Torus equivariant spectral triples for odd dimensional quantum spheres coming from $C^*$-extensions

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dc.creatorChakraborty, Partha Sarathi
dc.creatorPal, Arupkumar
dc.date2007-01-25
dc.date.accessioned2026-07-07T07:43:02Z
dc.date.available2026-07-07T07:43:02Z
dc.descriptionThe torus group $(S^1)^{\ell+1}$ has a canonical action on the odd dimensional sphere $S_q^{2\ell+1}$. We take the natural Hilbert space representation where this action is implemented and characterize all odd spectral triples acting on that space and equivariant with respect to that action. This characterization gives a construction of an optimum family of equivariant spectral triples having nontrivial $K$-homology class thus generalizing our earlier results for $SU_q(2)$. We also relate the triple we construct with the $C^*$-extension \[ 0\longrightarrow \clk\otimes C(S^1)\longrightarrow C(S_q^{2\ell+3}) \longrightarrow C(S_q^{2\ell+1}) \longrightarrow 0. \]
dc.descriptionLaTeX2e, 12 pages
dc.identifierhttps://arxiv.org/abs/math/0701738
dc.identifierhttp://arxiv.org/abs/math/0701738
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/122669
dc.subjectK-Theory and Homology
dc.subjectOperator Algebras
dc.subjectQuantum Algebra
dc.subject58B34, 46L87, 19K33
dc.titleTorus equivariant spectral triples for odd dimensional quantum spheres coming from $C^*$-extensions
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