Fixed-point-like theorems on subspaces

tigated the conditions under which the nonexpansive mapping of a closed, bounded and convex subset of a Banach space has a fixed point.. The Kirk’s result is fairly

In terminology of [16] Theorem 4.3 implies that the alternation-depth hierarchy of fixed-point expressions collapses for lattices D with co-continuous "U" and dis-

L’accès aux archives de la revue « Rendiconti del Seminario Matematico della Università di Padova » ( http://rendiconti.math.unipd.it/ ) implique l’accord avec les

L’accès aux archives de la revue « Rendiconti del Seminario Matematico della Università di Padova » ( http://rendiconti.math.unipd.it/ ) implique l’accord avec les

L’accès aux archives de la revue « Rendiconti del Seminario Matematico della Università di Padova » ( http://rendiconti.math.unipd.it/ ) implique l’accord avec les

L’accès aux archives de la revue « Rendiconti del Seminario Matematico della Università di Padova » ( http://rendiconti.math.unipd.it/ ) implique l’accord avec les

Recently, Huang and Zhang [4] introduced the concept of cone metric spaces which generalized the concept of the metric spaces, replacing the set of real numbers by an ordered

(Schroder [62]). In Chapter III we discuss the results related to commuting functions and common fixed points. We also present some new results on commuting