Journal of Mathematical Inequalities · Volume 12, Issue 4 An inequality for distances among five points and distance preserving mappings 12-90 Pages 1189-1199 DOI 10.7153/jmi-2018-12-90 Downloads Short PDF Full PDF PNG Authors Soon-Mo Jung Doyun Nam Keywords inequalities Aleksandrov-Rassias problem distance linear isometry point Subject classes 51M16 51K99 51K05 46C99