**INTRODUCTION**

The series opener between England and Pakistan is now into its third day of play. This post looks at developments in that match so far. 940 more words

The series opener between England and Pakistan is now into its third day of play. This post looks at developments in that match so far. 940 more words

In this post, I will talk about an interesting and simple technique one can use to create graphs with many edges but with a forbidden subgraph. 670 more words

This is the third post in a series about an exact formula for the Fibonacci numbers, , which are defined by the initial values and the recurrence relation . 949 more words

[**microreview**]

We prove that a subgroup has the same number of left and right cosets.

https://doi.org/10.31219/osf.io/t4snh

**Open Mathematics Collaboration**

*Would you like to…* 20 more words

The algebraic connectivity of a graph is its smallest nontrivial Laplacian eigenvalue. Equivalently, it is the minimum of edge sums over all functions normalized by and . 550 more words