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 155 for “"group theory"”.
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Some Logical Problems in Group Theory
Made available in DSpace on 2014-12-11T18:23:49Z (GMT). No. of bitstreams: 1 7212365.pdf: 3291993 bytes, checksum: a05c7223d890cb83b8f4a1bf94b290e8 (MD5) Previous issue date: 1971
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Finiteness Conditions in Group Theory: Schmidt's Problem
Made available in DSpace on 2014-12-09T22:17:11Z (GMT). No. of bitstreams: 1 6406173.pdf: 2329466 bytes, checksum: 2f8c7107baa8287ff5abd198ccb23599 (MD5) Previous issue date: 1963
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Renormalization-group theory of correlated electron systems
The thesis applies position-space renormalization-group theory to a variety of correlated electron systems, determining finite-temperature phase diagrams and thermodynamic properties for electron densities both at and away from half-filling. We begin by assessing the effectiveness of the …
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Renormalization group theory for systems far from equilibrium
… absence of noise, to which the renormalization group theory (RG) and the structural stability hypothesis are systematically applied.
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Applications of group theory to few-body physics
… We develop a systematic method, based on group theory, for calculating matrix elements of few-body correlated spatial wavefunctions. This method can, in some sense, be considered a generalization of Racah's viewpoint [17] of calculating shell-model matrix elements. Towards the end, two …
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Group theory predictions for B --> M₁M₂M₃
The study of B meson decays to 3 pseudoscalar mesons MMM provides a promising arena for constraining CP violation from the Standard Model and searching for "new physics". In this thesis we derive decay amplitudes, rates, and CP asymmetries for B mesons decaying to MMM, in the limit of SU(2) isospin …
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In solving the dominating set problem : group theory approach
… that the solution has a non-trivial automorphism group. A general purpose algorithm for solving the dominating set problem is developed by using a coverage test, a wastage test, and the orbit and block structure of the graph's symmetry group to prune the search. The algorithm has been implemented …
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Some Results on Free Groups in Combinatorial Group Theory
Let Fm be a free group of a finite rank m ≥ 2. We prove that there exist two elements u 1, u2 ∈ Fm such that every endomorphism y of Fm with non-cyclic image is completely determined by y (u1), y (u2). We obtain this result as a corollary of the construction of a C-test word vn( x1,...,xn), …
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Group theory and information theory algorithms in deep learning
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2025-02-04 without embargo terms
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Some combinatorial aspects in algebraic topology and geometric group theory
… result is a self-contained dissertation on the theory of the fundamental group and of the coverings. Finally, there are some recent problems in geometric group theory which are related to the presence of finitely presented groups which appear naturally as fundamental groups.
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Geometric and homological methods in group theory: constructing small group resolutions
Given two groups K and H for which we have the free crossed resolutions, B* --> K and C* --> H respectively. Our aim is to construct a free crossed resolution, A* --> G, by way of induction on the degree n, for any semidirect product G = K x H. First we show how to find a set Z1 of generators for …
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Auditory group theory with applications to statistical basis methods for structured audio
Thesis (Ph. D.)--Massachusetts Institute of Technology, Program in Media Arts & Sciences, 1998.
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Small Group Theory and Political Leadership in Brazil: The Case of The Castelo Branco Regime
Made available in DSpace on 2014-12-08T23:26:23Z (GMT). No. of bitstreams: 1 6915278.pdf: 10607664 bytes, checksum: b43ec575127632fd9632be74fa66e4c0 (MD5) Previous issue date: 1969
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An Application of the Lie Group Theory of Continuous Point Transformations to the Vlasov-Maxwell Equations (Plasma Physics)
… of partial differential equations under Lie groups of continuous point transformations is employed to study the Vlasov-Maxwell equations of plasma physics. These equations are first expressed in arbitrary orthogonal, curvilinear coordinates. Their invariance properties are studied in …
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Construction of a Multi-Dimensional Lagrangian Hydrodynamics Model of a Plasma Using the Lie Group Theory of Point Transformations
The translation conservation laws were used in a two-dimensional computer simulation of the confined eddy problem to demonstrate an application of the equations. Comparison of the results produced by the code using the conservation law governing equations with previous work is limited to …
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The social reference-group theory of job satisfaction : a comparative study of Coloured and White salesmen in South Africa
… order to investigate the validity of Herzberg's theory that job satisfaction and job dissatisfaction are qualitatively different and that, as a result, they should be measured separately. Next, measures were obtained of the subjects' feelings of internal versus external control in life. Separate …
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An analysis of the relevance of deliberative democracy, agonistic pluralism, and pluralist group theory in explaining Twitter activity during the Scottish independence referendum 2014.
… tends to be used in opposition to deliberative theory. Aspects of liberalism and communitarianism are also used in the empirical study as an aid to this comparison, by applying a model taken from Deen G. Freelon (2010). Uniquely, in addition to activist groups, journalists and MSPs are focused …
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