An acyclic extension of the braid group |
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| Authors: | Peter Greenberg Vlad Sergiescu |
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| Institution: | (1) Departmento de Mathematicas, CINVESTAV, Ap. Postal 14-740, C.P. 07000 Mexico 14, D.F., Mexico;(2) INSTITUT FOURIER Laboratoire de Mathématiques associé au CNRS, Université de Grenoble I, BP. 74, 38402 St-Martin d'Hères Cedex, France |
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| Abstract: | We relate Artin's braid groupB
℞=lim→Bn to a certain groupF′ ofpl-homeomorphisms of the interval. Namely, there exists a short exact sequence 1→B
∞→A→F′→1 whereH
kA=0,k≥1. |
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| Keywords: | |
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