Dec 09, 2016
Friday
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11:00 AM - 12:00 PM
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L_p-compression of wreath products and some related groups
Tianyi Zheng (University of California, San Diego)
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- Location
- MSRI: Simons Auditorium
- Video
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- Abstract
We show a formula relating the L_p-compression exponent of a group and its wreath product with a cyclic group for p in [1, 2]. The argument extends the Markov type method introduced by Naor and Peres. Using wreath product as ingredients, we construct finitely generated amenable groups with arbitrary prescribed L_p compression exponent in the interval [0,1]. This can be viewed as an elementary amenable analogue of a result of Arzhantseva, Drutu and Sapir. Joint with Jeremie Brieussel
- Supplements
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