主题:
Schrödinger operators on periodic discrete and metric graphs
周期离散图与度量图上的薛定谔算子
报告人:
Evgeny Korotyaev
Saint-Petersburg State University, Russia
俄罗斯圣彼得堡国立大学
讲座摘要:
Firstly we discuss Schrödinger operators on the periodic discrete graph with decaying potentials. We describe its different spectral properties (scattering, estimates of eigenvalues,..). In particular, for the case of the cubic lattice we solve the inverse problem.
Secondly, we consider scattering for time periodic Schrödinger operators on the periodic discrete graph.
Finally, we discuss Schrödinger operators on the periodic metric graph with decaying potential V. We describe different spectral properties of H. These results are obtained jointly with Isozaki, Moller, Rasmussen, Slouschs.
首先,我们讨论带有衰减势的周期离散图上的薛定谔算子。我们刻画了其多种谱性质,包括散射理论、特征值估计等。特别地,对于cubic lattice的情形,我们讨论反问题的解。
其次,我们研究周期离散图上时间周期薛定谔算子的散射问题。
最后,我们讨论带有衰减势 V 的周期度量图上的薛定谔算子,并刻画算子 H 的多种谱性质。以上结果与 Isozaki、Moller、Rasmussen、Sloushch 合作完成。
时间:10月9日下午2:00-3:00
地点:立德楼603