We introduce a construction called the cone over a graph. It is a natural generalisation of Mycielski's construction. We give a formula for the fractional chromatic numbers of all cones over graphs, which generalizes that given in  for Mycielski's construction.
- Fractional chromatic number
- Mycielski's construction
ASJC Scopus subject areas
- Geometry and Topology
- Discrete Mathematics and Combinatorics