About this article
Published Online: Nov 24, 2023
Page range: 55 - 64
Received: Jan 07, 2022
Accepted: Jan 10, 2022
DOI: https://doi.org/10.2478/gm-2022-0004
Keywords
© 2022 Alexandru Orzan, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
The aim of this paper is to generalize the convexity preserving properties of sets by direct and inverse images initially stated for set-valued ratios of affine functions to a broader class of fractional type set-valued functions which strictly includes the first one.