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handle: 20.500.11767/141590
Abstract We introduce a trilinear functional of differential one-forms for a finitely summable regular spectral triple with a noncommutative residue. We demonstrate that for a canonical spectral triple over a closed spin manifold it recovers the torsion of the linear connection. We examine several spectral triples, including Hodge-de Rham, Einstein-Yang-Mills, almost-commutative two-sheeted space, conformally rescaled noncommutative tori, and quantum SU(2) group, showing that the third one has a nonvanishing torsion if nontrivially coupled.
Mathematics - Differential Geometry, FOS: Physical sciences, 58B34, 46L87, 58J42, 83C65, 58J50, General Relativity and Quantum Cosmology (gr-qc), Mathematical Physics (math-ph), General Relativity and Quantum Cosmology, Mathematics - Spectral Theory, Differential Geometry (math.DG), Mathematics - Quantum Algebra, FOS: Mathematics, Quantum Algebra (math.QA), Spectral Theory (math.SP), Mathematical Physics
Mathematics - Differential Geometry, FOS: Physical sciences, 58B34, 46L87, 58J42, 83C65, 58J50, General Relativity and Quantum Cosmology (gr-qc), Mathematical Physics (math-ph), General Relativity and Quantum Cosmology, Mathematics - Spectral Theory, Differential Geometry (math.DG), Mathematics - Quantum Algebra, FOS: Mathematics, Quantum Algebra (math.QA), Spectral Theory (math.SP), Mathematical Physics
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