1 votes 1 votes Sahil Gupta asked Dec 16, 2014 Sahil Gupta 606 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.
3 votes 3 votes http://mathoverflow.net/questions/124116/maximum-number-of-edges-in-a-planar-graph suraj answered Dec 17, 2014 suraj comment Share Follow See all 0 reply Please log in or register to add a comment.