Problems and results in combinatorial analysis and graph theory
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Discrete Mathematics - In memory of Tory Parsons
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Computational Complexity
Maximum induced matchings in graphs
Discrete Mathematics
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Journal of Computer and System Sciences
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Generalizing the induced matching by edge capacity constraints
Discrete Optimization
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Theoretical Computer Science
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Theoretical Computer Science
Maximum matching in multi-interface networks
Theoretical Computer Science
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This paper studies the complexity of the Maximum Induced Matching problem (MIM) in regular graphs and trees. We show that the largest induced matchings in a regular graph of degree d can be approximated with a performance ratio less than d. However MIM is NP-hard to approximate within some constant c 1 even if the input is restricted to various classes of bounded degree and regular graphs. Finally we describe a simple algorithm providing a linear time optimal solution to MIM if the input graph is a tree.