Commuting contractive families

Luka Milićević

Fundamenta Mathematicae (2015)

  • Volume: 231, Issue: 3, page 225-272
  • ISSN: 0016-2736

Abstract

top
A family f₁,..., fₙ of operators on a complete metric space X is called contractive if there exists a positive λ < 1 such that for any x,y in X we have d ( f i ( x ) , f i ( y ) ) λ d ( x , y ) for some i. Austin conjectured that any commuting contractive family of operators has a common fixed point, and he proved this for the case of two operators. We show that Austin’s conjecture is true for three operators, provided that λ is sufficiently small.

How to cite

top

Luka Milićević. "Commuting contractive families." Fundamenta Mathematicae 231.3 (2015): 225-272. <http://eudml.org/doc/282968>.

@article{LukaMilićević2015,
abstract = {A family f₁,..., fₙ of operators on a complete metric space X is called contractive if there exists a positive λ < 1 such that for any x,y in X we have $d(f_i(x),f_i(y)) ≤ λ d(x,y)$ for some i. Austin conjectured that any commuting contractive family of operators has a common fixed point, and he proved this for the case of two operators. We show that Austin’s conjecture is true for three operators, provided that λ is sufficiently small.},
author = {Luka Milićević},
journal = {Fundamenta Mathematicae},
keywords = {contraction mappings; complete metric spaces},
language = {eng},
number = {3},
pages = {225-272},
title = {Commuting contractive families},
url = {http://eudml.org/doc/282968},
volume = {231},
year = {2015},
}

TY - JOUR
AU - Luka Milićević
TI - Commuting contractive families
JO - Fundamenta Mathematicae
PY - 2015
VL - 231
IS - 3
SP - 225
EP - 272
AB - A family f₁,..., fₙ of operators on a complete metric space X is called contractive if there exists a positive λ < 1 such that for any x,y in X we have $d(f_i(x),f_i(y)) ≤ λ d(x,y)$ for some i. Austin conjectured that any commuting contractive family of operators has a common fixed point, and he proved this for the case of two operators. We show that Austin’s conjecture is true for three operators, provided that λ is sufficiently small.
LA - eng
KW - contraction mappings; complete metric spaces
UR - http://eudml.org/doc/282968
ER -

NotesEmbed ?

top

You must be logged in to post comments.

To embed these notes on your page include the following JavaScript code on your page where you want the notes to appear.

Only the controls for the widget will be shown in your chosen language. Notes will be shown in their authored language.

Tells the widget how many notes to show per page. You can cycle through additional notes using the next and previous controls.

    
                

Note: Best practice suggests putting the JavaScript code just before the closing </body> tag.