Results 21 to 30 of about 2,901,259 (273)

Common fixed points of compatible mappings

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In this paper, we present a common fixed point theorem for compatible mappings, which extends the results of Ding, Diviccaro-Sessa and the third author.
S. M. Kang, Y. J. Cho, G. Jungck
doaj   +1 more source

Common fixed points for self-mappings on partial metric spaces [PDF]

open access: yes, 2012
In this paper, we prove some results of a common fixed point for two self-mappings on partial metric spaces. Our results generalize some interesting results of Ilic et al. (Appl. Math. Lett. 24:1326-1330, 2011). We conclude with a result of the existence
DI BARI, Cristina   +3 more
core   +2 more sources

Fixed points and common points for fundamentally nonexpansive mappings on banach spaces [PDF]

open access: yesJournal of Hyperstructures, 2015
In this paper, we present some fixed point theorems for fundamentally nonexpansive mappings in Banach spaces and give one common fixed point theorem for a commutative family of demiclosed fundamentally nonexpansive mappings on a nonempty weakly compact ...
Moohammad Moosaei
doaj   +1 more source

Boxes, extended boxes, and sets of positive upper density in the Euclidean space [PDF]

open access: yes, 2020
We prove that sets with positive upper Banach density in sufficiently large dimensions contain congruent copies of all sufficiently large dilates of three specific higher-dimensional patterns. These patterns are: $2^n$ vertices of a fixed $n$-dimensional
Durcik, Polona, Kovač, Vjekoslav
core   +2 more sources

A Note on Commuting Diffeomorphisms on Surfaces [PDF]

open access: yes, 2005
Let S be a closed surface with nonzero Euler characteristic. We prove the existence of an open neighborhood V of the identity map of S in the C^1-topology with the following property: if G is an abelian subgroup of Diff^1(S) generated by any family of ...
Bonatti C   +7 more
core   +1 more source

On common fixed points, periodic points, and recurrent points of continuous functions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
It is known that two commuting continuous functions on an interval need not have a common fixed point. However, it is not known if such two functions have a common periodic point.
Aliasghar Alikhani-Koopaei
doaj   +1 more source

The Strength of Direct Ties: Evidence from the Electronic Game Industry [PDF]

open access: yes, 2010
We analyze the economic effects of a developer’s connectedness in the electronic game industry. Knowledge spillovers between developers should be of special relevance in this knowledge-based industry. We calculate measures for a developer’s connectedness
Claussen, Jörg   +2 more
core   +4 more sources

Common Fixed Points for Suzuki-Generalized Nonexpansive Maps

open access: yesJournal of Applied Mathematics, 2013
A common fixed point theorem for a pair of maps satisfying condition (C) is proved under certain conditions. We extend the well-knownDeMarr's fixed point theorem to the case of noncommuting family of maps satisfying condition (C).
Maryam A. Alghamdi   +2 more
doaj   +1 more source

General Common Fixed Point Theorems and Applications [PDF]

open access: yesJournal of Applied Mathematics, 2012
The main result is a common fixed point theorem for a pair of multivalued maps on a complete metric space extending a recent result of Đorić and Lazović (2011) for a multivalued map on a metric space satisfying Ćirić‐Suzuki‐type‐generalized contraction.
Singh, Shyam Lal   +3 more
openaire   +4 more sources

Handle Operators of Coset Models

open access: yes, 1993
Several interesting features of coset models "without fixed points" are easily understood via Chern-Simons theory. In this paper we derive explicit formulae for the handle-squashing operator in these cosets. These operators are fixed, linear combinations
Crescimanno, Michael
core   +2 more sources

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