Zobrazeno 1 - 10
of 6 744
pro vyhledávání: '"liu, Jianjun"'
Autor:
Liu, Jianjun, Xiang, Duohui
We prove an abstract Birkhoff normal form theorem for Hamiltonian partial differential equations on torus. The normal form is complete up to arbitrary finite order. The proof is based on a valid non-resonant condition and a suitable norm of Hamiltoni
Externí odkaz:
http://arxiv.org/abs/2411.13312
Autor:
Jin, Zhongwei, Jin, Yijie, Shu, Fangzhou, Fang, Bin, Hong, Zhi, Liu, Jianjun, Yao, Yuhang, Chen, Keyi, Mei, Shengtao
Traditional superoscillation focusing typically requires complex optimization of the incident light field. These complexities may limit the practical application of superoscillation. High-order radially polarized Laguerre-Gaussian beams inherently su
Externí odkaz:
http://arxiv.org/abs/2410.12335
In this paper, we study high-dimensional nonlinear quantum harmonic oscillator equation. We show the equation admits many time quasi-periodic solutions by establishing an abstract infinite dimensional KAM theorem with multiple normal frequencies. The
Externí odkaz:
http://arxiv.org/abs/2407.19312
Autor:
Shen, Dunbin, Zhu, Xuanbing, Tian, Jiacheng, Liu, Jianjun, Du, Zhenrong, Wang, Hongyu, Ma, Xiaorui
Hyperspectral target detection (HTD) identifies objects of interest from complex backgrounds at the pixel level, playing a vital role in Earth observation. However, HTD faces challenges due to limited prior knowledge and spectral variation, leading t
Externí odkaz:
http://arxiv.org/abs/2407.06841
Let $ H $ be a subgroup of a finite group $ G $. We say that $ H $ satisfies the $ \Pi $-property in $ G $ if for any chief factor $ L / K $ of $ G $, $ |G/K : N_{G/K}(HK/K\cap L/K )| $ is a $ \pi (HK/K\cap L/K) $-number. In this paper, we obtain som
Externí odkaz:
http://arxiv.org/abs/2405.05106
Publikováno v:
Chinese Physics Letters 41, 037103 (2024) Chinese Physics Letters 41, 037103 (2024)
The hybrid skin-topological effect (HSTE) in non-Hermitian systems exhibits both the skin effect and topological protection, offering a novel mechanism for the localization of topological edge states (TESs) in electrons, circuits, and photons. Howeve
Externí odkaz:
http://arxiv.org/abs/2403.13521
The Moir\'e patterns generated by altering the structural parameters in a two or more layers of periodic materials, including single-layer structure, interlayer stacking, and twisting parameters, exhibit prosperous topological physical properties. Ho
Externí odkaz:
http://arxiv.org/abs/2401.15849
Let $ H $ be a subgroup of a finite group $ G $. We say that $ H $ satisfies the partial $ \Pi $-property in $ G $ if there exists a chief series $ \varGamma_{G}: 1 =G_{0} < G_{1} < \cdot\cdot\cdot < G_{n}= G $ of $ G $ such that for every $ G $-chie
Externí odkaz:
http://arxiv.org/abs/2311.12633
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing, 2024
Fusion-based hyperspectral image (HSI) super-resolution aims to produce a high-spatial-resolution HSI by fusing a low-spatial-resolution HSI and a high-spatial-resolution multispectral image. Such a HSI super-resolution process can be modeled as an i
Externí odkaz:
http://arxiv.org/abs/2311.08955