Results 21 to 30 of about 584,481 (285)
Eventually positive semigroups of linear operators
Journal of Mathematical Analysis and Applications, 2016 We develop a systematic theory of eventually positive semigroups of linear operators mainly on spaces of continuous functions. By eventually positive we mean that for every positive initial condition the solution to the corresponding Cauchy problem is positive for large enough time.
Daniel Daners +2 more
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The Θ-transformation of certain positive linear operators
International Journal of Mathematics and Mathematical Sciences, 1996 The intention of this paper is to describe a construction method for a new sequence of linear positive operators, which enables us to get a pointwise order of approximation regarding the polynomial summator operators which have best properties of ...
Aleandru Lupaş, Detlef H. Mache
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Estimates for the Differences of Certain Positive Linear Operators
Mathematics, 2020 The present paper deals with estimates for differences of certain positive linear operators defined on bounded or unbounded intervals. Our approach involves Baskakov type operators, the kth order Kantorovich modification of the Baskakov operators, the ...
Ana Maria Acu, Sever Hodiş, Ioan Rașa
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Approximation of functions of two variables by certain linear positive operators
, 2007 We introduce certain linear positive operators and study some approximation properties of these operators in the space of functions, continuous on a compact set, of two variables.
Bascanbaz-Tunca, Gulen +2 more
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Extreme Positive Linear Operators.
MATHEMATICA SCANDINAVICA, 1969 Made available in DSpace on 2014-12-09T22:17:41Z (GMT). No. of bitstreams: 1 6808044.pdf: 4439781 bytes, checksum: 3672332eda28f28f87bd9d5ae1b3d9c4 (MD5) Previous issue date: 1967 ; Embargo set by: Seth Robbins for item 61762 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs ; Restricted to ...
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Neural Networks as Positive Linear Operators
MathematicsBasic neural network operators are interpreted as positive linear operators and the related general theory applies to them. These operators are induced by a symmetrized density function deriving from the parametrized and deformed hyperbolic tangent ...
George A. Anastassiou
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On New Classes of Stancu-Kantorovich-Type Operators
Mathematics, 2021 The present paper introduces new classes of Stancu–Kantorovich operators constructed in the King sense. For these classes of operators, we establish some convergence results, error estimations theorems and graphical properties of approximation for the ...
Bianca Ioana Vasian +2 more
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A characterization of positive linear maps and criteria of entanglement for quantum states
, 2010 Let $H$ and $K$ be (finite or infinite dimensional) complex Hilbert spaces. A characterization of positive completely bounded normal linear maps from ${\mathcal B}(H)$ into ${\mathcal B}(K)$ is given, which particularly gives a characterization of ...
Bengtsson I Zyczkowski K +16 more
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A sequence of positive linear operators
Journal of Numerical Analysis and Approximation Theory, 1995 Not available.
M. Ivan, I. Rașa
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Maps preserving absolute continuity and singularity of positive operators [PDF]
, 2020 In this paper we consider the cone of all positive, bounded operators acting on an infinite dimensional, complex Hilbert space, and examine bijective maps that preserve absolute continuity in both directions.
Gehér, György +2 more
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