Results 41 to 50 of about 1,233,552 (279)

On Fuzzy Co-Pre-Hilbert Spaces

Journal of Kufa for Mathematics and Computer, 2013
This paper introduces the concepts fuzzy pre-Hilbert spaces and fuzzy co-pre-Hilbert spaces and proves some theorems in this subject. 
Noori F. Al-Mayahi, Intisar H. Radhi
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Tomography in Abstract Hilbert Spaces [PDF]

Open Systems & Information Dynamics, 2006
The tomographic description of a quantum state is formulated in an abstract infinite-dimensional Hilbert space framework, the space of the Hilbert-Schmidt linear operators, with trace formula as scalar product. Resolutions of the unity, written in terms of over-complete sets of rank-one projectors and of associated Gram-Schmidt operators taking into ...
Vladimir I. Man'ko, Giuseppe Marmo, Andrea Simoni, Franco Ventriglia   +3 more
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One result on boundedness of the Hilbert transform in Marcinkiewics spaces

Вестник КазНУ. Серия математика, механика, информатика, 2022
In mathematics and in signal theory, the Hilbert transform is an important linear operator that takes a real-valued function and produces another real-valued function.
Nurken Tursynbayuly Bekbayev, K. S. Tulenov   +1 more
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ON HILBERT-SCHMIDT OPERATORS BETWEEN NON-SEPARABLE HILBERT SPACES

Al-Ulum
We first study Hilbert–Schmidt operators between non-separable Hilbert spaces. We employ concepts such as summable families in normed spaces, the packet summation theorem, and Hilbert bases.
Lucien Tebua Limalo Koto, Nestor Anzola Kibamba, Fidele Balibuno Luganda, Joseph-Desiré Bukweli Kyemba, Alain Musesa Landa   +4 more
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Application of symmetric analytic functions to spectra of linear operators

Karpatsʹkì Matematičnì Publìkacìï, 2021
The paper is devoted to extension of the theory of symmetric analytic functions on Banach sequence spaces to the spaces of nuclear and $p$-nuclear operators on the Hilbert space.
I. Burtnyak, I. Chernega, V. Hladkyi, O. Labachuk, Z. Novosad   +4 more
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Some Inequalities of the Gruss Type for the Numerical Radius of Bounded Linear Operators in Hilbert Spaces [PDF]

, 2008
Some inequalities of the Gr¨ uss type for the numerical radius of bounded linear operators in Hilbert spaces are ...
S. S. Dragomir, Dragomir, Sever S, Dragomir SS   +2 more
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A WEAK HILBERT SPACE THAT IS A TWISTED HILBERT SPACE

Journal of the Institute of Mathematics of Jussieu, 2018
We construct a weak Hilbert space that is a twisted Hilbert space.
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Hilbert-generated spaces

Journal of Functional Analysis, 2003
A Banach space \(X\) is called \(\mathcal P\)-generated (where \(\mathcal P\) is a property of Banach spaces) if there is a Banach space \(Y\) with property \(\mathcal P\) and a continuous linear operator from \(Y\) into \(X\) with dense range. \textit{M. Fabian}, \textit{G. Godefroy} and \textit{V. Zizler} [Isr. J. Math.
Fabian, M., Godefroy, G., Hájek, P., Zizler, V.   +3 more
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Ternary structures in Hilbert spaces [PDF]

, 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
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Topological Transitivity of Shift Similar Operators on Nonseparable Hilbert Spaces

Journal of Function Spaces, 2021
In this paper, we investigate topological transitivity of operators on nonseparable Hilbert spaces which are similar to backward weighted shifts.
Andriy Zagorodnyuk, Zoriana Novosad
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