Top Tweets for #ChromaticNumber
7/7 Paper (18 pages, PDF and LaTeX), certificates, both checkers and tests:
https://t.co/jljPCoNJfn
PDF: https://t.co/NdFj44Cut0
#HadwigerNelson #ChromaticNumber #Combinatorics #DiscreteGeometry #Mathematics
#ChromaticNumber NP Hard
Computing the chromatic number of a graph is NP hard. It is at most 4 for planar graphs. https://t.co/5RDl56LH0Y
#Mathematics #highlycited Article by Kinkar Chandra Das and Yilun Shang
Title: Some Extremal Graphs with Respect to Sombor Index
Details: https://t.co/gqTwCRPxaK
Keywords: #graph; #SomborIndex; #ChromaticNumber; #CliqueNumber
@MDPIOpenAccess @ComSciMath_Mdpi
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