圖論

graph theory (math.)

diagram / picture / drawing / chart / map / CL:張|张[zhang1] / to plan / to scheme / to attempt / to pursue / to seek

abbr. for 論語|论语[Lun2 yu3], The Analects (of Confucius)

opinion / view / theory / doctrine / to discuss / to talk about / to regard / to consider / per / by the (kilometer, hour etc)