Hopf structures in parafermionic and parabosonic algebras and applications of these algebras in physics
Abstract
The subject of this thesis is the algebraic study of parafermionic and parabosonic algebras and especially the determination of the various Hopf structures possibly present in them together with indications of possible applications in physics. In chapter 2, an historical introduction is presented together with the first important results regarding the representations of these algebras, in the language they were first stated by Green, Greenberg and Messiah. The rest of the thesis consists of two parts: · Chapter 3, which constitutes a self-contained mathematical introduction into various topics related to the Hopf algebra theory. · Chapters 4,5,6 in which the original results of the thesis are presented: In chapter 4, we lay down the definitions of bosonic and parabosonic algebras in a modern algebraic language and we prove these algebras to be Z2-gr. algebras. The bosonic algebra is also proved to be a quotient algebra of the parabosonic algebra. We show that the notion of Z2 grading ...
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