نتایج جستجو برای: accretive operators

تعداد نتایج: 98917  

2017
Dongfeng Li Y. J. Cho

The purpose of this article is to investigate common solutions of a zero point problem of a accretive operator and a fixed point problem of a nonexpansive mapping via a viscosity approximation method involving a τ-contractive mapping. c ©2017 All rights reserved.

Journal: :Siam Journal on Control and Optimization 2023

We study port-Hamiltonian systems on a family of intervals and characterize all boundary conditions leading to m-accretive realizations the operator thus generators contractive semigroups. The proofs are based structural observation that can be transformed derivative familiy reference by suitable congruence relations, allowing for studying simpler case transport equation. Moreover, we provide w...

2010
J. GWINNER

For the approximation of fixed points of a nonexpansive operator T in a uniformly convex Banach space E the convergence of the Mann-Toeplitz iteration x„+1 = a„T(x„) + (1 a„)xñ is studied. Strong convergence is established for a special class of operators T. Via regularization this result can be used for general nonexpansive operators, if E possesses a weakly sequentially continuous duality map...

Journal: :Filomat 2021

In this article, we present new inequalities for the numerical radius of sum two Hilbert space operators. These will enable us to obtain many generalizations and refinements some well known inequalities, including multiplicative behavior norm bounds. Among other applications, it is shown that if T accretive-dissipative, then 1/?2 ||T|| ? ?(T), where ?(?) ||?||denote usual operator norm, respect...

Journal: :Proceedings of the American Mathematical Society 1979

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