Results 51 to 60 of about 174,550,829 (158)

A fixed point result for semigroups of monotone operators and a solution of discontinuous nonlinear functional-differential equations

open access: yesHacettepe Journal of Mathematics and Statistics, 2021
We improve some fixed point theorems by stating a fixed point result for semigroups of monotone operators in the setting of ordered Banach spaces with a normal cone. We illustrate the usefulness of our results by proving the existence and conditional unicity of a solution of an initial value problem for discontinuous nonlinear functional-differential ...
openaire   +3 more sources

Nonlinear semigroups

open access: yes, 1992
This book presents a systematic exposition of the general theory of nonlinear contraction semigroups in Banach spaces and is aimed at students and researchers in science and engineering as well as in mathematics.
Cho, Choong Y, Miyadera, Isao
core  

Semigroups of truncated Toeplitz operators

open access: yes, 2018
We characterise the one parameter families of truncated Toeplitz operators that are semigroups, uniformly continuous semigroups and $C_0$-semigroups of contractions.
ZARRABI, Mohamed   +3 more
core   +1 more source

Convergence of operators semigroups generated by elliptic operators [PDF]

open access: yes, 1997
Röckner M, Zhang TS. Convergence of operators semigroups generated by elliptic operators. Osaka Journal of Mathematics.
Zhang, TS   +2 more
core   +1 more source

CONTINUOUS INFINITESIMAL GENERATORS OF A CLASS OF NONLINEAR EVOLUTION OPERATORS IN BANACH SPACES [PDF]

open access: yes, 2014
application/pdfA class of nonlinear evolution operators is introduced and a characterization of continuous in nitesimal generators of such evolution operators is given by applying the results on semigroups of Lipschitz ...
TOMIZAWA, Yukino, 23335
core   +1 more source

Convergence of difference approximations and nonlinear semigroups

open access: yes, 1990
We give a convergence theorem for the difference approximation for the evolution equation ( d / d t ) u ( t ) ∈ A u ( t ...
Shigeo Kanda
core   +1 more source

A random walk for the solution sought: Remarks on the difference scheme approach to nonlinear semigroups and evolution operators

open access: yesSemigroup Forum, 1987
The author extends a previous result due to Crandall and Evans for the existence of a mild solution of the abstract Cauchy problem: \[ u'(t)+Au(t)\ni F(t,u(t)). \]
openaire   +1 more source

Difference Approximation of Nonlinear Evolution Equations and Semigroups of Nonlinear Operators

open access: yesPublications of the Research Institute for Mathematical Sciences, 1974
Kenmochi, Nobuyuki, Oharu, Sinnosuke
openaire   +3 more sources

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