Étale Groupoids and Steinberg Algebras a Concise Introduction

@article{Clark2020taleGA,
  title={{\'E}tale Groupoids and Steinberg Algebras a Concise Introduction},
  author={Lisa Orloff Clark and Roozbeh Hazrat},
  journal={arXiv: Rings and Algebras},
  year={2020},
  pages={73-101}
}
We give a concise introduction to (discrete) algebras arising from etale groupoids (aka Steinberg algebras) and describe their close relationship with groupoid \(C^*\)-algebras. Their connection to partial group rings via inverse semigroups is also explored. 
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