https://www.xomnia.com/post/graph-theory-and-its-uses-with-examples-of-real-life-problems/
Numberphile: A breakthrough in graph theory https://www.youtube.com/watch?v=Tnu_Ws7Llo4
And visit her website: http://www.ericaklarreich.com/
Read Erica Klarreich’s Quanta article on this subject: https://www.quantamagazine.org/mathematician-disproves-hedetniemis-graph-theory-conjecture-20190617/
And visit her website: http://www.ericaklarreich.com/
Yaroslav Shitov’s breakthrough paper: https://arxiv.org/abs/1905.02167
More graph theory on Numberphile
Four Color Maps: https://youtu.be/NgbK43jB4rQ
An Unsolved Problem: https://youtu.be/niaeV_NHh-o
Planar Graphs: https://youtu.be/xBkTIp6ajAg
Perfect Graphs: https://youtu.be/C4Zr4cOVm9g
Friends and Strangers: https://youtu.be/xdiL-ADRTxQ
River Crossings: https://youtu.be/ZCVAGb1ee8A