Results 101 to 110 of about 421,577 (266)

On operators with bounded approximation property [PDF]

open access: yesarXiv, 2013
It is known that any separable Banach space with BAP is a complemented subspace of a Banach space with a basis. We show that every operator with bounded approximation property, acting from a separable Banach space, can be factored through a Banach space with a basis.
arxiv  

A class of Banach spaces

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 2007
Let $G$ be a separable locally compact unimodular group of type I, $ \widehat{G}$ be its dual, $\hat{p}$ is a measurable field of, not necessary bounded, operators on $\widehat{G}$ such that $\hat{p}(\pi)$ is self-adjoint, $\hat{p}(\pi) \geq I$ for $\mu-$almost all $\pi \in \widehat{G}$, and $$A_{\hat{p} }(G) =\{f(x):=\int_{ \widehat{G}} Tr[\hat{f}(\pi)
openaire   +4 more sources

On the weak uniform rotundity of Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We prove that if Xi,i=1,2,…, are Banach spaces that are weak* uniformly rotund, then their lp product space (p>1) is weak* uniformly rotund, and for any weak or weak* uniformly rotund Banach space, its quotient space is also weak or weak* uniformly ...
Wen D. Chang, Ping Chang
doaj   +1 more source

Banach spaces with Property (w) [PDF]

open access: yesarXiv, 1991
A Banach space E is said to have Property (w) if every (bounded linear) operator from E into E' is weakly compact. We give some interesting examples of James type Banach spaces with Property (w). We also consider the passing of Property (w) from E to C(K,E).
arxiv  

Generalizing the Paley-Wiener perturbation theory for Banach spaces [PDF]

open access: yesarXiv, 1997
We extend the Paley-Wiener pertubation theory to linear operators mapping a subspace of one Banach space into another Banach space.
arxiv  

Richards's curve induced Banach space valued ordinary and fractional neural network approximation. [PDF]

open access: yesRev R Acad Cienc Exactas Fis Nat A Mat, 2023
Anastassiou GA, Karateke S.
europepmc   +1 more source

A note on Johansen's rank conditions and the Jordan form of a matrix

open access: yesJournal of Time Series Analysis, EarlyView.
This note presents insights on the Jordan structure of a matrix which are derived from an extension of the I(1) and I(2) conditions in Johansen (1996). It is first observed that these conditions not only characterize, as it is well known, the size (1 or 2) of the largest Jordan block in the Jordan form of the companion matrix but more generally the ...
Massimo Franchi
wiley   +1 more source

Monitoring panels of sparse functional data

open access: yesJournal of Time Series Analysis, EarlyView.
Panels of random functions are common in applications of functional data analysis. They often occur when sequences of functions are observed at a number of different locations. We propose a methodology to monitor for structural breaks in such panels and to identify the changing components with statistical certainty.
Tim Kutta   +2 more
wiley   +1 more source

The Banach-Saks Properties in Orlicz-Lorentz Spaces

open access: yesAbstract and Applied Analysis, 2014
The Banach-Saks index of an Orlicz-Lorentz space Λφ,w(I) for both function and sequence case, is computed with respect to its Matuszewska-Orlicz indices of φ. It is also shown that an Orlicz-Lorentz function space has weak Banach-Saks (resp., Banach-Saks)
Anna Kamińska, Han Ju Lee
doaj   +1 more source

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