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Filtering by: Creator Michael, Todd P. Remove constraint Creator: Michael, Todd P. Conference Name Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2017) Remove constraint Conference Name: Approximation, Randomization, and Combinatorial Optimization. Algorithms and Techniques (APPROX/RANDOM 2017) Degree Level Doctoral Remove constraint Degree Level: Doctoral

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  • Approximation Schemes in Planar Graphs

    Creator:
    Zheng, Baigong
    Abstract:
    There are growing interests in designing polynomial-time approximation schemes (PTAS) for optimization problems in planar graphs. Many NP-hard problems are shown to admit PTAS in planar graphs in the last decade, including Steiner tree, Steiner forest, two- edge-connected subgraphs and so on. We follow this research line and study several...
    Resource Type:
    Dissertation
    Full Text:
    time. Papadimitriou and Yannakakis [105] proved that there are problems that do not have PTAS unless P