Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 683 for “"Dynamical Systems"”.
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Quasi-Dynamical Systems
Made available in DSpace on 2014-12-09T22:17:41Z (GMT). No. of bitstreams: 1 6808054.pdf: 2574111 bytes, checksum: 6e4d28a54656184dd0152331a14d40e6 (MD5) Previous issue date: 1967
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Coupled nonlinear dynamical systems
In this dissertation, we study coupled nonlinear dynamical systems that exhibit new types of complex behavior. We numerically and analytically examine a variety of dynamical models, ranging from systems of ordinary differential equations (ODE) with novel elements of feedback to systems of partial …
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Multipliers of dynamical systems
… a theory of Herz–Schur multipliers of a C∗-dynamical system, extending the classical Herz–Schur multipliers, making Herz–Schur multiplier techniques available to study a much larger class of C∗-algebras. Furthermore, we will also introduce and study generalised Schur multipliers, and derive …
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Chaos and Dynamical Systems
… new branch formed: chaos. Chaos is the study of dynamical systems that vary greatly with respect to initial conditions. The slightest change in an initial condition, a seemingly unnoticeable change, can yield a drastically different result if the system is chaotic. Hence the common term relating …
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Arithmetic and dynamical systems
… of topics in the area of the interaction between dynamical systems and number theory. We look at two diophantine approximation problems in local �fields of positive characteristic, one a generalisation of the Khintchine{Groshev theorem, another a central limit theorem. We also prove a …
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Dynamical systems on networks
"We obtain results for two distinct dynamical models: the Kuramoto model, a general model for coupled oscillator systems, and a model for opinion formation in social networks. Our main focus is on understanding the fixed points of these systems and their stability. For many models the stability of …
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Discrete multiple-valued dynamical systems
… = rx$ (mod 1) as maps of the interval. For these systems, we determine the structure of orbits and study their discrete time averages.
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Variational Inference in Dynamical Systems
Dynamical systems are a powerful formalism to analyse the world around us. Many datasets are sequential in nature, and can be described by a discrete time evolution law. We are interested in approaching the analysis of such datasets from a probabilistic perspective. We would like to maintain …
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Simulating Dynamical Systems from Data
The ever-increasing availability of data from dynamical systems offers an opportunity for automated data-driven decision-making in various domains. However, a significant barrier to realizing this potential is the issues inherent to these datasets: high-dimensionality, noise, sparsity, and …
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Approximation of Parametric Dynamical Systems
Dynamical systems are widely used to model physical phenomena and, in many cases, these physical phenomena are parameter dependent. In this thesis we investigate three prominent problems related to the simulation of parametric dynamical systems and develop the analysis and computational framework …
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Stability in Graph Dynamical Systems
… model of many simulation models is graph dynamical systems (GDS). This dynamical system, its implementation, and analyses on each will be the focus of this paper. When using a simulation model to answer a research question, it is important to describe this underlying mathematical model in …
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Taming of Complex Dynamical Systems
… local existence and uniqueness of solutions to systems of differential equations is well understood and has a long history. However, the problem of proving global existence and uniqueness is more difficult and fails even for some very simple ordinary differential equations. It is still not known …
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Optimization methods for dynamical systems learning
L'abstract è presente nell'allegato / the abstract is in the attachment
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Stability results for constrained dynamical systems
… framework to model and analyse dynamic systems with constraints. This framework facilitates modelling of the system behaviour through natural physical variables of the system, while preserving the topological constraints of the system. The main purpose of this dissertation is to …
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Reservoir Computing: computation with dynamical systems
In het onderzoeksgebied Machine Learning worden systemen onderzocht die kunnen leren op basis van voorbeelden. Binnen dit onderzoeksgebied zijn de recurrente neurale netwerken een belangrijke deelgroep. Deze netwerken zijn abstracte modellen van de werking van delen van de hersenen. Zij zijn in …
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Maximum likelihood estimation in dynamical systems
Short description of contents: <br> <br>Dynamical systems are frequently used to model the time evolution of a system. <br>Typically, they depend on unknown parameters and their trajectories <br>are only partially observed. <br>Here maximum likelihood methods are used for the estimation of the …
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Dynamical systems education on the WWW
The study of dynamical systems is significant in mathematics education. The medium of the Internet and the World-Wide Web (WWW) opens new avenues in dynamical systems education. The following aspects of the WWW technology pertaining to dynamical systems education are studied: representation of …
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Spectral Analysis of Complex Dynamical Systems
… spectral analysis on two separate complex dynamical systems. The vibrations along a continuous string or a string with beads on it are the governed by the continuous or discrete wave equation. We derive a small-vibrations model for multi-connected continuous strings that lie in a plane. We …
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