Results 31 to 40 of about 17,550 (161)
Fractal and Fractional, 2022 To further understand the dynamical characteristics of chaotic systems with a hidden attractor and coexisting attractors, we investigated the fundamental dynamics of a novel three-dimensional (3D) chaotic system derived by adding a simple constant term ...
Chengwei Dong
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Symbolic Entropy of the Amplitude rather than the Instantaneous Frequency of EEG Varies in Dementia
Entropy, 2015 The dynamics of human electroencephalography (EEG) have been proved to be related to cognitive activities. This study separately assessed the two EEG components, amplitude and rhythm, aiming to capture their individual contributions to cognitive ...
Pei-Feng Lin +4 more
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Dynamical behavior of a parametrized family of one-dimensional maps
Electronic Journal of Qualitative Theory of Differential Equations, 2022 The connection of these maps to homoclinic loops acts like an amplifier of the map behavior, and makes it interesting also in the case where all map orbits approach zero (but in many possible ways).
Erkan Muştu
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Heart Rate Fragmentation: A Symbolic Dynamical Approach
Frontiers in Physiology, 2017 Background: We recently introduced the concept of heart rate fragmentation along with a set of metrics for its quantification. The term was coined to refer to an increase in the percentage of changes in heart rate acceleration sign, a dynamical marker of
Madalena D. Costa +2 more
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Nonlinear causal influences assessed by mutual compression entropy
Current Directions in Biomedical Engineering, 2016 Autonomic control of the heart rate was demonstrated to be complex and nonlinear. Respiratory sinus arrhythima plays a crucial role in heart rate vagal modulation.
Schumann Andy +2 more
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Современные информационные технологии и IT-образование, 2021 The proposed article examines the methodology for developing students' thinking flexibility by combining various approaches to the implementation of educational mathematical tasks.
Valeriy Sekovanov +3 more
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, 2015 We introduce a theory of timed symbolic dynamics unifying results from timed automata theory and symbolic dynamics. The timed sofic shift spaces we define are a way of seeing timed regular languages as shift spaces on general alphabets (in classical symbolic dynamics, sofic shift spaces correspond to regular languages).
openaire +2 more sources
Teaching Ordinal Patterns to a Computer: Efficient Encoding Algorithms Based on the Lehmer Code
Entropy, 2019 Ordinal patterns are the common basis of various techniques used in the study of dynamical systems and nonlinear time series analysis. The present article focusses on the computational problem of turning time series into sequences of ordinal patterns. In
Sebastian Berger +3 more
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On the Correspondence between Subshifts of Finite Type and Statistical Mechanics Models
Entropy, 2022 Several classical problems in symbolic dynamics concern the characterization of the simplex of measures of maximal entropy. For subshifts of finite type in higher dimensions, methods of statistical mechanics are ideal for dealing with these problems.
Luis Armando Corona +2 more
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Genericity of chaos for colored graphs
Topological Algebra and its Applications, 2021 To each colored graph one can associate its closure in the universal space of isomorphism classes of pointed colored graphs, and this subspace can be regarded as a generalized subshift.
Lijó Ramón Barral, Nozawa Hiraku
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