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 113 for “"Boundedness"”.
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[Pi 0 1] Classes Boundedness and Degrees
… purpose, we investigate different notions of boundedness before identifying two somewhat universal classes of bounded Π 0 1 classes, then simply called bounded and computably bounded Π 0 1 classes, and a nice way of representing them. After that, we turn to the core of the thesis. That is, we …
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Convergence and Boundedness of Probability-One Homotopies for Model Order Reduction
The optimal model reduction problem, whether formulated in the H² or H<sup>∞</sup> norm frameworks, is an inherently nonconvex problem and thus provides a nontrivial computational challenge. This study systematically examines the requirements of probability-one homotopy methods to guarantee global …
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Variable Structure and Ultimate Boundedness control and stabilization of flexible robotic systems
… Structure control and (ii) Nonlinear Ultimate Boundedness control. Nonlinear Ultimate Boundedness control is a continuous control wherein the joint angle tracking error is uniformly ultimately bounded in the closed-loop system; Analytical derivations of these two schemes are presented. A …
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Maximum principle, mean value operators and quasi boundedness in non-euclidean settings
… of operator, and introduce the notion of “quasi-boundedness”. Then we show the strict relationship between this notion, the fundamental solution of the given operator, and the regularity of the boundary points.
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Boundedness, Hypoellipticity and Schatten-Von Neumann properties for Global Pseudo-differential Operators on R^d.
L'abstract è presente nell'allegato / the abstract is in the attachment
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Count-Regression-Based Empirical Causal Analysis from a Potential Outcomes Perspective: Accounting for Boundedness, Discreteness, Dispersion and Unobservable Confounding
… characteristics of count-valued outcomes such as boundedness (outcome nonnegative), discreteness (outcome has countable support) and dispersion (conditional variance and other higher order conditional moments of the outcome not necessarily equal to its conditional mean) of count data, and …
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Robust adaptive control and filtering
… and identification. These include the uniform boundedness or mean-square boundedness of all closed-loop signals (robust boundedness, robust ultimate boundedness), the closed-loop system tracking error performance in the presence (robust performance), and absence (nominal performance) of …
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The complexity of Petri net transformations
… Transformations that preserve liveness and boundedness are considered. Liveness and boundedness are possibly the two most important properties in the analysis of Petri nets. Unfortunately, although decidable, determining such properties is intractable in the general Petri net. The thesis …
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Adaptive neural controller based on convex parametrization
… with sliding mode control to lead to global boundedness. We revisit this problem in this thesis and suggest a specific class of neural networks that employ convex activation functions. By using the algorithms that have been proposed previously for adaptive control in the presence of …
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Feedback linearization, invertibility of map, zero dynamics, and nonlinear control of the space station
Based on feedback linearization and ultimate boundedness theory, a new approach to attitude control of the space station using control moment gyros (CMG's) is presented. A linearizing transformation is derived to obtain a simple linear representation of the nonlinear pitch axis dynamics. A feedback …
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Complements on Log Canonical Fano Varieties and Index Conjecture of Log Calabi-Yau Varieties
… Then we will move on to prove results about boundedness of complements for global log canonical Fano 3-fold. In other direction, we will prove the index conjecture for log Calabi-Yau varieties in dimension 3 in full generality and then prove some new inductive results towards the conjecture. …
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Rings and modules with Krull dimension
… finite annihilation, prime submodules, boundedness and the relationships between various forms of Krull dimension.
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Robust adaptive flight control systems in the presence of time delay
… control for a class of plants with global boundedness in the presence of time-delay is established. This class of plants pertains to linear systems whose states are accessible. The global boundedness is accomplished using a standard adaptive control law with a projection algorithm for a …
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A Model of Project Continuation in Game Jams and Hackathons
… game jam that directs users in breaking the boundedness of their game concept, a deployment study where the bot was deployed and used in an online game jam, and a longitudinal study that followed the continuation practices of individuals who used the bot during the jam. In the presented …
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Bounds for the Spectral Mean Value of Central Values of L-functions
We prove two results about the boundedness of spectral mean value of Rankin-Selberg L-functions at s = 1/2, which is an analogue for Eisenstein series of X. Li's result for Hecke-Maass forms.
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Discrete Harmonic Analysis related to classical orthogonal polynomials
… Fourier series and the problem of the norm boundedness of the transplantation operator are studied. Regarding the first problem, the multiplier of an interval related to Jacobi polynomials is defined and sufficient conditions are given to ensure its norm boundedness with weights. If we …
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Qualitative Properties Of Solutions Of Fully Nonlinear Equations And Overdetermined Problems
… equations or systems in half spaces without the boundedness assumptions on the solutions. Using the blow-up method and doubling lemma, we remove the boundedness assumption on solutions which was often required in the proof of Liouville-type theorems in the literature.</p> <p> Part II is to …
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New geometric techniques for linear programming and graph partitioning
… special form in which we merely need to certify boundedness of the linear program. As boundedness does not depend upon the right-hand-side vector, we run a modified version of the shadow-vertex simplex method in which we start with a random right-hand-side vector and then modify this vector …
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Robustness of Model Reference Adaptive Schemes With Respect to Modeling Errors
… control, algorithms are modified to guarantee boundedness. Decentralized adaptive control schemes guaranteeing the stability of a class of large-scale systems are proposed.
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Regularity of the D-bar-Neumann Operator, the Bergman Projection and the Canonical Solution Operator of D-bar-Equation
… we focus on the regularity, compactness and boundedness of these operators.</p> <p>In chapter 2, we study the weakly pseudoconvex points on the boundary of a class of Hartogs domains. On that class of domains, we show that Property $(P)$ of the boundary, the compactness of the …
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