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math.RT2016
Generating invariant rings of quivers in arbitrary characteristic
Harm Derksen, Visu Makam
It is well known that the ring of polynomial invariants of a reductive group is finitely generated. However, it is difficult to give strong upper bounds on the degrees of the gener…
math.RT2016
Degree bounds for semi-invariant rings of quivers
Harm Derksen, Visu Makam
We use recent results on matrix semi-invariants to give degree bounds on generators for the ring of semi-invariants for quivers with no oriented cycles.