An Elementary Proof for the Decomposition Theorem of Wright Convex Functions
| 09 jul 2020
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Publicado en línea: 09 jul 2020
Páginas: 142 - 150
Recibido: 31 dic 2019
Aceptado: 03 jun 2020
DOI: https://doi.org/10.2478/amsil-2020-0010
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© 2020 Zsolt Páles, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
The main goal of this paper is to give a completely elementary proof for the decomposition theorem of Wright convex functions which was discovered by C. T. Ng in 1987. In the proof, we do not use transfinite tools, i.e., variants of Rodé’s theorem, or de Bruijn’s theorem related to functions with continuous differences.