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Green functions and spectra on free products of cyclic groups. (English) Zbl 0639.60008
Green functions of a stochastic operator on a free product of cyclic groups are explicitly evaluated as algebraic functions. The spectra are investigated by Morse theoretic arguments.

MSC:
60B15 Probability measures on groups or semigroups, Fourier transforms, factorization
20E05 Free nonabelian groups
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References:
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