Title of article :
A note on a paper of I.D. Arand̄elović on asymptotic contractions
Author/Authors :
Jachymski، نويسنده , , Jacek، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2009
Abstract :
W.A. Kirk [W.A. Kirk, Fixed points of asymptotic contractions, J. Math. Anal. Appl. 277 (2003) 645–650] defined the notion of an asymptotic contraction on a metric space and using ultrapower techniques he gave a nonconstructive proof of an asymptotic version of the Boyd–Wong fixed point theorem. Subsequently, I.D. Arand̄elović [I.D. Arand̄elović, On a fixed point theorem of Kirk, J. Math. Anal. Appl. 301 (2005) 384–385] established somewhat more general version of Kirkʹs result and he gave an elementary proof of it. However, our purpose is to show that there is an error in this proof and, moreover, Arand̄elovićʹs theorem is false. We also explain how to correct this result.
Keywords :
Asymptotic contractions , Fixed point , Complete metric space , Asymptotic fixed point theory
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications