Christian Fleischhack

Representations of the Weyl algebra in quantum geometry

The Weyl algebra

Stratification of the generalized gauge orbit space

{\mathfrak{A}}

On the Gribov problem for generalized connections

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

Proof of a Conjecture by Lewandowski and Thiemann

{\mathfrak{A}}

Kinematical Uniqueness of Loop Quantum Gravity

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