Title:
Approximation Schemes for Planar Graphs: A Survey of Methods
Approximation Schemes for Planar Graphs: A Survey of Methods
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Author(s)
Klein, Philip
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Abstract
In addressing an NP-hard problem in combinatorial optimization, one way to cope is to use an approximation scheme, an algorithm that, for any given ϵ>0, produces a solution whose value is within a 1+ϵ factor of optimal. For many problems on graphs, obtaining such accurate approximations is NP-hard if the input is allowed to be any graph but is tractable if the input graph is required to be planar.
Research on polynomial-time approximation schemes for optimization problems in planar graphs goes back to the pioneering work of Lipton and Tarjan (1977) and Baker (1983). Since then, however, the scope of problems amenable to approximation has broadened considerably. In this talk I will outline some of the approaches used, especially those that have led to recent results.
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Date Issued
2017-03-27
Extent
56:45 minutes
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Moving Image
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Lecture