50 citations · 100 across the 18 of their papers we have counts for
Showing 2009 · math.ATShow all
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math.AT2009★ 19 cited
On braid groups and homotopy groups
F R Cohen, Jie Wu
This article is an exposition of certain connections between the braid groups, classical homotopy groups of the 2-sphere, as well as Lie algebras attached to the descending central…
math.AT2009★ 2 cited
Configurations and parallelograms associated to centers of mass
F R Cohen, Yasuhiko Kamiyama
The purpose of this article is to 1. define M(t,k) the t-fold center of mass arrangement for k points in the plane, 2. give elementary properties of M(t,k) and 3. give consequences…