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Questions
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When does graph minor containment imply subgraph containment?

aug 1 10 at 15:00 Robin Kothari 918●4●11

 
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Ref request: A graph G contains H as a minor iff it contains one of finitely many graphs as a topological minor

aug 30 10 at 6:32 Nathann Cohen 731●3●8

 
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Can you maximize the spectral norm of a matrix in a semidefinite program?

oct 24 at 2:01 Robert Israel 10.8k●8●22