Kominek, Zygfryd; Matkowski, Janusz On stability of the homogeneity condition. (English) Zbl 0829.39011 Result. Math. 27, No. 3-4, 373-380 (1995). Reviewer: G.L.Forti (Milano) MSC: 39B72 39B52 PDF BibTeX XML Cite \textit{Z. Kominek} and \textit{J. Matkowski}, Result. Math. 27, No. 3--4, 373--380 (1995; Zbl 0829.39011) Full Text: DOI
Kominek, Z.; Matkowski, J. On the functional equations \(\phi (x)=\alpha \phi (\alpha x)+(1- \alpha)\phi (1-(1-\alpha)x)\). (English) Zbl 0608.39003 Bull. Math. Soc. Sci. Math. Répub. Soc. Roum., Nouv. Sér. 30(78), 327-334 (1986). Reviewer: G.L.Forti MSC: 39B99 PDF BibTeX XML Cite \textit{Z. Kominek} and \textit{J. Matkowski}, Bull. Math. Soc. Sci. Math. Répub. Soc. Roum., Nouv. Sér. 30(78), 327--334 (1986; Zbl 0608.39003)
Kominek, Z.; Matkowski, J. On the existence of a convex solution of the functional equation \(\varphi (x)=h(x,\varphi [f(x)]\)). (English) Zbl 0284.39009 Ann. Pol. Math. 30, 1-4 (1974). MSC: 39B05 PDF BibTeX XML Cite \textit{Z. Kominek} and \textit{J. Matkowski}, Ann. Pol. Math. 30, 1--4 (1974; Zbl 0284.39009) Full Text: DOI