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Article Dans Une Revue Complex Analysis and Operator Theory Année : 2016

Free Jacobi process associated with one projection: local inverse of the flow

Résumé

We pursue the study started in \cite{Dem-Hmi} of the dynamics of the spectral distribution of the free Jacobi process associated with one orthogonal projection. More precisely, we use Lagrange inversion formula in order to compute the Taylor coefficients of the local inverse around $z=0$ of the flow determined in \cite{Dem-Hmi}. When the rank of the projection equals $1/2$, the obtained sequence reduces to the moment sequence of the free unitary Brownian motion. For general ranks in $(0,1)$, we derive a contour integral representation for the first derivative of the Taylor series which is a major step toward the analytic extension of the flow in the open unit disc.

Dates et versions

hal-01126691 , version 1 (06-03-2015)

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Nizar Demni. Free Jacobi process associated with one projection: local inverse of the flow. Complex Analysis and Operator Theory, 2016, 10 (3), pp.527-543. ⟨10.1007/s11785-015-0475-6⟩. ⟨hal-01126691⟩
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