Results 101 to 110 of about 530 (201)

Asymptotic behavior of almost-orbits of reversible semigroups of non-Lipschitzian mappings in Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Let C be a nonempty closed convex subset of a uniformly convex Banach space E with a Fréchet differentiable norm, G a right reversible semitopological semigroup, and 𝒮={S(t):t∈G} a continuous representation of G as mappings of asymptotically nonexpansive
Jong Soo Jung   +2 more
doaj   +1 more source

From Stability to Chaos: A Complete Classification of the Damped Klein‐Gordon Dynamics

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 9, Page 9696-9708, June 2026.
ABSTRACT We investigate the transition between stability and chaos in the damped Klein‐Gordon equation, a fundamental model for wave propagation and energy dissipation. Using semigroup methods and spectral criteria, we derive explicit thresholds that determine when the system exhibits asymptotic stability and when it displays strong chaotic dynamics ...
Carlos Lizama   +2 more
wiley   +1 more source

The structure of fixed-point sets of Lipschitzian type semigroups [PDF]

open access: yes, 2012
The purpose of this paper is to establish some results on the structure of fixed point sets for one-parameter semigroups of nonlinear mappings which are not necessarily Lipschitzian in Banach spaces.
DR Sahu   +5 more
core   +1 more source

On the structure of linear semigroups [PDF]

open access: yes, 1971
Green's Lemma [1, Lemma 2.2] is one of the most important theorems in the theory of semigroups. The main purpose of this note is to establish a generalized Green's Lemma and a generalized Clifford and Miller's Theorem [1, p. 59] in linear semigroups.
Kim, Jin Bai
core   +1 more source

On the convergence of iteration processes for semigroups of nonlinear mappings in modular function spaces [PDF]

open access: yes, 2015
Let C be a ρ-bounded, ρ-closed, convex subset of a modular function space Lρ. We investigate the problem of constructing common fixed points for asymptotic pointwise nonexpansive semigroups of mappings Tt : C → C, i.e.
Wojciech M Kozlowski   +5 more
core   +1 more source

Common fixed points for lipschitzian semigroup

open access: yesElectronic Journal of Differential Equations, 2006
Lim and Xu [4] established a fixed point theorem for uniformly Lipschitzian mappings in metric spaces with uniform normal structure. Recently, Huang and Hong [1] extended hyperconvex metric space version of this theorem, by showing a common fixed point ...
Samir Lahrech   +2 more
doaj  

On the semigroup of Hadamard differentiable mappings [PDF]

open access: yesJournal of the Australian Mathematical Society, 1972
The main purpose of this paper is to prove that every automorphism of the semigroup of all Hadamard-differentiable mappings of a separable real Banach space into itself is inner. This generalizes the results of [7] which is a generalization of a result proved by Magill, Jr. [5].
openaire   +2 more sources

Topics in Semigroups [PDF]

open access: yes, 1967
The semigroup theories of fundamental importance were discovered in 1928 with the publication of a paper by A. K. Suschkewitsch. The paper is included in the only book published prior to 1961 dealing primarily with the algebraic theory of semigroups. The
Jenson, Merlin Ray
core   +2 more sources

EXISTENCE THEOREMS FOR ATTRACTIVE POINTS OF SEMIGROUPS OF BREGMAN GENERALIZED NONSPREADING MAPPINGS IN BANACH SPACES [PDF]

open access: yes, 2017
. In this paper, we establish new attractive point theorems for semigroups of generalized Bregman nonspreading mappings in reflexive Banach spaces.
Adv, Oper
core  

Automorphisms of partial endomorphism semigroups [PDF]

open access: yes, 2009
Publicationes Mathematicae DebrecenIn this paper we propose a general recipe for calculating the automorphism groups of semigroups consisting of partial endomorphisms of relational structures with a single m-ary relation for any m 2 N over a finite set.
Jesus, Manuel M.   +4 more
core  

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