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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.
1

Elementary states, supergeometry and twistor theory

Pilato, Alejandro Miguel January 1986 (has links)
It is shown that H<sup>p-1</sup> (P<sup>+</sup>, 0 (-m-p)) is a Fréchet space, and its dual is H<sup>q-1</sup>(P<sup>-</sup>, 0 (m-q)), where P<sup>+</sup> and P<sup>-</sup> are the projectivizations of subsets of generalized twistor space (≌ ℂ<sup>p-q</sup>) on which the hermitian form (of signature (p,q)) is positive and negative definite respectively, and 0(-m-p) denotes the sheaf of germs of holomorphic functions homogeneous of degree -m-p. It is then proven, for p = 2 and q = 2, that the subspace consisting of all twistor elementary states is dense in H<sup>p-1</sup>(P<sup>+</sup>, 0(-m-p)). A supermanifold is a ringed space consisting of an underlying classical manifold and an augmented sheaf of <strong>Z</strong><sub>2</sub>-graded algebras locally isomorphic to an exterior algebra. The subcategory of the category of ringed spaces generated by such supermanifolds is referred to as the super category. A mathematical framework suitable for describing the generalization of Yang-Mills theory to the super category is given. This includes explicit examples of supercoordinate changes, superline bundles, and superconnections. Within this framework, a definition of the full super Yang-Mills equations is given and the simplest case is studied in detail. A comprehensive account of the generalization of twistor theory to the super category is presented, and it is used in an attempt to formulate a complete description of the super Yang-Mills equations. New concepts are introduced, and several ideas which have previously appeared in the literature at the level of formal calculations are expanded and explained within a consistent framework.
2

It's pretty super! : A Mathematical Study of Superspace in Fourdimensional, Unextended Supersymmetry

Friden, Eric January 2012 (has links)
Superspace is a fundamental tool in the study of supersymmetry, one that while often used is seldom defined with a proper amount of mathematical rigor. This paper examines superspace and presents three different constructions of it; the original by Abdus Salam and J. Strathdee as well as two modern methods by Alice Rogers and Buchbinder-Kuzenko.Though the structures arrived at are the same the two modern constructions differ in methods, elucidating different important aspects of super-space. Rogers focuses on the underlying structure through the study of supermanifolds, and Buchbinder-Kuzenko the direct correlation with the Poincare superalgebra, and the parametrisation in terms of exponents.
3

The Bose/Fermi oscillators in a new supersymmetric representation

Ihl, Matthias, 1977- 25 October 2011 (has links)
This work deals with the application of supermathematics to supersymmetrical problems arising in physics. Some recent developments are presented in detail. A reduction scheme for general supermanifolds to vector bundles is presented, which significantly simplifies their mathematical treatment in a physical context. Moreover, some applications of this new approach are worked out, such as the Fermi oscillator. / text
4

Extensions supersymétriques des équations structurelles des supervariétés plongées dans des superespaces

Bertrand, Sébastien 06 1900 (has links)
No description available.

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