- Thread starter
- #1

A graph with edge chromatic number equal to Δ is known as a class 1 graph.

A graph with edge chromatic number equal to Δ+1 is known as a class 2 graph.

which one of them are bigger?(contains more graphs) and why?

- Thread starter abdolah
- Start date

- Thread starter
- #1

A graph with edge chromatic number equal to Δ is known as a class 1 graph.

A graph with edge chromatic number equal to Δ+1 is known as a class 2 graph.

which one of them are bigger?(contains more graphs) and why?