Multiplicative convex functions have been mimicking the behavior of convex functions, but focusing on geometric average, instead of arithmetic average. In the present note we propose a different definition which focuses on the arithmetic operations taking part and we study the resulting functions. A characterization is also provided.

Contact details are reproduced from the original publication and may be historical.

Pablo Jiménez-Rodríguez

Dept. of Mathematical Sciences, Kent State University, Kent, OH 44242, U.S.A.

pjimene1@kent.edu

Maria E. Martínez-Gómez

Dep. de Análisis Matemático y Matemática Aplicada, Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain

mariae24@ucm.es

Gustavo A. Munoz-Fernández

Dep. de Análisis Matemático y Matemática Aplicada, Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain

gustavo_fernandez@mat.ucm.es

Juan B. Seoane-Sepúlveda

Dep. de Análisis Matemático y Matemática Aplicada, Facultad de Ciencias Matemáticas, Universidad Complutense de Madrid, 28040 Madrid, Spain

jseoane@ucm.es

P. Jiménez-Rodríguez, M. E. Martínez-Gómez, G. A. Munoz-Fernández, J. B. Seoane-Sepúlveda. “Describing Multiplicative Convex Functions.” Journal of Convex Analysis 27 (2020), No. 3, 935–942.