English

Noncommutative Riemannian and Spin Geometry of the Standard q-Sphere

Quantum Algebra 2007-05-23 v2 Representation Theory

Abstract

We study the quantum sphere Cq[S2]C_q[S^2] as a quantum Riemannian manifold in the quantum frame bundle approach. We exhibit its 2-dimensional cotangent bundle as a direct sum Ω0,1Ω1,0\Omega^{0,1}\oplus\Omega^{1,0} in a double complex. We find the natural metric, volume form, Hodge * operator, Laplace and Maxwell operators. We show that the q-monopole as spin connection induces a natural Levi-Civita type connection and find its Ricci curvature and q-Dirac operator DD. We find the possibility of an antisymmetric volume form quantum correction to the Ricci curvature and Lichnerowicz-type formulae for D2D^2. We also remark on the geometric q-Borel-Weil-Bott construction.

Keywords

Cite

@article{arxiv.math/0307351,
  title  = {Noncommutative Riemannian and Spin Geometry of the Standard q-Sphere},
  author = {S. Majid},
  journal= {arXiv preprint arXiv:math/0307351},
  year   = {2007}
}

Comments

28 pages amslatex, added projectors and trivialisation