Guarneri, Italo; Schulz-Baldes, Hermann Intermittent lower bound on quantum diffusion. (English) Zbl 1001.81019 Lett. Math. Phys. 49, No. 4, 317-324 (1999). Reviewer: Messoud Efendiev (Berlin) MSC: 81Q10 37N20 28A80 PDF BibTeX XML Cite \textit{I. Guarneri} and \textit{H. Schulz-Baldes}, Lett. Math. Phys. 49, No. 4, 317--324 (1999; Zbl 1001.81019) Full Text: DOI
Nishiwada, Kimimasa On weak evolution operators with constant coefficients and spreading of wave packets. (English) Zbl 0415.35041 Proc. Japan Acad., Ser. A 55, 41-44 (1979). MSC: 35G10 35K25 35R20 PDF BibTeX XML Cite \textit{K. Nishiwada}, Proc. Japan Acad., Ser. A 55, 41--44 (1979; Zbl 0415.35041) Full Text: DOI