van Kampen, N. G. Spectral decomposition of the operator \(p^2-q^2\). (English) Zbl 0090.06001 Physica 24, 545-556 (1958). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 3 Documents Keywords:ordinary differential equations PDF BibTeX XML Cite \textit{N. G. van Kampen}, Physica 24, 545--556 (1958; Zbl 0090.06001) Full Text: DOI