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Free groupoids, trees, and free groups

✍ Scribed by J. Duskin

Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
831 KB
Volume
68
Category
Article
ISSN
0022-4049

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πŸ“œ SIMILAR VOLUMES

A Note on Free Topological Groupoids
A Note on Free Topological Groupoids
✍ J. P. L. Hardy; Sidney A. Morris πŸ“‚ Article πŸ“… 1977 πŸ› John Wiley and Sons 🌐 English βš– 284 KB

## Introduction. In [ll] MARKOV introduced the concept of a free topological group F(X) on a topological space X and showed that, if X is any completely regular HAUSDORFF space, then F ( X ) exists, is HAUSDORFF, and the canonical (1964).

Circle Maps, Measured Laminations, and F
Circle Maps, Measured Laminations, and Free Group Actions on IR-trees
✍ Mariusz UrbaΕ„ski; Luca Zamboni πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 482 KB

## Abstract This paper explores the connection between homeomorphisms of the unit circle, codimension‐1 measured laminations on closed surfaces, and free actions of surface groups on IR‐trees.

The Word Problem for Free Partially Comm
The Word Problem for Free Partially Commutative, Partially Associative Groupoids
✍ David P. Jacobs; Sekhar V. Muddana πŸ“‚ Article πŸ“… 1993 πŸ› Elsevier Science 🌐 English βš– 161 KB

We examine the idea of a free partially commutative, partially associative groupoid, and show that there is a linear-time algorithm for the word problem. Our work is an attempt to see how word problem results by Book, Liu, and Wrathall for monoids and groups might be extended to groupoids. Key word