Can anyone give me a well-motivated example of a symmetric fourth order (or at least higher than three) differential operator on $L^2(\mathbb{R})$, initially defined on Schwartz class that is essentially self-adjoint?
2026-03-30 01:11:22.1774833082
Fourth order essentially self adjoint differential operator?
367 Views Asked by Bumbble Comm https://math.techqa.club/user/bumbble-comm/detail AtRelated Questions in OPERATOR-THEORY
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