Published by Cambridge University Press (CUP) in Proceedings of the Royal Society of Edinburgh: Section A Mathematics
- Vol. 79 (1-2) , 61-77
- https://doi.org/10.1017/s0308210500016826
Abstract
Let T be the formally self-adjoint second-order elliptic differential expressionin ℝn, where the coefficients bj, ajk, q are real-valued and ajk ≈ akj. In this paper sufficient conditions for all positive integer powers Tm of T to be essentially self-adjoint on are obtained.Keywords
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