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This article records basic topological, as well as homological properties of the space of homomorphisms Hom(Ï€, G) where Ï€ is a finitely generated discrete group, and G is a Lie group, possiblyâ€¦ (More)

- Abbas Bahri, Martin Bendersky, Frederick R. Cohen, Steven Gitler
- Proceedings of the National Academy of Sciencesâ€¦
- 2009

This article gives a natural decomposition of the suspension of a generalized moment-angle complex or partial product space which arises as the polyhedral product functor described below. Theâ€¦ (More)

This article gives a natural decomposition of the suspension of generalized moment-angle complexes or partial product spaces which arise as polyhedral product functors described below. In the specialâ€¦ (More)

The Â«-skeleton of a (2Â« + 2)-simplex does not embed in R " . This well-known result is due (independently) to van Kampen, 1932, and Flores, 1933, who proved the case p = 2 of the following: Theorem.â€¦ (More)

A statistical framework is introduced for a broad class of problems involving synchronization or registration of data across a sensor network in the presence of noise. This framework enables anâ€¦ (More)

- A. Adem, Frederick R. Cohen, E. TORRES GIESE

Let Î“ q denote the q-th stage of the descending central series of the free group on n generators F n. For each q â‰¥ 2 and every topological group G, a simplicial space B * (q, G) is constructed whereâ€¦ (More)

The cohomology groups of the configuration space of ordered kâ€“tuples of distinct points in Euclidean space give natural modules over the group ring of the symmetric group. On the other hand, theseâ€¦ (More)

The main results of this article are certain connections between braid groups and the homotopy groups of the 2-sphere. The connections are given in terms of Brunnian braids over the disk and over theâ€¦ (More)

- Frederick R. Cohen, Sebastian Lazareno, Nigel J. M. Birdsall
- British journal of pharmacology
- 1996

1. Experiments with adenosine deaminase suggest that adenosine is present in membrane preparations from CHO cells bearing adenosine A1 receptors. 2. Pretreatment of the membranes (ca 0.6 mg proteinâ€¦ (More)

- Frederick R. Cohen, TOSHITAKE KOHNO, M. A. XICOTÃ‰NCATL

The purpose of this article is to analyze several Lie algebras associated to " orbit configuration spaces " obtained from a group G acting freely, and properly discontinuously on the upper 1/2-planeâ€¦ (More)