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Chromatic number of graphs of tangent closed balls

oct 6 10 at 15:20 RJK 11●2●3

 
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1
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A Counterexample to the HIrsch Conjecture

jun 15 10 at 18:02 Kristal Cantwell 4,021●1●5●17

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Graphs of Tangent Spheres

dec 7 09 at 19:09 Kristal Cantwell 4,021●1●5●17

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Origin of Fujimura set

feb 1 10 at 2:07 jc 3,915●9●23