Definition
A quiver Γ consists of:
- The set V of vertices of Γ
- The set E of edges of Γ
- Two functions: s:E→V giving the start or source of the edge, and another function, t:E→V giving the target of the edge.
This definition is identical to that of a multidigraph.
A morphism of quivers is defined as follows. If and are two quivers, then a morphism of quivers consist of two functions and such that following diagrams commute:
and
Read more about this topic: Quiver (mathematics)
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