𝔖 Bobbio Scriptorium
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What is a free double category like?

✍ Scribed by Robert Dawson; Robert Paré

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
151 KB
Volume
168
Category
Article
ISSN
0022-4049

No coin nor oath required. For personal study only.

✦ Synopsis

We give a geometric description of the free double category generated by a double re exive graph. Its cells are homotopy classes of colourings of certain rectangular complexes in the plane. A number of examples illustrate the wide variety of combinatorial properties of the plane this touches.

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