The Operator (sgn x) d 2 dx 2 is Similar to a Selfadjoint Operator in L 2 ( R )
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Publication:4844424
DOI10.2307/2160709zbMath0835.47021OpenAlexW2049432624MaRDI QIDQ4844424
Publication date: 21 August 1995
Published in: Proceedings of the American Mathematical Society (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.2307/2160709
General spectral theory of ordinary differential operators (34L05) Linear symmetric and selfadjoint operators (unbounded) (47B25) General theory of ordinary differential operators (47E05) Structure theory of linear operators (47A65) Linear operators on spaces with an indefinite metric (47B50)
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