The Memoirs of the Weeks of Mathematics were first published in 2009, as a part of the activities of the Weeks of Mathematics. This first number compiled several works of diverse nature that corresponded to talks delivered during the first four Weeks of Mathematics. One year later, the release of “Memorias de la 5GSNM” confirmed that the works presented in the Weeks of Mathematics deserved to be published and spread through the Mexican mathematical community. Hence, the series “Matemáticas y sus aplicaciones” was born in 2011. Since then, this publication has been become a strong means of dissemination of the works of both faculty and students that take part in this yearly mathematical activity.

- Submissions of research and outreach chapters are welcomed. The latter include surveys, and in any case should offer an original approach to a subject.
- Manuscripts should be formatted in the style of the template, and should be between 15 and 25 pages long.
- Manuscript must be written either in English or Spanish.
- Manuscripts must be sent to fmacias@fcfm.buap.mx
**Submission deadline:**January the 6^{th}, 2020.- Late submissions will be considered for the next issue (to be published in 2021).

All submissions will be peer-reviewed by two referees.

**Publication date:** December 2020.