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Dissertations / Theses on the topic 'Family symmetry'

Author: Grafiati

Published: 11 March 2023

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1

Patt, Brian Lawrence. "Higgs family symmetry and supersymmetry." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/36397.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 2006.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (p. 77-79).<br>In this thesis we investigate building models of family symmetry that give the Higgs fields family structure. We construct several models, starting with 2 generation models then moving onto 3 generation models. These models are described sequentially in chapters 2 through 6. All of these models are supersymmetric a

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2

MacDonnell, Creighton. "A family of nonholonomic systems with symmetry." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq24548.pdf.

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3

Franzini, Tommaso. "Thermodynamic Bethe Ansatz for a family of scattering theories with U_q(sl(2)) symmetry." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/20546/.

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In this thesis work we analyze a wide class of 1+1 dimensional integrable scattering theories with Uq(sl(2)) quantum group symmetry, whose asymptotic states are multiplets of particles with iso-spin k/2. Their two-body S-matrices have been recently found in terms of the R matrix of the quantum group. Since they satisfy Yang-Baxter equation, unitarity and crossing symmetry, they represent a consistent integrable factorized scattering theory. The question of finding the corresponding underlying QFT can be addressed once the Thermodynamic Bethe Ansatz (TBA) is obtained. In this work we get

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4

Berry, Robert D. "A New Approach to Lie Symmetry Groups of Minimal Surfaces." BYU ScholarsArchive, 2004. https://scholarsarchive.byu.edu/etd/321.

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The Lie symmetry groups of minimal surfaces by way of planar harmonic functions are determined. It is shown that a symmetry group acting on the minimal surfaces is isomorphic with H × H^2 — the analytic functions and the harmonic functions. A subgroup of this gives a generalization of the associated family which is examined.

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5

Pavanelli, Simone. "Mirror symmetry for a two parameter family of Calabi-Yau three-folds with Euler characteristic 0." Thesis, University of Warwick, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396954.

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6

Jansson, Henrik. "Unification in Particle Physics." Thesis, Uppsala universitet, Högenergifysik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-295813.

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During the twentieth century, particle physics developed into a cornerstone of modern physics, culminating in the Standard Model. Even though this theory has proved to be of extraordinary power, it is still incomplete in several respects. It is our aim in this bachelor thesis to discuss some possible theories beyond the Standard Model, the main focus being on Grand Unified Theories, while also taking a look at attempts of further unication via discrete family symmetry. At the heart of all these theories lies the concept of local gauge invariance, which is introduced as a fundamental principle,

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7

Nazaikinskii, Vladimir, Anton Savin, Bert-Wolfgang Schulze, and Boris Sternin. "Elliptic theory on manifolds with nonisolated singularities : I. The index of families of cone-degenerate operators." Universität Potsdam, 2002. http://opus.kobv.de/ubp/volltexte/2008/2632/.

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We study the index problem for families of elliptic operators on manifolds with conical singularities. The relative index theorem concerning changes of the weight line is obtained. AN index theorem for families whose conormal symbols satisfy some symmetry conditions is derived.

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8

Jonasson, Martin. "Hur vanligt är det? : Våld i nära relationer: män som offer och kvinnor som förövare. En systematisk litteraturstudie." Thesis, Linnéuniversitetet, Institutionen för socialt arbete, SA, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-13556.

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The purpose of this study was to describe and analyze IntimatePartner Violence (IPV). How does contemporary science illustrate men as victimsand women as perpetrators in these relationships? Ten articles were presentedand analyzed in a systematic literature study. The results show that men beingabused by their female intimate partner, do exist and that they in many ways doconform to abused women. There are many underlying causes to the violence inclose relationships. There are also many shapes and degrees in violence and inIntimate Partner Violence (IPV). Furthermore, Intimate Partner Violence

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9

Miker, Julie. "Eigenvalue Inequalities for a Family of Spherically Symmetric Riemannian Manifolds." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_diss/783.

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This thesis considers two isoperimetric inequalities for the eigenvalues of the Laplacian on a family of spherically symmetric Riemannian manifolds. The Payne-Pólya-Weinberger Conjecture (PPW) states that for a bounded domain Ω in Euclidean space Rn, the ratio λ1(Ω)/λ0(Ω) of the first two eigenvalues of the Dirichlet Laplacian is bounded by the corresponding eigenvalue ratio for the Dirichlet Laplacian on the ball BΩof equal volume. The Szegö-Weinberger inequality states that for a bounded domain Ω in Euclidean space Rn, the first nonzero eigenvalue of the Neumann Laplacian μ1(Ω) is maximized

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10

Rife, Nathan Prentice. "Tacticity control of polypropylene using a C2-symmetric family of catalysts." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85795.

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A family of C2-symmetric catalysts was designed and synthesized with the intent to polymerize propylene. The catalyst was designed to be C2-symmetric for the specific goal that the catalyst would have two identical sites for the propagation of the polymer and therefore eliminate some of the stereoerrors that occur in the propagation of the polymer chain. This catalyst would also operate under simple enantiomorphic site control and therefore the insertion of the monomer would be governed by the ligand surrounding the active site. The ligands were synthesized with increasing degrees of steric bu

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11

Iordanov, Iordan. "Delaunay triangulations of a family of symmetric hyperbolic surfaces in practice." Thesis, Université de Lorraine, 2019. http://www.theses.fr/2019LORR0010/document.

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La surface de Bolza est la surface hyperbolique orientable compacte la plus symétrique de genre 2. Pour tout genre supérieur à 2, il existe une surface orientable compacte construite de manière similaire à la surface de Bolza et ayant le même type de symétries. Nous appelons ces surfaces des surfaces hyperboliques symétriques. Cette thèse porte sur le calcul des triangulations de Delaunay (TD) de surfaces hyperboliques symétriques. Les TD de surfaces compactes peuvent être considérées comme des TD périodiques de leur revêtement universel (dans notre cas, le plan hyperbolique). Une TD est pour

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12

edu, rojkovsk@math upenn. "Family Algebras of Representations with Simple Spectrum." ESI preprints, 2001. ftp://ftp.esi.ac.at/pub/Preprints/esi1045.ps.

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13

Ulgen, Burcin Emre. "Robust Estimation And Hypothesis Testing In Microarray Analysis." Phd thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612352/index.pdf.

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Microarray technology allows the simultaneous measurement of thousands of gene expressions simultaneously. As a result of this, many statistical methods emerged for identifying differentially expressed genes. Kerr et al. (2001) proposed analysis of variance (ANOVA) procedure for the analysis of gene expression data. Their estimators are based on the assumption of normality, however the parameter estimates and residuals from this analysis are notably heavier-tailed than normal as they commented. Since non-normality complicates the data analysis and results in inefficient estimators, it is ver

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14

Baron, Anne. "Synthetic approaches to two potential anticancer agents : symmetric bis-benzimidazoles, a new family of DNA minor groove binders, and the marine natural product Eleutherobin." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342097.

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15

Mohelník, Ladislav. "Kořeny moravské urbanistické struktury." Doctoral thesis, Vysoké učení technické v Brně. Fakulta architektury, 2014. http://www.nusl.cz/ntk/nusl-233261.

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The thesis has been written on the basis of main architectural concepts and their application in real life within a historical context investigation. Main architectural concepts are represented in a harmony of architectural composition that deals with relations among form, structure and space in the unique art work. Genius loci play very important role in the architectural creation - it represents a special and extra-ordinary urban locality and its architectural value in the historical, geographical and cultural context. The origin of Ostravice village within the historical frame concept of Mo

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16

Bayes, Ryan David. "Measurement of the decay parameter rho and a search for non-Standard Model decays in the muon decay spectrum." Thesis, 2010. http://hdl.handle.net/1828/2973.

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The study of the muon decay process μ+ → e+νeν ̄μ is a powerful constraint on the behaviour of the weak interaction, without contamination of the other, stronger, fundamental interactions. The spectrum measured from the momentum and angles of the decay positrons is parametrized using a set of four decay parameters. The purpose of the TWIST experiment is to measure these decay parameters to an unprecedented precision; an order of magnitude improvement in the uncertainties over measurements completed before the TWIST experiment. Measurements of the muon decay parameters constrain the values of a

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17

Augustyniak, Maciej. "Une famille de distributions symétriques et leptocurtiques représentée par la différence de deux variables aléatoires gamma." Thèse, 2008. http://hdl.handle.net/1866/8192.

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