Mukherjee, R. N. Stability of Jensen’s equations in two normed spaces. (English) Zbl 1195.39008 Matematiche 57, No. 1, 119-129 (2002). Summary: Some stability questions of the Jensen’s functional inequality in the setting of 2-normed spaces are derived in this article. Few more results are given on approximate isometries. MSC: 39B82 Stability, separation, extension, and related topics for functional equations 39B52 Functional equations for functions with more general domains and/or ranges Keywords:Jensen’s Inequality; Functional equation; stability PDFBibTeX XMLCite \textit{R. N. Mukherjee}, Matematiche 57, No. 1, 119--129 (2002; Zbl 1195.39008)