数学物理学报(英文版) ›› 2023, Vol. 43 ›› Issue (5): 2309-2319.doi: 10.1007/s10473-023-0522-8

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SOME CONVERGENCE PROBLEMS REGARDING THE FRACTIONAL SCHRÖDINGER PROPAGATOR ON NONCOMPACT MANIFOLDS*

Yali PAN   

  1. School of Mathematics and Big Data, Chaohu University, Hefei 238024, China
  • 收稿日期:2021-09-28 修回日期:2023-04-21 发布日期:2023-10-25

SOME CONVERGENCE PROBLEMS REGARDING THE FRACTIONAL SCHRÖDINGER PROPAGATOR ON NONCOMPACT MANIFOLDS*

Yali PAN   

  1. School of Mathematics and Big Data, Chaohu University, Hefei 238024, China
  • Received:2021-09-28 Revised:2023-04-21 Published:2023-10-25
  • About author:Yali PAN, E-mail: yalipan@zjnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (12071437), the Natural Science Foundation from the Education Department of Anhui Province (KJ2020A0044), the Research Fund Project of Chaohu University (KYQD-2023016), the High Level Scientific Research Achievement Award Cultivation Project of Chaohu University (kj20zkjp04) and the Key Construction Discipline of Chaohu University (kj22zdjsxk01).

摘要: Let L be the Laplace-Beltrami operator. On an n-dimensional (n2), complete, noncompact Riemannian manifold M, we prove that if 0<α<1,s>α/2 and fHs(M), then the fractional Schrödinger propagator eit|L|α/2(f)(x)f(x) a.e. as t0. In addition, for when M is a Lie group, the rate of the convergence is also studied. These results are a non-trivial extension of results on Euclidean spaces and compact manifolds.

关键词: Schrödinger propagator, noncompact manifolds, spectra

Abstract: Let L be the Laplace-Beltrami operator. On an n-dimensional (n2), complete, noncompact Riemannian manifold M, we prove that if 0<α<1,s>α/2 and fHs(M), then the fractional Schrödinger propagator eit|L|α/2(f)(x)f(x) a.e. as t0. In addition, for when M is a Lie group, the rate of the convergence is also studied. These results are a non-trivial extension of results on Euclidean spaces and compact manifolds.

Key words: Schrödinger propagator, noncompact manifolds, spectra

中图分类号: 

  • 58J05