P Leonetti - Results in Mathematics, 2023 - Springer
Abstract Let α 1,…, α m be two or more positive reals with sum 1, let C⊆ R k be an open convex set, and f: C→ R k be a continuous injection with convex image. For each nonempty …
In recent papers, the convexity of quasiarithmetic means was characterized under twice differentiability assumptions. One of the main goals of this paper is to show that the convexity …
We show that bisymmetry, which is an algebraic property, has a regularity improving feature. More precisely, we prove that every bisymmetric, partially strictly monotonic, reflexive and …
In this paper we show some remarkable consequences of the method which proves that every bisymmetric, symmetric, reflexive, strictly monotonic binary map on a proper interval is …