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Displaying 6301 – 6320 of 13227

Old and new results on Allan's GB*-algebras

Maria Fragoulopoulou, Atsushi Inoue, Klaus-Detlef Kürsten (2010)

Banach Center Publications

This is an expository paper on the importance and applications of GB*-algebras in the theory of unbounded operators, which is closely related to quantum field theory and quantum mechanics. After recalling the definition and the main examples of GB*-algebras we exhibit their most important properties. Then, through concrete examples we are led to a question concerning the structure of the completion of a given C*-algebra 𝓐₀[||·||₀], under a locally convex *-algebra topology τ, making the multiplication...

On $0 - 1$ measure for projectors

Václav Alda (1980)

Aplikace matematiky

An example of a finite set of projectors in $E_{3}$ is exhibited for which no 0-1 measure exists.

On $0 - 1$ measure for projectors. II

Václav Alda (1981)

Aplikace matematiky

On 1-parameter subgroups of the circle-exponent function in A-convex topological algebras.

Tsertos, Y. (2010)

Banach Journal of Mathematical Analysis [electronic only]

On $2 \times 2$ matrices over $C^{*}$ -algebras.

Moslehian, M.S. (2003)

Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]

On 2-strong homomorphisms and 2-normed hypersets in hypervector spaces.

Raja, P., Vaezpour, S.M. (2008)

The Journal of Nonlinear Sciences and its Applications

On a Barrelled Space of Class ... and Measure Theory.

J.C. Ferrando, L.M. Sánchez Ruiz (1992)

Mathematica Scandinavica

On a canonical two-dimensional space of continuous functions

Jitka Laitochová (1988)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

On a Cauchy-Jensen functional inequality.

Najati, Abbas, Lee, Jung-Rye, Park, Choonkil (2010)

Bulletin of the Malaysian Mathematical Sciences Society. Second Series

On a certain class of always convergent sequences and the Rayleigh quotient iterations

Tomáš Kojecký (1988)

Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica

On a certain class of subspectra

Andrzej Sołtysiak (1991)

Commentationes Mathematicae Universitatis Carolinae

The aim of this paper is to characterize a class of subspectra for which the geometric spectral radius is the same and depends only upon a commuting $n$ -tuple of elements of a complex Banach algebra. We prove also that all these subspectra have the same capacity.

On a certain class of $Λ$ -structures. I

Stanislav Tomášek (1970)

Czechoslovak Mathematical Journal

On a certain class of $Λ$ -structures. II

Stanislav Tomášek (1970)

Czechoslovak Mathematical Journal

On a characterisation of inner product spaces.

Chelidze, G. (2001)

Georgian Mathematical Journal

On a characterization of $L^{p}$ -norm

Janusz Matkowski (1989)

Annales Polonici Mathematici

On a characterization of reflexive Banach spaces

Emilia Perri (1983)

Rendiconti del Seminario Matematico della Università di Padova

On a class of Banach spaces of analytic functions.

D. Georgijevic (1979)

Publications de l'Institut Mathématique [Elektronische Ressource]

On a class of convex sets

Constantin Zălinescu (1986)

Commentationes Mathematicae Universitatis Carolinae

On a class of difference sequences related to the $ℓ^{p}$ space defined by Orlicz functions

Binod Chandra Tripathy, Sabita Mahanta (2007)

Mathematica Slovaca

On a Class of Fractional Type Integral Equations in Variable Exponent Spaces

Rafeiro, Humberto, Samko, Stefan (2007)

Fractional Calculus and Applied Analysis

2000 Mathematics Subject Classification: 45A05, 45B05, 45E05,45P05, 46E30We obtain a criterion of Fredholmness and formula for the Fredholm index of a certain class of one-dimensional integral operators M with a weak singularity in the kernel, from the variable exponent Lebesgue space L^p(·) ([a, b], ?) to the Sobolev type space L^α,p(·) ([a, b], ?) of fractional smoothness. We also give formulas of closed form solutions ϕ ∈ L^p(·) of the 1st kind integral equation M0ϕ = f, known as the generalized...

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