Lifted, projected and subgraph-induced inequalities for the representatives k-fold coloring polytope
نویسندگان
چکیده
منابع مشابه
On the representatives k-fold coloring polytope
A k-fold x-coloring of a graph G is an assignment of (at least) k distinct colors from the set {1, 2, . . . , x} to each vertex such that any two adjacent vertices are assigned disjoint sets of colors. The k-th chromatic number of G, denoted by χk(G), is the smallest x such that G admits a k-fold x-coloring. We present an ILP formulation to determine χk(G) and study the facial structure of the ...
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ژورنال
عنوان ژورنال: Discrete Optimization
سال: 2016
ISSN: 1572-5286
DOI: 10.1016/j.disopt.2016.06.003