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Communications in Mathematical Physics
Article . 1999 . Peer-reviewed
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Topological Approach to Quantum Surfaces

Topological approach to quantum surfaces
Authors: Natsume, Toshikazu; Nest, Ryszard;

Topological Approach to Quantum Surfaces

Abstract

A topological approach to quantisation of closed surfaces is presented. This is done by imposing the following ``minimal'' requirements for a quantisation \(R\) of a closed Riemann surface \(\Sigma\) of genus \(g\geq 2\): \(R\) is a unital \(C^*\)-algebra, both \(R\) and \(C(\Sigma)\) are fibres in a continuous family of \(C^*\)-algebras over a path connected space, and \(R\) is \(KK\)-equivalent to a twisted \(C^*\)-algebra \(C^*_{\text{red}}(\Gamma,\sigma)\) where \(\Gamma\) is the fundamental group of \(\Sigma\) and \(\sigma\) is a group 2-cocycle. A family \(\{R_s\}_{s\in (2,\infty]}\) of \(C^*\)-algebras satisfying above requirements is constructed by using the fact that the universal covering space of \(\Sigma\) can be modelled by the Poincaré disc \(\mathbb D\), and \(\Gamma\) can be identified with a discret subgroup of \(PSU(1,1)\) acting on \(\mathbb D\). The \(K\)-theory and representation theory of \(R_s\) are also described.

Keywords

representation theory, \(K\)-theory, \(C^*\)-algebra, Geometric quantization, Riemann surface, Applications of selfadjoint operator algebras to physics, quantisation of closed surfaces, quantum surface, Noncommutative differential geometry, group 2-cocycle, Poincaré disc

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
13
Average
Top 10%
Average
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