๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

How to Draw a Straight Line


Book ID
109396993
Publisher
Nature Publishing Group
Year
1877
Tongue
English
Weight
409 KB
Volume
16
Category
Article
ISSN
0028-0836

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๐Ÿ“œ SIMILAR VOLUMES


How to Draw a Straight Line1
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A map is at the same time a group. To represent a map (that is, a graph drawn on the sphere or on another surface) we usually use a pair of permutations on the set of the 'ends' of edges. These permutations generate a group which we call a cartographic group. The main motivation for the study of the