The well-covered partitioned probe split problem is polynomial
Abstract
A graph G = (V,E) is well-covered if each maximal independent set of G is maximum. A graph G = (V,E) is split if there is a partition V = (S,K), where S is an independent set and K is a clique. A well-covered split graph is at a same time well-covered and split. Given a class C of graphs, a graph G = (V,E) is C−probe if there is a partition for V = (N,P) into probes P and non-probes N, where N is an independent set and new edges may be added between non-probes such that the resulting graph is in the graph class C. We say that (N,P) is a C probe partition for G. The C−PARTITIONED PROBE problem consists of an input graph G and a probe partition V = (N,P) and the question: Is (N,P) a C−probe partition? In this paper we consider C the class of well-covered split graphs, and we prove that C−PARTITIONED PROBE problem belong to the polynomial problem class P.
References
Chvátal, V. and Slater, P. J. (1993). A note on well-covered graphs. In John Gimbel, J. W. K. and Quintas, L. V., editors, Quo Vadis, Graph Theory?, volume 55 of Annals of Discrete Mathematics, pages 179 – 181. Elsevier.
Feder, T., Hell, P., Klein, S., and Motwani, R. (1999). Complexity of graph partition problems. In Proceedings of the Thirty-first Annual ACM Symposium on Theory of Computing, STOC ’99, pages 464 – 472. ACM, New York, NY, USA.
Golumbic, M., Kaplan, H., and Shamir, R. (1995). Graph sandwich problems. volume 19, pages 449 – 473.
Golumbic, M. C. (1980). Algorithmic graph theory and perfect graphs. In Academic Press, volume 1, pages 149 – 156. Elsevier Science.
