... Therefore, Amis infinite dimensional.Hindawi Publishing CorporationFixed Point Theory and ApplicationsVolume 2010, Article ID 268450, 9 pagesdoi:10 .115 5/2010/268450 Research Article On the ... C∗-algebras,” Journal ofMathematical Analysis and Applications, vol. 374, pp. 22–28, 2 011. 4 Fixed Point Theory and ApplicationsBy using the above theorem, we obtain the following result.Theorem 1.5. Let ... |z|≤1}denote the fields of complex, real numbers, the set of natural numbers, the unit circle, the open unit disc, and the closed unit disc, respectively. The symbol F denotes a field that canbe either...