Section 78.1 (0438): Introduction

78.1 Introduction

This chapter is devoted to generalities concerning groupoids in algebraic spaces. We recommend reading the beautiful paper [K-M] by Keel and Mori.

A lot of what we say here is a repeat of what we said in the chapter on groupoid schemes, see Groupoids, Section 39.1. The discussion of quotient stacks is new here.

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The Stacks project

78.1 Introduction

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