Noncommutative Geometry of the h-deformed Quantum Plane

Details Noncommutative Geometry of the h-deformed Quantum Plane Noncommutative Geometry of the h-deformed Quantum Plane

1997-08-30

arxiv.org/abs/q-alg/9709007v2

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

22 pages, Latex2e, Section 3.1 revised, References changed

Scientific paper

10.1088/0305-4470/31/11/013

The $h$-deformed quantum plane is a counterpart of the $q$-deformed one in the set of quantum planes which are covariant under those quantum deformations of GL(2) which admit a central determinant. We have investigated the noncommutative geometry of the $h$-deformed quantum plane. There is a 2-parameter family of torsion-free linear connections, a 1-parameter sub-family of which are compatible with a skew-symmetric non-degenerate bilinear map. The skew-symmetric map resembles a symplectic 2-form and induces a metric. It is also shown that the extended $h$-deformed quantum plane is a noncommutative version of the Poincar\'e half-plane, a surface of constant negative Gaussian curvature.

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