Perfect graphs - PowerPoint PPT Presentation

Graph Isomorphism

Graph Isomorphism. Network Algorithms 2005. Graph Isomorphism. Two graphs G=(V,E) and H=(W,F) are isomorphic if there is a bijective function f: V ® W such that for all v , w in V: { v,w } Î E Û {f( v ),f( w )} Î F . Variant for labeled graphs.

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Perfect Graphs

Perfect Graphs. Lecture 23: Apr 17. Hard Optimization Problems. Independent set Clique Colouring Clique cover. coding. scheduling. Hard to approximate within a factor of. Graph Product. Given G1=(V1,E1) and G2=(V2,E2), their product G1xG2 is the graph

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550 views • 20 slides

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