atlas

Definition

An atlas $\mathcal{A}$ on topological manifold $M$ is a collection of charts whose domains cover $M$.

References

1. http://staff.ustc.edu.cn/~wangzuoq/Courses/18F-Manifolds/Notes/Lec02.pdf
2. J. M. Lee, Introduction to smooth manifolds, Second edition. in Graduate texts in mathematics, no. 218. New York Heidelberg Dordrecht London: Springer, 2013, p. 12.