EuDML | Browse

We characterize surjective nonlinear maps Φ between unital C*-algebras 𝒜 and ℬ that satisfy w(Φ(A)-Φ(B))) = w(A-B) for all A,B ∈ 𝒜 under a mild condition that Φ(I) - Φ(0) belongs to the center of ℬ, where w(A) is the numerical radius of A and I is the unit of 𝒜.

Maximal semigroups dominated by 0-1 matrices.

H. Radjavi, M. Omladic, T. Kosir (1997)

Semigroup forum

Maximality principle and general results of Ekeland and Caristi types without lower semicontinuity assumptions in cone uniform spaces with generalized pseudodistances.

Włodarczyk, Kazimierz, Plebaniak, Robert (2010)

Fixed Point Theory and Applications [electronic only]

Metric domains, holomorphic mappings and nonlinear semigroups.

Reich, Simeon, Shoikhet, David (1998)

Abstract and Applied Analysis

Moudafi's viscosity approximations with demi-continuous and strong pseudo-contractions for non-expansive semigroups.

Wu, Changqun, Cho, Sun Young, Shang, Meijuan (2010)

Journal of Inequalities and Applications [electronic only]

Nonautonomous functional equations and nonlinear evolution operators

Rosanna Villella-Bressan, Glenn F. Webb (1984)

Rendiconti del Seminario Matematico della Università di Padova

Non-compact perturbations of $m$ -accretive operators in general Banach spaces

Mieczysław Cichoń (1992)

Commentationes Mathematicae Universitatis Carolinae

In this paper we deal with the Cauchy problem for differential inclusions governed by $m$ -accretive operators in general Banach spaces. We are interested in finding the sufficient conditions for the existence of integral solutions of the problem $x^{'} (t) \in - A x (t) + f (t, x (t))$ , $x (0) = x_{0}$ , where $A$ is an $m$ -accretive operator, and $f$ is a continuous, but non-compact perturbation, satisfying some additional conditions.

Non-convex perturbations of evolution equations with $m$ -dissipative operators in Banach spaces

Evgenios P. Avgerinos, Nikolaos S. Papageorgiou (1989)

Commentationes Mathematicae Universitatis Carolinae

Nonlinear ergodic theorems for a semitopological semigroup of non-Lipschitzian mappings without convexity.

Li, G., Kim, J.K. (1999)

Abstract and Applied Analysis

Nonlinear ergodic theorems for asymptotically almost nonexpansive curves in a Hilbert space.

Li, Gang, Kim, Jong Kyu (2000)

Abstract and Applied Analysis

Nonlinear evolution equations.

Lin, Chin-Yuan (2005)

Electronic Journal of Differential Equations (EJDE) [electronic only]

Nonlinear feedback stabilization of a rotating body-beam without damping

Boumediène Chentouf, Jean-François Couchouron (1999)

ESAIM: Control, Optimisation and Calculus of Variations

Nonlinear feedback stabilization of a rotating body-beam without damping

Boumediène CHENTOUF, Jean-François COUCHOURON (2010)

ESAIM: Control, Optimisation and Calculus of Variations

This paper deals with nonlinear feedback stabilization problem of a flexible beam clamped at a rigid body and free at the other end. We assume that there is no damping and the feedback law proposed here consists of a nonlinear control torque applied to the rigid body and either a boundary control moment or a nonlinear boundary control force or both of them applied to the free end of the beam. This nonlinear feedback, which insures the exponential decay of the beam vibrations, extends the linear...

Nonlinear mean ergodic theorems for semigroups in Hilbert spaces.

Temir, Seyit, Gul, Ozlem (2007)

Fixed Point Theory and Applications [electronic only]

Currently displaying 81 – 100 of 167

Previous Page 5 Next