TY - CHAP
T1 - Schrödinger Flow’s Dispersive Estimates in a regime of Re-scaled Potentials
AU - Georgiev, Vladimir
AU - Michelangeli, Alessandro
AU - Scandone, Raffaele
N1 - Funding Information:
Acknowledgments This work is partially supported by the Italian National Institute for Higher Mathematics—INdAM (V.G., A.M., R.S.), the project ‘Problemi stazionari e di evoluzione nelle equazioni di campo non-lineari dispersive’ of GNAMPA—Gruppo Nazionale per l’Analisi Matem-atica (V.G.), the PRIN project no. 2020XB3EFL of the MIUR—Italian Ministry of University and Research (V.G.), the Institute of Mathematics and Informatics at the Bulgarian Academy of Sciences (V.G.), the Top Global University Project at Waseda University (V.G.), and the Alexander von Humboldt Foundation, Bonn (A.M.).
Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - The problem of monitoring the (constants in the estimates that quantify the) dispersive behaviour of the flow generated by a Schrödinger operator is posed in terms of the scaling parameter that expresses the small size of the support of the potential, along the scaling limit towards a Hamiltonian of point interaction. At positive size, dispersive estimates are completely classical, but their dependence on the short range of the potential is not explicit, and the understanding of such a dependence would be crucial in connecting the dispersive behaviour of the short-range Schrödinger operator with the zero-range Hamiltonian. The general set-up of the problem is discussed, together with preliminary answers, open questions, and plausible conjectures, in a ‘propaganda’ spirit for this subject.
AB - The problem of monitoring the (constants in the estimates that quantify the) dispersive behaviour of the flow generated by a Schrödinger operator is posed in terms of the scaling parameter that expresses the small size of the support of the potential, along the scaling limit towards a Hamiltonian of point interaction. At positive size, dispersive estimates are completely classical, but their dependence on the short range of the potential is not explicit, and the understanding of such a dependence would be crucial in connecting the dispersive behaviour of the short-range Schrödinger operator with the zero-range Hamiltonian. The general set-up of the problem is discussed, together with preliminary answers, open questions, and plausible conjectures, in a ‘propaganda’ spirit for this subject.
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U2 - 10.1007/978-981-19-6434-3_5
DO - 10.1007/978-981-19-6434-3_5
M3 - Chapter
AN - SCOPUS:85143848129
T3 - Springer INdAM Series
SP - 111
EP - 125
BT - Springer INdAM Series
PB - Springer-Verlag Italia s.r.l.
ER -