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@inproceedings{Artino2012SpectralRO, title={Spectral rigidity of automorphic orbits in free groups}, author={M Artino}, year={2012} }

- Published 2012

It is well-known that a point T 2 cvN in the (unprojectivized) Culler–Vogtmann Outer space cvN is uniquely determined by its translation length function k kT W FN !R . A subset S of a free group FN is called spectrally rigid if, whenever T;T 0 2 cvN are such that kgkT D kgkT 0 for every g 2 S then T D T 0 in cvN . By contrast to the similar questions for the Teichmüller space, it is known that for N 2 there does not exist a finite spectrally rigid subset of FN . In this paper we prove that for… CONTINUE READING

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