Representations of the Weyl Algebra in Quantum Geometry

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dc.creatorFleischhack, Christian
dc.date2004-07-04
dc.date2009-05-04
dc.date.accessioned2026-07-07T13:11:03Z
dc.date.available2026-07-07T13:11:03Z
dc.descriptionThe Weyl algebra A of continuous functions and exponentiated fluxes, introduced by Ashtekar, Lewandowski and others, in quantum geometry is studied. It is shown that, in the piecewise analytic category, every regular representation of A having a cyclic and diffeomorphism invariant vector, is already unitarily equivalent to the fundamental representation. Additional assumptions concern the dimension of the underlying analytic manifold (at least three), the finite wide triangulizability of surfaces in it to be used for the fluxes and the naturality of the action of diffeomorphisms -- but neither any domain properties of the represented Weyl operators nor the requirement that the diffeomorphisms act by pull-backs. For this, the general behaviour of C*-algebras generated by continuous functions and pull-backs of homeomorphisms, as well as the properties of stratified analytic diffeomorphisms are studied. Additionally, the paper includes also a short and direct proof of the irreducibility of A.
dc.description71 pages, 1 figure, LaTeX. Changes v2 to v3: previous results unchanged; some addings: inclusion of gauge transforms, several comments, Subsects. 1.5, 3.7, 3.8; comparison with LOST paper moved to Introduction; Def. 2.5 modified; some typos corrected; Refs. updated. Article now as accepted by Commun. Math. Phys
dc.identifierhttps://arxiv.org/abs/math-ph/0407006
dc.identifierhttp://arxiv.org/abs/math-ph/0407006
dc.identifierCommun.Math.Phys.285:67-140,2009
dc.identifierdoi:10.1007/s00220-008-0593-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229171
dc.subjectMathematical Physics
dc.subject81T05 (Primary) 46L30, 32B20, 57R50, 58D20, 83C45 (Secondary)
dc.titleRepresentations of the Weyl Algebra in Quantum Geometry
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