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arXiv · 2111.02635

The 3x+1 Problem: An Overview

Jeffrey C. Lagarias
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Abstract

This paper is an overview and survey of work on the 3x+1 problem, also called the Collatz problem, and generalizations of it. It gives a history of the problem. It addresses two questions: (1) What can mathematics currently say about this problem? (as of 2010). (2) How can this problem be hard, when it is so easy to state?

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Jeffrey C. Lagarias. 2021-11-04. The 3x+1 Problem: An Overview. https://arxiv.org/abs/2111.02635

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