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Showing 1 to 20 of 4236 for “"quasi"”.
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Quasi-Gauges, Quasi-Uniformities and Bitopological Spaces
Made available in DSpace on 2014-12-11T18:23:41Z (GMT). No. of bitstreams: 1 7114924.pdf: 2335438 bytes, checksum: 6c316e4cfb937146bbb19daca6ea8660 (MD5) Previous issue date: 1970
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Quasi-metric geometry
… ubiquitous in many branches of mathematics. A quasi-metric is a generalization of the familiar notion of metric. This dissertation examines what happens in this new setting of quasi-metrics. In particular, in the first chapter we introduce quasi-metrics, provide examples of them, then, given an …
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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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Quasi-elliptic cohomology
We introduce and study quasi-elliptic cohomology, a theory related to Tate K-theory but built over the ring $\mathbb{Z}[q^{\pm}]$. In Chapter 2 we build an orbifold version of the theory, inspired by Devoto's equivariant Tate K-theory. In Chapter 3 we construct power operation in the orbifold …
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Quasi-Pure E0-Semigroups
We introduce the class of quasi-pure E0-semigroups acting on a von Neumann algebra as that with equal tail and fixed-point algebras and we describe these notable algebras for E0-semigroups of B(H) where H is a separable Hilbert space. We consider the classes of pure, quasi-pure and ergodic …
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Transitive quasi-uniform spaces
… 1 deals with basic properties of the category of quasi-uniform spaces and its full subcategory Qut of transitive quasi-uniform spaces. Chapter 2 concerns Fletcher's construction. We extend the class of covers to which this construction may be applied and study the functoriality of the …
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Quasi-geostrophic jet meandering
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Meteorology, 1980.
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On Modular Quasi-Pseudometric Spaces
… spaces in asymmetric settings (called modular quasi-pseudometric spaces). Our results generalise and extend the concept of a modular metric on an arbitrary set, as presented in the work of Chistyakov. We show that Chistyakov's results also hold in an asymmetric framework. Furthermore, we show …
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On Quasi-Linear Sequential Machines
Made available in DSpace on 2014-12-08T22:23:38Z (GMT). No. of bitstreams: 1 6503191.pdf: 1132393 bytes, checksum: ea45524dca8cb7f02dfce4ec2cf55838 (MD5) Previous issue date: 1964
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Convexity in quasi-metric spaces
… of an injective hull in the categories of T-quasi-metric spaces and of T-ultra-quasi-metric spaces with nonexpansive maps.
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The lattice of quasi-uniformities
… a similar investigation into the lattice of quasi-uniformities θ(X) on a set X. It starts off with a summary of results obtained for the lattice of topologies on X, which, having been studied in great detail in the past, is intended as an example as to what may be achieved with θ(X). An …
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THE INDEX THEOREM FOR QUASI-TORI
… In this thesis, this theorem is generalized to quasi-tori, i.e. connected complex abelian Lie groups which are not necessarily compact. In view of the Remmert–Morimoto decomposition of quasi-tori as well as the Künneth formula, it suffices to consider only Cousin-quasi-tori, i.e. quasi-tori …
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Quasi-One-Dimensional Ultracold Fermi Gases
… reduced with higher dimensionality. Thus, the quasi-1D regime is the optimal region of parameter space to find this phase. The search for direct evidence of FFLO continues in this regime.
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Quasi-elastic resonant x-ray scattering
… the scattering amplitude operator of the quasi-elastic scattering is expressed as the summation of multipole moment operators $M\sp{(k)}(l\sb{i},s\sb{i})$ of the valence shell involved in the resonance$\sp1$ with distinct polarization factors. Each multipole moment operator is expressed as …
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Quasi-static Methods in Neutron Transport
… Embracing such tendency, in the present work the quasi-static approach has been adopted and implemented for the design of computational codes capable of performing reliable transient calculations. The underlying idea has been the development of the kinetic module on top of the transport solver, in …
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Some results on quasi-uniform spaces
<p>"An example of a quasi-uniform space which is complete but not strongly complete is constructed. We also give an example to show that a T<sub>1</sub> space does not necessarily have a T<sub>1</sub> strong completion.</p> <p>The definition of Cauchy filter is discussed. An alternate definition, …
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Better-Quasi-Orders: Extensions and Abstractions
… classes of �-scattered partial orders are better-quasi-ordered under embeddability. This generalises theorems of Laver, Corominas and Thomass�e regarding �-scattered linear orders, �-scattered trees, countable pseudo-trees and N-free partial orders. In particular, a class of countable partial …
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Foliations For Quasi-Fuchsian 3-Manifolds
In this paper, we prove that if a quasi-Fuchsian 3-manifold contains a minimal surface whose principal curvatures are in (-1, 1), then it admits a foliation such that each leaf is a surface of constant mean curvature. The key method that we use here is volume preserving mean curvature flow.
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Prime and Quasi-Prime Number Races
… number race problem is discussed where we race ""quasi-primes"" or composite numbers that are the product of two odd primes modulo 4. We then consider what ""percentage"" of the time that the residue class 1 leads the residue class 3 in this ""quasi-prime"" race modulo 4."
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