Results 31 to 40 of about 185,882 (261)
Rationally almost periodic sequences, polynomial multiple recurrence and symbolic dynamics [PDF]
Ergodic Theory and Dynamical Systems, 2018 A set$R\subset \mathbb{N}$is calledrationalif it is well approximable by finite unions of arithmetic progressions, meaning that for every$\unicode[STIX]{x1D716}>0$there exists a set$B=\bigcup _{i=1}^{r}a_{i}\mathbb{N}+b_{i}$, where$a_{1},\ldots ,a_{r},b_{1},\ldots ,b_{r}\in \mathbb{N}$, such that$$\begin{eqnarray}\overline{d}(R\triangle B):=\limsup ...
Bergelson, V. +3 more
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The feasibility of Gazefinder under 12 months of age infants
Scientific Reports, 2021 Eye-tracking to evaluate gaze patterns has developed as an assessment tool for children with autism spectrum disorder (ASD). Gazefinder is one of Eye-tracking devices and few studies have investigated whether it can measure the gaze data of infants under
Shuntaro Fukushima +8 more
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Abstract and Applied Analysis, 2011 Firstly, we propose a concept of uniformly almost periodic functions on almost periodic time scales and investigate some basic properties of them. When time scale T=ℝ or ℤ, our definition of the uniformly almost periodic functions is equivalent to the ...
Yongkun Li, Chao Wang
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Scaling and Intermittency in Animal Behavior [PDF]
, 1999 Scale-invariant spatial or temporal patterns and L\'evy flight motion have been observed in a large variety of biological systems. It has been argued that animals in general might perform L\'evy flight motion with power law distribution of times between ...
A Harnos +19 more
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Micro and Nano Systems Letters, 2020 A comparative study of elastic properties and mode I fracture energy has been presented between conventional carbon fibre (CF)/epoxy and advanced carbon nanotube (CNT)/epoxy laminated composite materials.
Jyotikalpa Bora, Sushen Kirtania
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On the ground states of the Bernasconi model [PDF]
, 1997 The ground states of the Bernasconi model are binary +1/-1 sequences of length N with low autocorrelations. We introduce the notion of perfect sequences, binary sequences with one-valued off-peak correlations of minimum amount.
+23 more
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Hybrid Quasicrystals, Transport and Localization in Products of Minimal Sets
, 2007 We consider convex combinations of finite-valued almost periodic sequences (mainly substitution sequences) and put them as potentials of one-dimensional tight-binding models. We prove that these sequences are almost periodic.
Carvalho, Tulio O. +1 more
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Almost Periodic Solutions of a Discrete Mutualism Model with Feedback Controls
Discrete Dynamics in Nature and Society, 2010 We consider a discrete mutualism model with feedback controls. Assuming that the coefficients in the system are almost periodic sequences, we obtain the existence and uniqueness of the almost periodic solution which is uniformly asymptotically stable.
Zheng Wang, Yongkun Li
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Attosecond photoelectron spectroscopy of helium doubly excited states
Physical Review Research, 2023 We describe a numerical method that simulates the interaction of the helium atom with sequences of femtosecond and attosecond light pulses. The method, which is based on the close-coupling expansion of the electronic configuration space in a B-spline ...
Luca Argenti, Eva Lindroth
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Modeling of linear fading memory systems [PDF]
, 1996 Motivated by questions of approximate modeling and identification, we consider various classes of linear time-varying bounded-input-bounded output (BIBO) stable fading memory systems and the characterizations are proved.
Makila, P.M., Partington, J.R.
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