نتایج جستجو برای: localization operator

تعداد نتایج: 231995  

2017
Hatem Mejjaoli Ahmedou Ould Ahmed Salem

We consider the continuous wavelet transform [Formula: see text] associated with the Weinstein operator. We introduce the notion of localization operators for [Formula: see text]. In particular, we prove the boundedness and compactness of localization operators associated with the continuous wavelet transform. Next, we analyze the concentration of [Formula: see text] on sets of finite measure. ...

Journal: :bulletin of the iranian mathematical society 0
m. s. moslehian ferdowsi university of mashhad j. e. pecaric university of zagreb i. peric university of zagreb

0

1999
Stephan De Bièvre

We study the one-dimensional random dimer model, with Hamiltonian Hω = ∆ + Vω, where for all x ∈ Z, Vω(2x) = Vω(2x + 1) and where the Vω(2x) are i.i.d. Bernoulli random variables taking the values ±V, V > 0. We show that, for all values of V and with probability one in ω, the spectrum of H is pure point. If V ≤ 1 and V 6= 1/ √ 2, the Lyapounov exponent vanishes only at the two critical energies...

Journal: :Journal of the Robotics Society of Japan 2023

For autonomous mobile robot navigation, localization is an essential capability. Given a equipped with 3D LiDAR sensor, environment map composed of point cloud built beforehand. The thus allowed to localize the position in using sensor scan data. However, sometimes changes due obstacles. Under changing environment, capability might be decreased. this challenge, we propose observation model fram...

2002
Wei-Min Wang

We prove that at large disorder, with large probability and for a set of Diophantine frequencies of large measure, Anderson localization in Z is stable under localized time-quasi-periodic perturbations by proving that the associated quasi-energy operator has pure point spectrum. The main tools are the Fröhlich-Spencer mechanism for the random component and the Bourgain-Goldstein-Schlag mechanis...

Journal: :Journal of spectral theory 2022

We study the Schrödinger operator in plane with a step magnetic field function. The bottom of its spectrum is described by infimum lowest eigenvalue band function, for which we establish existence and uniqueness non-degenerate minimum. discuss curvature effects on localization properties ground states, among other applications.

Journal: :CoRR 2012
Felix Krahmer Götz E. Pfander

Recent sampling theorems allow for the recovery of operators with bandlimited Kohn-Nirenberg symbols from their response to a single discretely supported identifier signal. The available results are inherently non-local. For example, we show that in order to recover a bandlimited operator precisely, the identifier cannot decay in time nor in frequency. Moreover, a concept of local and discrete ...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2008
Jung-Wan Ryu G Hur Sang Wook Kim

We study a quasibound state of a delta -kicked rotor with absorbing boundaries focusing on the nature of the dynamical localization in open quantum systems. The localization lengths xi of lossy quasibound states located near the absorbing boundaries decrease as they approach the boundary while the corresponding decay rates Gamma are dramatically enhanced. We find the relation xi approximately G...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید