Results 11 to 20 of about 178 (30)

Global smooth solutions to a class of one-dimensional hyperbolic problems with boundary damping

open access: yesDifferential and Integral Equations, 2004
In this paper an initial-boundary-value problem fo a nonlinear string (or wave)equation with nonclassical boundary conditioned is considered. One end of the string is assumed to be fixed and the other end of the string is attached to a dashpot system ...
Darmawijoyo, P. Clément, W. T. Horssen
semanticscholar   +1 more source

Operator Ideals arising from Generating Sequences [PDF]

open access: yes, 2011
In this note, we will discuss how to relate an operator ideal on Banach spaces to the sequential structures it defines. Concrete examples of ideals of compact, weakly compact, completely continuous, Banach-Saks and weakly Banach-Saks operators will be ...
Wong, Ngai-Ching
core   +1 more source

The ideal of weakly compactly generated operators acting on a Banach space [PDF]

open access: yes, 2013
We call a bounded linear operator acting between Banach spaces weakly compactly generated ($\mathsf{WCG}$ for short) if its range is contained in a weakly compactly generated subspace of its codomain.
Kania, Tomasz, Kochanek, Tomasz
core   +2 more sources

NONCLASSICAL SPECTRAL ASYMPTOTICS AND DIXMIER TRACES: FROM CIRCLES TO CONTACT MANIFOLDS

open access: yesForum of Mathematics, Sigma, 2017
We consider the spectral behavior and noncommutative geometry of commutators $[P,f]$ , where ...
HEIKO GIMPERLEIN, MAGNUS GOFFENG
doaj   +1 more source

Hierarchical zonotopal spaces [PDF]

open access: yes, 2010
Zonotopal algebra interweaves algebraic, geometric and combinatorial properties of a given linear map X. Of basic significance in this theory is the fact that the algebraic structures are derived from the geometry (via a non-linear procedure known as ...
Holtz, Olga, Ron, Amos, Xu, Zhiqiang
core   +1 more source

ON LINEAR AND MULTILINEAR MAPPINGS OF NUCLEAR TYPE

open access: yes, 2014
In this work, a technique is used in order to demonstrate the following lemmas “If s ∈ F(E,C(K)), then N0 ∞(S) = ‖S‖” and “If S ∈ F(E,Lp(Ω, μ)), then K 0 p(S) = ‖S‖” and open question is answered in 18.1.16 which belong to Albert Pietsch, at the same ...
B.M.C. Magui na, J. M. Ramos, H. na
semanticscholar   +1 more source

Every Banach ideal of polynomials is compatible with an operator ideal [PDF]

open access: yes, 2012
We show that for each Banach ideal of homogeneous polynomials, there exists a (necessarily unique) Banach operator ideal compatible with it. Analogously, we prove that any ideal of n-homogeneous polynomials belongs to a coherent sequence of ideals of k ...
Carando, Daniel Germán   +2 more
core   +1 more source

Semicrossed products of the disk algebra and the Jacobson radical

open access: yes, 2012
We consider semicrossed products of the disk algebra with respect to endomorphisms defined by finite Blaschke products. We characterize the Jacobson radical of these operator algebras.
Anchalee Khemphet   +10 more
core   +1 more source

Equivalence after extension for compact operators on Banach spaces

open access: yes, 2015
In recent years the coincidence of the operator relations equivalence after extension and Schur coupling was settled for the Hilbert space case, by showing that equivalence after extension implies equivalence after one-sided extension.
Messerschmidt, Miek   +2 more
core   +1 more source

Hybrid Normed Ideal Perturbations of n-tuples of Operators I

open access: yes, 2017
In hybrid normed ideal perturbations of $n$-tuples of operators, the normed ideal is allowed to vary with the component operators. We begin extending to this setting the machinery we developed for normed ideal perturbations based on the modulus of ...
Voiculescu, Dan-Virgil
core   +1 more source

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