## Reading in the Christmas holiday

Welcome to the annual Christmas overview of our latest articles!

## Interview with Marjan Sjerps: Mathematicians have a way of thinking that I really like

The Netherlands Forensic Institute (NFI) has a great deal of in-house knowledge in the field of forensic products, research and services, and provides many organizations in the field of security and law with reliable information from traces. Mathematical models are used within the NFI to understand the evidential value of the traces found.

## Percolation theory: about math and gossip

Percolation theory is a branch of mathematics at the interface between probability theory and graph theory. The term 'percolation' originates from materials science. A representative question is as follows. Suppose some liquid is poured over a porous material. Will the liquid be able to make its way from hole to hole and reach the bottom?

## Cycling to 57,912 National Monuments in the Netherlands

In March 2021 the largest roadmap instance of the traveling salesman problem ever was solved. This is a new record for the Travelling Salesman!

## Discussing with two great mathematicians

Before the summer break we interviewed together with Raf Bocklandt mathematicians David Aldous and László Lovász.

## A big breakthrough in the Euclidean Travelling Salesman Problem

Recently there has been a breakthrough in the field of algorithms for geometric network problems, concerning the complexity of the Euclidean Travelling Salesman Problem.

## A solution to a long standing conjecture

Recently a team of mathematicians has published an article announcing a solution to a long standing open problem in graph theory, the Erdős - Faber - Lovász (EFL) conjecture. This conjecture was formulated in 1972 by mathematicians Paul Erdős, Vance Faber and László Lovász.

## Gödel's incompleteness theorem in 15 minutes?

Is it possible to fully understand Gödel's incompleteness theorem in 15 minutes?

## Brouwer medal to David Aldous

On the 6th of April David Aldous received the Brouwer Medal 2020 for his contributions to probability theory.

## The Abel prize Laureates 2021 - László Lovász

On Wednesday the 17th of March the Abel prize was awarded to mathematicians László Lovász and Avi Wigderson