Networks/graph theory

A personal investigation of Conway's Rational Tangles. What were the interesting questions that needed to be asked, and where did they lead?

The tangles created by the twists and turns of the Conway rope trick are surprisingly symmetrical. Here's why!

The Four Colour Conjecture was first stated just over 150 years ago, and finally proved conclusively in 1976. It is an outstanding example of how old ideas can be combined with new discoveries. prove a mathematical theorem.

This article explains the concepts involved in scientific mathematical computing. It will be very useful and interesting to anyone interested in computer programming or mathematics.

This is the second of two articles and discusses problems relating to the curvature of space, shortest distances on surfaces, triangulations of surfaces and representation by graphs.