# L-groups and the Langlands program for covering groups: a historical introduction

## TL;DR

This paper provides a historical overview of the development of the Langlands program for covering groups, highlighting key structural, representation-theoretic, and automorphic form aspects.

## Contribution

It offers a subjective historical introduction to nonlinear covering groups, setting context for subsequent research in the volume.

## Key findings

- Historical development of covering groups
- Connections to automorphic forms
- Foundation for future research

## Abstract

In this joint introduction to an Asterisque volume, we give a short discussion of the historical developments in the study of nonlinear covering groups, touching on their structure theory, representation theory and the theory of automorphic forms. This serves as a historical motivation and sets the scene for the papers in the volume. Our discussion is necessarily subjective and will undoubtedly leave out the contributions of many authors, to whom we apologize in earnest.