New Hereditary And Mutation-Invariant Properties Arising from Forks
Tucker Ervin
Source abstract
A hereditary property of quivers is a property preserved by restriction to any full subquiver. Similarly, a mutation-invariant property of quivers is a property preserved by mutation. Using forks, a class of quivers developed by M. Warkentin, we introduce a new hereditary and mutation-invariant property. We prove that a quiver being mutation-equivalent to a finite number of non-forks --- defined as having a finite forkless part --- is this new property, using only elementary methods. Additionally, we show that a more general property --- having a finite pre-forkless part --- is also a new hereditary and mutation-invariant property in much the same manner.
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