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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.
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Showing 141 to 150 of 2312 (0.033 seconds)| 141 |
Surgery on simply connected Poincare spacesHutt, Steve January 1989 (has links)
No description available.
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| 142 |
Diffeomorphism invariant gauge theoriesTorres Gomez, Alexander January 2012 (has links)
A class of diffeomorphism invariant gauge theories is studied. The action for this class of theories can be formulated as a generalisation of the well known topological BF-theories with a potential for the B-field or in a pure connection formulation. When the gauge group is chosen to be SU(2) the theory describes gravity. For a larger gauge group G one gets a unified model of gravity and Yang-Mills fields. A background for the theory is chosen which breaks the gauge group G by selecting in it a preferred SU(2) subgroup which describes the gravitational sector. The Yang-Mills sector is described by the part of the gauge group that commutes with this SU(2). Thus, when the action is expanded around this background the spectrum of the linearised theory consists of the usual gravitons plus Yang-Mills fields. In addition, there is a set of massive scalar fields that are charged both under the gravitational and Yang-Mills subgroups. The latter sector is described by the part of the gauge group that does not commute with SU(2). A fermionic Lagrangian is also proposed which can be coupled to the BF plus potential formulation.
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| 143 |
Integral transforms of the Minkowski question mark functionAlkauskas, Giedrius January 2008 (has links)
The Minkowski question mark function F(x) arises as a real distribution function of rationals in the Farey (alias, Stern-Brocot or Calkin-Wilf) tree. In this thesis we introduce its three natural integral transforms: the dyadic period function G(z), defined in the cut plane; the dyadic zeta function zeta_M(s), which is an entire function; the characteristic function m(t), which is an entire function as well. Each of them is a unique object, and is characterized by regularity properties and a functional equation, which reformulates in its own terms the functional equation for F(x). We study the interrelations among these three objects and F(x). It appears that the theory is completely parallel to the one for Maass wave forms for PSL_2(Z). One of the main purposes of this thesis is to clarify the nature of moments of the Minkowski question mark function.
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| 144 |
Topological specificity of ColE1 dimer resolutionGuhathakurta, Anjan January 1994 (has links)
No description available.
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| 145 |
The axiom : 'all free groups are projective in Ab(E)'Bartley, Michael George January 1988 (has links)
No description available.
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| 146 |
Splitting theroms for Poincare duality groupsRoller, Martin Albrecht January 1987 (has links)
No description available.
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| 147 |
Some homotopy properties of classical linksVallejo, L. C. January 1986 (has links)
No description available.
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| 148 |
Characterizations of homotopy 3-spheresRego, E. January 1988 (has links)
No description available.
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| 149 |
Current Mode Wave Active Filters : a topology for high frequency integrated filtersTingleff, Jens January 1994 (has links)
No description available.
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| 150 |
Performance modelling and analysis of multicomputer interconnection networksMin, Geyong January 2003 (has links)
No description available.
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