Journal of Mathematical Inequalities · Volume 15, Issue 1 On an equation characterizing multi-Jensen-quartic mappings and its stability 15-25 Pages 333-347 DOI 10.7153/jmi-2021-15-25 Downloads Short PDF Full PDF PNG Authors Choonkil Park Abasalt Bodaghi Tianzhou Xu Keywords Banach space multi-Jensen mapping multi-Jensen-quartic mapping multi-quartic mapping Hyers-Ulam stability hyperstability Subject classes 39B52 39B72 39B82