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Homomorphism to R of Semidirect Products: A Dynamical Construction |
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PP: 2395-2401 |
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Author(s) |
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Gastão Bettencourt,
Sérgio Mendes,
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Abstract |
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| We define a modified version of Erschler and Karlsson construction of homomorphisms from random walks [A. Erschler
and A. Karlsson, Ann. Inst. Fourier (Grenoble) 60 (2010), no. 6, 2095−2113]. We show that our definition is well adapted to semidirect
products. The same construction is conjectured to work also for other classes of maps like quasi-morphisms. |
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