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On a functional equation related to the Ptolemaic inequality |
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| Authors: | C Alsina J L Garcia-Roig |
| Institution: | (1) Department of Mathematics and Statistics (E.T.S.A.B.), Universitat Politècnica de Catalunya, Diagonal 649, 08028 Barcelona, Spain |
| Abstract: | |
| Keywords: | Primary 39B20 |
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