Thestudyofhyperbolicgraphsisaninterestingtopicsincethehyperbolicityofageodesicmetricspaceisequivalenttothehyperbolicityofagraphrelatedtoit.Themainresultinthispaperisaverysimplecharacterizationofthehyperbolicityofalargeclassofperiodicplanargraphs.
数学学报:英文版
2014年1期