On the solution of Schrödinger-like wave equations
Rendiconti del Seminario Matematico della Università di Padova, Volume 42  (1969), p. 329-340
@article{RSMUP_1969__42__329_0,
     author = {de Graaf, J. and Peletier, L. A.},
     title = {On the solution of Schr\"odinger-like wave equations},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {42},
     year = {1969},
     pages = {329-340},
     zbl = {0234.35022},
     mrnumber = {252864},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1969__42__329_0}
}
de Graaf, J.; Peletier, L. A. On the solution of Schrödinger-like wave equations. Rendiconti del Seminario Matematico della Università di Padova, Volume 42 (1969) , pp. 329-340. http://www.numdam.org/item/RSMUP_1969__42__329_0/

[1] Lady O.A.: O rešenii nestacionarnyh operatornyh uravnenij različnyh tipov. (On the solution of various kinds of non-stationary operator equations). Dokl. Ak. Nauk S.S.S.R. 102 (1955), n. 2, p. 207-210.

[2] Lax P.D. and Phillips R.S.: The acoustic equation with an indefinite energy norm and the Schrödinger equations, Journal of Functional Analysis 1, 37-83 (1967). | MR 217441 | Zbl 0186.16401

[3] Yosida K.: Functional Analysis, 2nd printing, Springer Verlag, Berlin 1966.

[4] Broer L.J.F. and Peletier L.A.: Some comments on linear wave equations, Appendix A, Appl. Sci. Res. 17 (1967), p. 65. | Zbl 0145.13804

[5] Titchmarsh E.C.: Introduction to the theory of Fourier integrals, Clarendon Press, Oxford 1948. | JFM 63.0367.05

[6] Hartman Ph.: Ordinary differential equations, J. Wiley, New York, p. 24 (1964). | MR 171038 | Zbl 0125.32102