Graph labeling is a central topic in combinatorial optimisation that involves assigning numerical or categorical labels to vertices or edges of a graph subject to specific constraints. This framework ...

This research topic explores the theoretical foundations and practical applications of graph labeling and coloring problems, both of which are central to modern combinatorics and computer science.

This example shows how to label subgroups in a vertical bar chart that is generated by the GCHART procedure. Each bar represents total orders for a city and is subgrouped by the type of order. The ...