In this paper we will describe a new class of coloring
problems, arising from military frequency assignment, where we want to
minimize the number of distinct n-uples of colors used to color a given
set of n-complete-subgraphs of a graph.
We will propose two relaxations based on
Semi-Definite Programming models for graph and hypergraph
coloring, to approximate those (generally) NP-hard problems, as well as
a generalization of the works of Karger et al. for hypergraph coloring,
to find good feasible solutions with a probabilistic
approach.