Titlebook: Health Services and Health Hazards: The Employee’s Need to Know; The Employee‘s Need Richard H. Egdahl,Diana Chapman Walsh Book 1978 Sprin

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H. Cranston Lawtonat the . problem is polynomial-time solvable for AT-free graphs. We also prove that the . for AT-free graphs can be approximated within approximation ratio of 3 in linear-time. Our results answer the open questions posed by Galby et al. in their recent paper.

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Richard H. Egdahl M.D., Ph.D.,Diana Chapman Walsh M.S.and .-free graphs also admits a linear .-binding function. In addition, we give tight chromatic bounds for .-free graphs and .-free graphs, and it can be seen that the latter is an improvement of the existing bound given by A. P. Bharathi and S. A. Choudum [.].