Results 81 to 90 of about 831,822 (202)

Two fixed-point theorems

Mathematical Notes, 1999
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +4 more sources

A Fixed Point Theorem for Monotone Functions equivalent to Browers theorem [PDF]

A Fixed Point Theorem for Monotone Functions equivalent to Browers theoremIncreasing function; Fixed ...
Persson, Håkan
core  

FIXED-POINT THEOREMS FOR NONCOMPACT MAPPINGS IN HILBERT SPACE [PDF]

, 1965
Felix E. Browder
openalex   +1 more source

The fixed point index and asymptotic fixed point theorems for $k$-set-contractions [PDF]

, 1969
Roger D. Nussbaum
openalex   +1 more source

Nonlinear Inequality, Fixed Point and NashEquilibrium [PDF]

In this paper, we give new sufficient conditions for the existence of a solution of theg-maximum equality. As a consequence, we prove a new fixed point theorem.
Moussa Larbani, Rabia Nessah, Tarik Tazdaït   +2 more
core  

A Generalization of Kannan's Fixed Point Theorem

Fixed Point Theory and Applications, 2009
In order to observe the condition of Kannan mappings, we prove a generalization of Kannan's fixed point theorem. Our theorem involves constants and we obtain the best constants to ensure a fixed point.
Enjouji Yusuke, Nakanishi Masato, Suzuki Tomonari   +2 more
doaj  

Existence of Perfect Equilibria: A Direct Proof [PDF]

We formulate and prove a modification of Eilenberg-Montgomery fixed-point theorem, which is a generalization of Kakutani’s theorem. It enables us to provide a direct proof of the existence of perfect equilibria in finite normal form games and extensive ...
I. Topolyan
core  

Fixed-point theorems for certain classes of nonexpansive mappings [PDF]

, 1969
L. P. Belluce, W. A. Kirk
openalex   +1 more source

On a generalized Krasnoselskii fixed point theorem

Open Mathematics
This study concerns a Krasnoselskii-type fixed point theorem for the sum of two operators A,BA,B in a Banach space EE, where BB is a Reich-type contractive mapping and AA is a k-set contractive mapping.
Pham Hien Van
doaj   +1 more source

An elementary proof of the fixed-point theorem of Browder and Kirk. [PDF]

, 1969
K. Goebel
openalex   +1 more source