## August 24, 2022

### Joint Mathematics Meetings 2023

#### Posted by John Baez

This is the biggest annual meeting of mathematicians:

- Joint Mathematical Meetings 2023, Wednesday January 4 - Saturday January 7, 2023, John B. Hynes Veterans Memorial Convention Center, Boston Marriott Hotel, and Boston Sheraton Hotel, Boston, Massachusetts.

As part of this huge meeting, the American Mathematical Society is having a special session on Applied Category Theory on Thursday January 5th.

I hear there will be talks by Eugenia Cheng and Olivia Caramello!

## August 1, 2022

### Timing, Span(Graph) and Cospan(Graph)

#### Posted by Emily Riehl

*Guest post by Siddharth Bhat and Pim de Haan. Many thanks to Mario Román for proofreading this blogpost.*

This paper explores modelling automata using the Span/Cospan framework by Sabadini and Walters. The aim of this blogpost is to introduce the key constructions that are used in this paper, and to explain how these categorical constructions allow us to talking about modelling automata and timing in these automata.