Results 11 to 20 of about 1,554,943 (273)

Invariant tori of full dimension for a nonlinear Schrödinger equation with an almost periodic potential

AIP Advances, 2023
In this paper, we study a nonlinear Schrödinger equation with an almost-periodic potential, subject to periodic boundary conditions. Under appropriate assumptions on the potential, we obtain many small-amplitude, time-almost-periodic solutions for the ...
Jie Rui
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Statistical properties of periodic orbits in 4-disk billiard system: pruning-proof property [PDF]

, 2005
Periodic orbit theory for classical hyperbolic system is very significant matter of how we can interpret spectral statistics in terms of semiclassical theory. Although pruning is significant and generic property for almost all hyperbolic systems, pruning-
Alekseev, Aurich, Aurich, Berry, Berry, Bohigas, Brack, Braun, Bunimovich, Bunimovich, Casati, Chen, Cvitanović, Cvitanović, Davis, Gaspard, Giannoni, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Gutzwiller, Haake, Hagiwara, Hagiwara, Hannay, Hansen, Hansen, Harayama, Heusler, Ikeda, Ioss, Ishii, Ishii, Leboeuf, Lerner, Mehta, Miller, Milnor, Morita, Müller, Müller, Müller, Ozorio de Almeida, Parry, Pollicott, Pollicott, Primack, Richter, Sano, Shudo, Sieber, Sieber, Sieber, Sieber, Sieber, Spehner, Stöckmann, Szász, Takeshi Asamizuya, Tanner, Turek, Turek, Xia   +67 more
core   +1 more source

Random-Walk Laplacian for Frequency Analysis in Periodic Graphs

Sensors, 2021
This paper presents the benefits of using the random-walk normalized Laplacian matrix as a graph-shift operator and defines the frequencies of a graph by the eigenvalues of this matrix.
Rachid Boukrab, Alba Pagès-Zamora
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Standard and singular wavelet analysis

Системный анализ и прикладная информатика, 2021
The paper suggests that the use of classical wavelets may be auxiliary in the analysis of a periodic signal. This is because the intuitive interpretation of the wavelet transform is not obvious.
V. M. Romanchak, M. A. Hundzina
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Research on Medium and Long-Term Runoff Forecast of Xijiang River in Dry Season Based on Statistical Model

Renmin Zhujiang, 2022
Accurate medium and long-term runoff forecast is of great guiding significance to the development and utilization of water resources,allocation optimization,and water dispatch.Based on the three statistical models of mean generating function,periodic ...
LAN Yuxi, ZHANG Yin, NONG Zhenchang, WEI Yongjiang   +3 more
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Limit state analysis of asymmetrical microstructures based on yield design computational homogenization approach

Vietnam Journal of Mechanics, 2022
This paper presents a novel formulation for the computational homogenization analysis of materials at the limit state. The polynomial interpolations are employed to impose the periodic boundary conditions for the fluctuating term of the displacement ...
Phuc L. H. Ho, Canh V. Le, Phuong H. Nguyen, Chanh T. Ngo   +3 more
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ADI-MRTD Algorithm for Periodic Structures Analysis

International Journal of Antennas and Propagation, 2018
In this paper, a novel algorithm based on the alternating direction implicit (ADI) multiresolution time-domain (MRTD) method for periodic structure simulation is proposed.
Xiaohua Dong, Yiwang Chen, Pin Zhang, Yichao Teng, Xiaobo Zhuansun   +4 more
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Almost periodic functions on Hausdorff almost periodic time scales

Advances in Difference Equations, 2017
This paper is devoted to generalizing the notion of almost periodic functions on time scales. We introduce a new class of almost periodic time scales called Hausdorff almost periodic time scales by using the Hausdorff distance and propose a more general ...
Desheng Ji, Liu Yang, Jimin Zhang
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Mutperiod: Analysis of periodic mutation rates in nucleosomes

Computational and Structural Biotechnology Journal, 2021
Nucleosomes modulate DNA damage and repair, resulting in periodic mutation rates in nucleosomal DNA. Previous research has characterized these patterns in many sequenced tumor genomes; however, computational tools to identify and quantify these ...
Benjamin Morledge-Hampton, John J. Wyrick   +1 more
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Output Reachable Set Analysis for Periodic Positive Systems

International Journal of Mathematics and Mathematical Sciences, 2021
In this study, we use the union of the bounding hyperpyramids to estimate the output reachable set for periodic positive systems under two classes of exogenous disturbances.
Ilyas Sitli, Fouad Lahmidi, Abdelwahed Namir, Mouhcine Naim   +3 more
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