Introduzione
Abstract
En
The first regular homotopy group of a finite connected directed graph G is isomorphic to a quotient group of suitable sequences of vertices in G.We show how to construct such a group and determine it for tournaments with few vertices.
The first regular homotopy group of a finite connected directed graph G is isomorphic to a quotient group of suitable sequences of vertices in G.We show how to construct such a group and determine it for tournaments with few vertices.
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