This guarantees that every graph has an even subgraph that’s at least half as big as the original. But how big an odd subgraph can be has been an open research question in graph theory for over 60 ...

Why Learn Graph Theory; What Is a Graph; Types of Graph; Then, skip ahead to article 7, "Implementations of Graphs", then come back here and implement a directed and undirected graph. Then read ...

A line connects vertices that appear in the same row, column, or subgrid. This translation allowed the mathematicians to use mathematical tools developed in graph theory to understand sudoku.

Graph isomorphism is a subset of string isomorphism; in fact, string isomorphism is the subject of Babai’s paper, although it mainly discusses graphs. While there had been solutions for various ...

Graph theory is the study of networks and connections between variables. In the real world it has uses from powering search engine algorithms to fixing airline scheduling. Now, scientists are ...