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Algebraically Determined Rings of FunctionsMcLinden, Alexander Patrick 08 1900 (has links)
Let R be any of the following rings: the smooth functions on R^2n with the Poisson bracket, the Hamiltonian vector fields on a symplectic manifold, the Lie algebra of smooth complex vector fields on C, or a variety of rings of functions (real or complex valued) over 2nd countable spaces. Then if H is any other Polish ring and φ:H →R is an algebraic isomorphism, then it is also a topological isomorphism (i.e. a homeomorphism). Moreover, many such isomorphisms between function rings induce a homeomorphism of the underlying spaces. It is also shown that there is no topology in which the ring of real analytic functions on R is a Polish ring.
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An approach to estimating the variance components to unbalanced cluster sampled survey data and simulated dataRamroop, Shaun 30 November 2002 (has links)
Statistics / M. Sc. (Statistics)
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'O Hidden Face!' : an analysis and contextualisation of Priaulx Rainier's 'Requiem'Van Rhyn, Chris 03 1900 (has links)
Thesis (MMUS (Music))--Stellenbosch University, 2010. / ENGLISH ABSTRACT: The South African-born British composer Priaulx Rainier (1903-1986) wrote her
Requiem (1955-1956) for solo tenor and choir to a text by surrealist poet David
Gascoyne. The poem (completed in 1940) contradicts the commemorative genre of the
requiem and instead anticipates the prospective victims of the war that was to come. Due
to the disturbances caused by the war, Rainier only started working on the music fifteen
years later in 1955.
Existing discourse on Rainier has been shaped by the thoughtless regurgitation of
opinions, reviews and clichéd biographical models. Since very few detailed analyses of
Rainier’s works exist, this thesis attempts to address this gap in research on this
composer. It therefore aims to contribute to a more balanced, evidence-based discourse.
The significance of the Requiem is that it was said by commentators to indicate a period
of increasing abstraction in Rainier’s oeuvre. The findings regarding tonality in this work
may therefore serve as a point of reference in future analyses of works preceding and
following the Requiem.
In the literature review, recurring issues in the discourse on Rainier (such as the
numerous references to her childhood in Natal as an influence on her works and the
descriptions of her works as possessing a masculine gender identity) is highlighted. The
contextualisation that follows includes a reception-based periodisation of Rainier’s works
and a “biography” of the Requiem, with a special focus on the intersection between the
symbolic world of David Gascoyne and the Requiem and the sculptor Barbara
Hepworth’s influence on Rainier’s work. Underpinning these contextual considerations
is a set theory analysis of the work that attempts to illustrate the composer’s aspiration
towards musical abstraction as a creative force. The findings of the analysis are also
contextualised with regard to existing notions of Rainier’s style and tonality in her music. / AFRIKAANSE OPSOMMING: Die Suid-Afrikaans gebore Britse komponis Priaulx Rainier (1903-1986) se Requiem
(1955-1956) vir solo-tenoor en koor is ’n toonsetting van ’n gedig deur die surrealistiese
digter David Gascoyne. Die gedig weerspreek die gedenkende karakter van die requiem
genre deurdat dit vooruitwys na die slagoffers van die oorlog wat op hande was. As
gevolg van die onderbrekings wat deur die oorlog veroorsaak was, het Rainier eers
vyftien jaar later, in 1955, aan die musiek begin werk.
Die ondeurdagte herhaling van opinies, resensies en biografiese clichés kenmerk huidige
diskoers oor Rainier. Aangesien daar min gedetailleerde analises van Rainier se werke in
die literatuur bestaan, poog hierdie tesis om bestaande leemtes in die navorsing oor
Rainier te vul. Dit streef ook na die ontwikkeling van ’n meer gebalanseerde, bewysgebaseerde
diskoers. Die belang van hierdie werk setel hoofsaaklik daarin dat dit volgens
sommige bronne dui op ’n kenteringsmoment in Rainier se oeuvre, waarna haar werke
meer abstrak geword het. Die bevindinge rakende tonaliteit in hierdie werk kan dus dien
as ’n verwysingspunt vir toekomstige analises van Rainier se werke wat die Requiem
voorafgaan en volg.
Herhalende elemente in die diskoers oor Rainier (soos die invloed van haar kinderjare in
Natal op haar werke en die beskrywings van ’n manlike gender-identeit in haar werke)
word in die literatuurstudie uitgelig. Die konstekstualisering wat volg bestaan uit ’n
literatuur-gebaseerde periodisering van haar werke en ’n “biografie” van die Requiem wat
fokus op die verhouding tussen simboliek in die werke van David Gascoyne en die
Requiem en die invloed van die beeldhouer Barbara Hepworth op Rainier se werke. Die
kontekstualisering word gevolg deur ’n ‘set’-teorie-analise van die werk waarin gepoog
word om die komponis se strewe na musikale abstraksie as kreatiewe inspirasie aan te
toon. Die bevindinge van die analise word dan vergelyk met die bestaande opvattinge oor
styl en tonaliteit in Rainier se werke. / COMPOSITIONS: In Paradisum for SATB choir 2
Droom for mezzo-soprano and piano: 11
• Kuspad 14
• Sy 17
• Glasblaser 20
• Glasprater 23
String trio arrangements from Droom:
• Glasblaser 26
• Glasprater 30
Het Hom! for tenor saxophone 34
The beauty in sorrow for string quartet: 37
• First Movement 40
• Second Movement 49
• Third Movement 54
Symphonata for orchestra: 61
• First Movement 62
• Second Movement 66
• Third Movement 71
• Fourth Movement 77
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Analysis of Memory Interference in Buffered Multi-processor Systems in Presence of Hot Spots and Favorite MemoriesSen, Sanjoy Kumar 08 1900 (has links)
In this thesis, a discrete Markov chain model for analyzing memory interference in multiprocessors, is presented.
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Equivalent Sets and Cardinal NumbersHsueh, Shawing 12 1900 (has links)
The purpose of this thesis is to study the equivalence relation between sets A and B: A o B if and only if there exists a one to one function f from A onto B. In Chapter I, some of the fundamental properties of the equivalence relation are derived. Certain basic results on countable and uncountable sets are given. In Chapter II, a number of theorems on equivalent sets are proved and Dedekind's definitions of finite and infinite are compared with the ordinary concepts of finite and infinite. The Bernstein Theorem is studied and three different proofs of it are given. In Chapter III, the concept of cardinal number is introduced by means of two axioms of A. Tarski, and some fundamental theorems on cardinal arithmetic are proved.
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Examples and Applications of Infinite Iterated Function SystemsHanus, Pawel Grzegorz 08 1900 (has links)
The aim of this work is the study of infinite conformal iterated function systems. More specifically, we investigate some properties of a limit set J associated to such system, its Hausdorff and packing measure and Hausdorff dimension. We provide necessary and sufficient conditions for such systems to be bi-Lipschitz equivalent. We use the concept of scaling functions to obtain some result about 1-dimensional systems. We discuss particular examples of infinite iterated function systems derived from complex continued fraction expansions with restricted entries. Each system is obtained from an infinite number of contractions. We show that under certain conditions the limit sets of such systems possess zero Hausdorff measure and positive finite packing measure. We include an algorithm for an approximation of the Hausdorff dimension of limit sets. One numerical result is presented. In this thesis we also explore the concept of positively recurrent function. We use iterated function systems to construct a natural, wide class of such functions that have strong ergodic properties.
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Interactions between combinatorics, lie theory and algebraic geometry via the Bruhat ordersProctor, Robert Alan January 1981 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Bibliography: leaves 100-102. / by Robert Alan Proctor. / Ph.D.
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Topology and combinatorics of ordered setsWalker, James William January 1981 (has links)
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE. / Bibliography: p. 135-138. / by James William Walker. / Ph.D.
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Existence of laws with given marginals and specified supportShortt, Rae Michael Andrew January 1982 (has links)
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mathematics, 1982. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND SCIENCE / Bibliography: leaves 106-109. / by Rae Michael Andrew Shortt. / Ph.D.
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Permutation Groups and Puzzle Tile Configurations of Instant Insanity IIJustus, Amanda N 01 May 2014 (has links)
The manufacturer claims that there is only one solution to the puzzle Instant Insanity II. However, a recent paper shows that there are two solutions. Our goal is to find ways in which we only have one solution. We examine the permutation groups of the puzzle and use modern algebra to attempt to fix the puzzle. First, we find the permutation group for the case when there is only one empty slot at the top. We then examine the scenario when we add an extra column or an extra row to make the game a 4 × 5 puzzle or a 5 x 4 puzzle, respectively. We consider the possibilities when we delete a color to make the game a 3 × 3 puzzle and when we add a color, making the game a 5 × 5 puzzle. Finally, we determine if solution two is a permutation of solution one.
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