Mathematical Inequalities & Applications · Volume 13, Issue 3

Functional characterization of a sharpening of the triangle inequality

13-39 Pages 571-578 DOI 10.7153/mia-13-39

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Authors

Włodzimierz Fechner

Keywords

norm inequality triangle inequality functional equation functional inequality Hyers-Ulam stability

Subject classes

39B62 39B82 46B20 46B99