... authors thank one of the reviewers for suggesting the inclusion of a concrete example towhich Theorem 3.3 applies. They acknowledge the support of the Spanish Ministry of Science and Innovation, ... T06 Fixed Point Theory and ApplicationsThen, they proved the following improvement of the celebrated Rakotch fixed pointtheorem see 28.Theorem 3.1 Lafit and Al-Mezel 7,Theorem2.3. Let ... basicideas in the area of asymmetric topology,” in Handbook of the History of General Topology, Vol. 3,vol.3 of History of Topology, pp. 853–968, Kluwer Academic Publishers, Dordrecht, The Netherlands,...