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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

Finite group graded lie algebraic extensions and trefoil symmetric relativity, standard model, yang mills and gravity theories

Wills, Luis Alberto January 2008 (has links)
Mode of access: World Wide Web. / Thesis (Ph. D.)--University of Hawaii at Manoa, 2004. / Includes bibliographical references (leaves 159-164). / Electronic reproduction. / Also available by subscription via World Wide Web / x, 164 leaves, bound ill. 29 cm
142

An inquiry into the suitability of various regions sharing a common currency taking explicit account of each economy's size as well as symmetry of shocks

Foster, Adrian Nixon, Economics, Australian School of Business, UNSW January 2009 (has links)
This thesis builds on the established body of research into the suitability of a country joining other countries in a monetary union by focusing on the potential costs resulting from the loss of monetary policy independence that is a corollary to forming a monetary union. We continue in the tradition of several other authors by extracting supply and demand shocks for a range of countries from VAR analysis and comparing the symmetry of these economic shocks between potential members of a monetary union. The theoretical contribution of this thesis is that we explicitly incorporate the size of each potential currency union member in the analysis. This contribution is motivated by the observation that a large country would be a more significant part of a given currency union than would a small country. Thus the monetary policy settings of a given currency union would to a larger extent reflect the economic dynamics of a given country the larger that country is relative to the size of the union overall. Previous authors have largely neglected this issue. We explicitly incorporate the size of each potential members' economy in our analytical framework and re-assess the merits of a range of regions forming a currency union. Using the framework developed, we also inquire into the optimality of current monetary regimes in two regions, the North American continent and in Australia. The first of these is motivated by Mundell's seminal article on currency unions where he asked in largely qualitative terms whether the US and Canada are better currency realms than a hypothetical north south divide of the continent. The second is motivated by the observation that Australia’s economy embodies (economically) very different sub-regions due to the difference importance of commodities production in different parts of the country. We ask whether these different regions experience symmetrical or largely idiosyncratic shocks and find support for the latter.
143

The pion-nucleon sigma term and the SU(3) Cloudy Bag Model /

Jameson, Iain. January 1991 (has links) (PDF)
Thesis (Ph. D.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 1991. / Includes bibliographical references (leaves 135-146).
144

The role of chiral symmetry in extrapolations of lattice QCD results to the physical regime /

Hackett-Jones, E. J. January 2001 (has links) (PDF)
Thesis (M.Sc.)--University of Adelaide, Dept. of Physics and Mathematical Physics, 2001? / Copies of author's previously published works inserted. Bibliography: p. 56-57.
145

A convergent beam electron diffraction study of some rare-earth perovskite oxides /

Jones, Daniel M. January 2007 (has links)
Thesis (M.Sc.)--University of Western Australia, 2008.
146

Killing spinors and affine symmetry tensors in Gödel's Universe /

Cook, Samuel A. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 96-102). Also available on the World Wide Web.
147

Extra! extra!--dimensions and symmetries /

Fox, Patrick J., January 2002 (has links)
Thesis (Ph. D.)--University of Washington, 2002. / Vita. Includes bibliographical references (p. 99-116).
148

Infinite product groups /

Penrod, Keith, January 2007 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Mathematics, 2007. / Includes bibliographical references (p. 27-28).
149

The Neʼeman-Fairlie SU(2/1) model

Asakawa, Takeshi, Fischler, Willy, Neʼeman, Yuval, January 2004 (has links) (PDF)
Thesis (Ph. D.)--University of Texas at Austin, 2004. / Supervisors: Willy Fischler and Yuval Neʼeman. Vita. Includes bibliographical references.
150

Quebra de Simetria no Universo Primordial

Cuzinatto, R. R [UNESP] 27 April 2007 (has links) (PDF)
Made available in DSpace on 2016-05-17T16:50:55Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-04-27. Added 1 bitstream(s) on 2016-05-17T16:54:22Z : No. of bitstreams: 1 000855676.pdf: 503229 bytes, checksum: c62a118de1f0a2d1f4f6ba7582f1a8aa (MD5) / Apresentamos a solução analítica completa para as equações de Friedmann válida na presença da constante cosmológica 'lâmbda', do parâmetro de curvatura 'capa', de matéria não-relativística (bariônica ou escura) e de radiação. Este é o modelo 'lâmbda' IND. 'gama'CDM, que exibe claramente a aceleração recente e inclui modelos particulares, como o 'lâmbda'CDM. Obtemos o conjunto completo dos geradores de simetria para o elemento de linha de Friedmann-Robertson-Walker (FRW) pela integração direta das equações de Killing. O processo de cálculo leva à função U = 'a POT. 2'H, produto do quadrado do fator de escala pela derivada temporal da função de Hubble. U constante fixa a solução maximalmente simétrica de de Sitter (dS) - com 10 geradores - em detrimento de qualquer outra solução de FRW - com 6 geradores. A interpretação física dos geradores de dS nas coordenadas comóveis não é evidente, o que exige a transcrição deles para coordenadas estáticas de dS. Nestas coordenadas, eles têm uma interpretação clara, dada a relação direta com os geradores de Poincaré via contrações de Wigner-Inönú. Um passo necessário é a construção das transformações de Robertson generalizadas entre o intervalo estático de dS e o elemento de linha de FRW para os três valores de 'capa' / Analytic expressions for solutions in the Standard Model are presented here for all combinations of 'lâmbda' = 0, 'lâmbda'diferente 0, 'capa' = 0 and 'capa'diferente'0 in the presence and absence of radiation and nonrelativistic matter. The most complete case (here called the 'lâmbda' IND. 'gama'CDM Model) has 'lâmbda'diferente 0, 'capa'diferente'0, and supposes the presence of radiation and dust. It exhibits clearly the recent onset of acceleration and reduces to the particular models such as the 'lâmbda'CDM Model. A detailed examination of the Killing equations in Robertson-Walker coordinates shows how the addition of matter and/or radiation to a de Sitter Universe breaks the symmetry generated by four of its Killing fields. The product U = 'a POT. 2'H of the squared scale parameter by the time-derivative of the Hubble function encapsulates the relationship between the two cases: the symmetry is maximal when U is a constant, and reduces to the 6-parameter symmetry of a generic Friedmann-Robertson-Walker model when it is not. As the fields physical interpretation is not clear in these coordinates, comparison is made with the Killing fields in static coordinates, whose interpretation is made clearer by their direct relationship to the Poincaré group generators via Wigner-Inönü contractions

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