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I've just finished reading

D-branes, matrix theory and K-homology

hep-th/0108085

where spectral triples are proposed for the IIA and IIB string

theories. As this is an older paper (2002), how are spectral triples

currently defined in matrix theory? (i.e., which C*-algebra, Hilbert

space, and self-adjoint unbounded operator are used?)

Thanks,

Mike

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kneemo

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# Matrix Theory and Noncommutative Geometry

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