Browsing Revista Colombiana de Matemáticas by Author "Finol, Carlos"
Now showing items 1-1 of 1
-
On a problem of krasnosel'skii and rutickii
Bárcenas, Diomedes; Finol, CarlosIn \cite[p. 30]{5}, M. A. Krasnosel'skii and Ya. B. Rutickii proposed a problem, which can be reformulated as follows. Let $f$ be an $N$-function such that $f(ts)\leq f(t)f(s)$, $s,t\geq 1$. Is there another $N$-function ...Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.