Abstract.
We survey the analysis around the free difference quotient derivation, which is the natural derivation for variables with the highest degree of noncommutativity. The analogue of the Fourier transform is then bialgebra duality for the bialgebra with derivation-comultiplication to which the free difference quotient gives rise and which involves fully matricial analytic functions. Some of the motivation from free probability, especially free entropy and random matrices are also discussed.
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Communicated by: Yasuyuki Kawahigashi
This article is based on the 2nd Takagi Lectures that the author delivered at the University of Tokyo on May 26 and 27, 2007.
Dan-Virgil Voiculescu; Research supported in part by NSF Grant DMS 0501178.
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Voiculescu, DV. Aspects of free analysis. Jpn. J. Math. 3, 163–183 (2008). https://doi.org/10.1007/s11537-008-0753-4
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DOI: https://doi.org/10.1007/s11537-008-0753-4