On the minimal displacement of points under mappings

A. I. Ban and S. G. Gal

Address.  Department of Mathematics, University of Oradea,  str. Armatei Rom\^{a}ne 5, 3700 Oradea, Romania

E-mail: aiban@math.uoradea.ro
             galso@math.uoradea.ro

Abstract. New contributions concerning the minimal displacement of points under mappings
                (defect of fixed point) are obtained.

AMSclassification. 47H10, 49J40, 49J50

Keywords. Fixed point, minimal displacement, defect of fixed point, best almost-fixed point.