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 2283 for “"Dynamical"”.
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Comparison of Kane's dynamical equations to traditional dynamical techniques
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1991.
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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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Stability in dynamical polysystems
A dynamical polysystem consists of a family of continuous dynamical systems, all acting on a given metric space. The first chapter of the present thesis shows a generalization of control systems via dynamical polysystems and establishes the equivalence of the two notions under certain lipschitz …
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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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Unstable radiative-dynamical interactions
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1988.
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Dynamical Phase-Change Phenomena
Matter on earth exists mostly in three different phases of solid, liquid, and gas. With extreme amounts of energy, temperature, or pressure, a matter can be changed between the phases. Six different types of phase-change phenomena are possible: freezing (the substance changes from a liquid to a …
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Dynamical problems in coagulation equations
Neste trabalho são analisados alguns aspectos do comportamento asimptótico dos sistemas de um número infinito de equações diferenciais ordinárias que modelam a cinética de partículas de coagulação dados por $\dot{c}_1 = \alpha t^{\omega} - c_1^2 - c_1 \sum_{j=1}^{\infty} c_j},\dot{c}_j = c_1 …
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Discrete multiple-valued dynamical systems
In this paper we introduce the idea of multiple valued iteration theory. For a set X and family of functions ${\cal F} = \{ f\sb{i}\} \sb{i\in I}$ indexed by a countable set I, each $f\sb{i} : X \to X,$ we consider all possible ways of forming the $n\sp{th}$ iterate, for $n\in {\rm I\!N}.$ We study …
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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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Dynamical behavior of graphene models
… that twodimensional (2D) crystals were thermodynamically unstable. Andre Geim and Konstantin Novoselov managed to obtain graphene using a rather surprising technique called the scotch tape method. The scotch tape method involves carefully peeling off layer after layer in graphite which is a …
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Dynamical studies in relativistic cosmology
… analysis of the evolution equations for the dynamical variables and all the constraints these satisfy in classical General Relativity, that there are no new consistent perfect fluid cosmologies with the kinematic variables and the electric and/or magnetic parts of the Weyl curvature all …
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Dynamical effects in pionic atoms
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 1984
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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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