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arxiv: hep-th/0411029 · v4 · submitted 2004-11-02 · ✦ hep-th · quant-ph

Heat kernel coefficients for compact fuzzy spaces

classification ✦ hep-th quant-ph
keywords fuzzyspacescoefficientscompactexpansiongeometricheatkernel
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I discuss the trace of a heat kernel Tr[e^(-tA)] for compact fuzzy spaces. In continuum theory its asymptotic expansion for t -> +0 provides geometric quantities, and therefore may be used to extract effective geometric quantities for fuzzy spaces. For compact fuzzy spaces, however, an asymptotic expansion for t -> +0 is not appropriate because of their finiteness. It is shown that effective geometric quantities are found as coefficients of an approximate power-law expansion of the trace of a heat kernel valid for intermediate values of t. An efficient method to obtain these coefficients is presented and applied to some known fuzzy spaces to check its validity.

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