An Ergodic Theorem for the Quasi-regular Representation of the Free Group

نویسنده

  • ADRIEN BOYER
چکیده

We prove the weak-∗ convergence of a certain sequence of averages of unitary operators associated to the action of the free group on its Gromov boundary. This result, which can be thought as an ergodic theorem à la von Neumann with coefficients, provides a new proof of the irreducibility of the quasi-regular representation of the free group.

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تاریخ انتشار 2016