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Actions of Hopf-Ore Extensions of Group Algebras on Path Algebras of Quivers

Elise Askelsen, Ryan Kinser

Abstract

We classify the (filtered) Hopf actions of Hopf-Ore extensions of group algebras on path algebras of quivers, extending results in several other works from special cases to this general setting. Having done this for general Hopf-Ore extensions of group algebras, we demonstrate application by specializing our main result to certain Hopf-Ore extensions including some Noetherian prime Hopf algebras of GK-dimension one and two.

Actions of Hopf-Ore Extensions of Group Algebras on Path Algebras of Quivers

Abstract

We classify the (filtered) Hopf actions of Hopf-Ore extensions of group algebras on path algebras of quivers, extending results in several other works from special cases to this general setting. Having done this for general Hopf-Ore extensions of group algebras, we demonstrate application by specializing our main result to certain Hopf-Ore extensions including some Noetherian prime Hopf algebras of GK-dimension one and two.

Paper Structure

This paper contains 15 sections, 14 theorems, 46 equations.

Key Result

Theorem 1

The following data determines a (filtered) Hopf action of the Hopf-Ore extension $R=\Bbbk G(\chi, h, \delta)$ on $\Bbbk Q$, and all such actions are of this form:

Theorems & Definitions (29)

  • Theorem
  • Remark 2.1
  • Definition 2.2
  • Definition 2.3
  • Lemma 2.6
  • Proposition 2.7
  • proof
  • Lemma 2.12
  • Proposition 2.13
  • proof
  • ...and 19 more