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 14 of 14 for “"Discrete dynamics"”.
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Treatment of constraints in discrete dynamics
Thesis (B.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Multiscale modelling of continuum and discrete dynamics in materials with complicated microstructure
… a smooth macroscale model for a one-dimensional discrete diffusion system with rapidly varying microscale diffusivity, finite scale separation, and Dirichlet boundary conditions. I apply both centre manifold theory and homogenization theory to build the macroscale model. Both theories find same …
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Efficiency and abstraction in task and motion planning
… manipulation. The combination of continuous and discrete dynamics induced by contact creates severe computational challenges, and most known practical approaches rely on hand-designed discrete representations to mitigate computational issues. However, the relationship between the discrete …
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A finite state machine framework for robust analysis and control of hybrid systems
… describing interactions between analog and discrete dynamics, are pervasive in engineered systems and pose unique, challenging performance verification and control synthesis problems. Existing approaches either lead to computationally intensive and sometimes undecidable problems, or make use …
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Discrete Wave Propagation In Quadratically Nonlinear Media
Discrete models are used in describing various microscopic phenomena in many branches of science, ranging from biology through chemistry to physics. Arrays of evanescently coupled, equally spaced, identical waveguides are prime examples of optical structures in which discrete dynamics can be easily …
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Computational Methods for Optimal Control of Hybrid Systems
… is meant systems with interacting continuous and discrete dynamics. Code for computations has been developed in parallel to the theory. The optimal control methods studied in this thesis are global, i.e. the entire state space is considered simultaneously rather than searching for locally optimal …
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Network approaches to understanding the functional effects of focal brain lesions
… Adolescent brain development demonstrated discrete dynamics with distinct gender specific and age-gender interactions. Network architecture also became more robust, particularly to random removal of nodes and edges. Overall these data provide evidence for the early vulnerability rather than …
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Automated Design of Multiphase Space Missions Using Hybrid Optimal Control
… two nested loops: an outer-loop that handles the discrete dynamics and finds the optimal mission structure in terms of the categorical variables, and an inner-loop that performs the optimization of the corresponding continuous-time dynamical system and obtains the required control history. Genetic …
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Analyzing the opinion dynamics models discrete & continuous
In this thesis we analyze some of the opinion dynamics in both discrete and continuous cases. In the discrete case, we will find some criteria under which we can say more about the behavior of the dynamics such as convergence of the agents to the same opinion, or consensus. For this purpose, we …
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Preference Games and Sink Equilibria
… the model requires only that players know a discrete order over the outcomes; and relevance, asserting that our model depends only on preferences over outcomes players can choose between. We give a new discussion of the Prisoner's Dilemma, where we show that the paradox can be rephrased as a …
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Preference Games and Sink Equilibria
… the model requires only that players know a discrete order over the outcomes; and relevance, asserting that our model depends only on preferences over outcomes players can choose between. We give a new discussion of the Prisoner's Dilemma, where we show that the paradox can be rephrased as a …
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Constructive global analysis of hybrid systems
… determined by the interaction of continuous and discrete dynamics. These systems typically contain variables or signals that take values from a continuous set and also variables that take values from a discrete, typically finite set. These continuous or discrete-valued variables or signals depend …
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NODE INFLUENCE IN NETWORK-BASED DISCRETE DYNAMICAL SYSTEMS
… complex systems can be modeled as network-based discrete dynamical systems, where individual nodes (representing some variable of interest) are connected by edges that describe their interactions. Each node can take on different states relevant to the network under investigation (for example, a …
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Invertibility and observability of switched systems with inputs and outputs
… operate in several different modes, with some discrete dynamics governing the mode changes. Each mode of operation is described by a dynamical subsystem having an internal state, an external input (which can be thought of as a disturbance or a control signal), and a measured output. …