Results 91 to 100 of about 4,562 (230)

A generalization of fubini's theorem for banach algebra-valued measures [PDF]

open access: yes, 1984
Se demuestra una generalización del teorema deFubini para medidas vectoriales en algebras de Banach, en el caso en que la función a integrar toma también valores en el algebra.The present paper gives a generalization of Fubini's theorem when the function
Panchapagesan, T.V.   +2 more
core  

Linear maps on real C* - algebras and related structures

open access: yes, 2010
PhDIn this thesis we obtain new results on the structures of real C*-algebras and nonsurjective isometries between them. Some of the results have been published in [1].
Apazoglou, Maria
core  

A useful banach algebra

open access: yes, 1992
Summary: We introduce a Banach algebra of power series and give two applications, (i) an existence proof for the initial value problem \(w'(z)= f(z,w(z))\), \(w(z_0)= w_0\), and (ii) a proof of the implicit function theorem. These proofs are short, and they use only elementary results about power series, but no theorems on holomorphic functions.
openaire   +2 more sources

Involutions on Banach algebras [PDF]

open access: yesPacific Journal of Mathematics, 1959
Civin, Paul, Yood, Bertram
openaire   +2 more sources

Admissibility and Non-Uniform Dichotomy for Differential Systems

open access: yes, 2004
The problem of nonuniform exponential dichotomy of linear differential systems in Banach spaces is discussed. It is established a connection between the admissibility of a pair of certain function spaces which are translations invariant, on one hand ...
Preda, Ciprian I, Dragomir, Sever S
core  

Spectral integration and spectral theory for non-Archimedean Banach spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
Banach algebras over arbitrary complete non-Archimedean fields are considered such that operators may be nonanalytic. There are different types of Banach spaces over non-Archimedean fields.
S. Ludkovsky, B. Diarra
doaj   +1 more source

Inequalities for the Numerical Radius in Unital Normed Algebras

open access: yes, 2008
In this paper, some inequalities between the numerical radius of an element from a unital normed algebra and certain semi-inner products involving that element and the unity are ...
Dragomir, Sever S
core  

Real Characterization on Order Banach Algebra

open access: yes, 2016
In this paper we will study the real character on order Banach algebra with identity, and study character onorder Banach algebrawithout identity. We proved some properties on real character it.
Hassan, Sarah Fahim, Youssif, Boushra
core   +1 more source

Ternary structures in Hilbert spaces

open access: yes, 2011
PhDTernary structures in Hilbert spaces arose in the study of in nite dimensional manifolds in di erential geometry. In this thesis, we develop a structure theory of Hilbert ternary algebras and Jordan Hilbert triples which are Hilbert spaces equipped
Bahmani, Fatemeh
core  

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