A note on a paper of ID Arandelovic on asymptotic contractions

被引:8
作者
Jachymski, Jacek [1 ]
机构
[1] Tech Univ Lodz, Inst Math, PL-93005 Lodz, Poland
关键词
Asymptotic fixed point theory; Asymptotic contractions; Fixed point; Complete metric space; FIXED-POINT THEOREM; MEIR-KEELER TYPE; METRIC-SPACES; END-POINTS;
D O I
10.1016/j.jmaa.2009.05.012
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
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 oil a metric space and using ultrapower techniques lie gave a nonconstructive proof of an asymptotic version of the Boyd-Wong fixed point theorem. Subsequently, I.D. Arandelovic [I.D. Arandelovic, On a fixed point theorem of Kirk, J. Math. Anal. Appl. 301 (2005) 384-385] established somewhat more general version of Kirk's result and lie gave an elementary proof of it, However, our purpose is to show that there is an error in this proof and, moreover, Arandelovic's theorem is false. We also explain how to correct this result. (C) 2009 Elsevier Inc. All rights reserved.
引用
收藏
页码:491 / 492
页数:2
相关论文
共 9 条
[1]   On a fixed point theorem of Kirk [J].
Arandelovic, ID .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2005, 301 (02) :384-385
[2]   A rate of convergence for asymptotic contractions [J].
Briseid, E. M. .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2007, 330 (01) :364-376
[3]   A quantitative version of Kirk's fixed point theorem for asymptotic contractions [J].
Gerhardy, P .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2006, 316 (01) :339-345
[4]   On Kirk's asymptotic contractions [J].
Jachymski, J ;
Józwik, I .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2004, 300 (01) :147-159
[5]   Fixed points of asymptotic contractions [J].
Kirk, WA .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2003, 277 (02) :645-650
[7]   A definitive result on asymptotic contractions [J].
Suzuki, Tomonari .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2007, 335 (01) :707-715
[8]   Endpoints of set-valued dynamical systems of asymptotic contractions of Meir-Keeler type and strict contractions in uniform spaces [J].
Wlodarczy, Kazimierz ;
Plebaniak, Robert ;
Obczynski, Cezary .
NONLINEAR ANALYSIS-THEORY METHODS & APPLICATIONS, 2007, 67 (06) :1668-1679
[9]   Existence and uniqueness of endpoints of closed set-valued asymptotic contractions in metric spaces [J].
Wlodarczyk, K. ;
Klim, D. ;
Plebaniak, R. .
JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS, 2007, 328 (01) :46-57