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). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 39B05 General theory of functional equations and inequalities PDF BibTeX XML Cite \textit{Z. Kominek} and \textit{J. Matkowski}, Ann. Pol. Math. 30, 1--4 (1974; Zbl 0284.39009) Full Text: DOI OpenURL