Median structures on asymptotic cones and homomorphisms into mapping class groups
Median structures on asymptotic cones and homomorphisms into mapping class groups
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渐近锥上的中值结构和同态到映射类组
DOI:
10.1112/plms/pdq025
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发表时间:
2011
影响因子:
1.8
通讯作者:
Behrstock J
中科院分区:
文献类型:
--
作者:
Behrstock J
The main goal of this paper is a detailed study of asymptotic cones of the mapping class groups. In particular, we prove that every asymptotic cone of a mapping class group has a bi-Lipschitz equivariant embedding into a product of real trees, sending limits of hierarchy paths onto geodesics, and with image a median subspace. One of the applications is that a group with Kazhdan's property (T) can have only finitely many pairwise non-conjugate homomorphisms into a mapping class group. We also give a new proof of the rank conjecture of Brock and Farb (previously proved by Behrstock and Minsky, and independently by Hamenstaedt).
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DOI:
10.5802/aif.2348
发表时间:
2008
期刊:
Annales de l'Institut Fourier
影响因子:
--
作者:
Vincent Guirardel
通讯作者:
Vincent Guirardel
影响因子:
0.7
作者:
D. Groves
通讯作者:
D. Groves
DOI:
10.1090/mmono/115
发表时间:
1992
期刊:
Geometric & Functional Analysis GAFA
影响因子:
--
作者:
N. V. Ivanov;E. Primrose
通讯作者:
E. Primrose
DOI:
10.1016/s0012-9593(98)80137-7
发表时间:
1998
影响因子:
1.9
作者:
Ken'ichi Ohshika;L. Potyagailo
通讯作者:
L. Potyagailo
影响因子:
1.4
作者:
A. Guichardet
通讯作者:
A. Guichardet