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From Quantum Time to Manifestly Covariant QFT: On the Need for a Quantum-Action-Based Quantization. [PDF]

Entropy (Basel)
Diaz NL.
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Time-Frequency and Spectral Analysis of Welding Arc Sound for Automated SMAW Quality Classification. [PDF]

Sensors (Basel)
García Rodríguez A, Barriga Castellanos CC, Rocha-Gonzalez JE, Bárcenas E.   +3 more
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Positive linear operators and exponential functions

Mathematical Foundations of Computing, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ana Maria Acu, Ioan Rasa, Andra Seserman
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On a Class of Positive Linear Operators

Canadian Mathematical Bulletin, 1973
In a recent paper [3] Meir and Sharma introduced a generalization of the Sα- method of summability. The elements of their matrix, (ank), are defined by(1)where is a sequence of complex numbers. if 0 < αj < l for each j = 0, 1, 2,… then ank≥0 for each n = 0, 1, 2,… and k = 0,1,2,…
Swetits, J., Wood, B.
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Means of positive linear operators

Mathematische Annalen, 1980
Tsuyoshi Ando
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On Linear Positive Operators

Journal of the London Mathematical Society, 1983
Soit L n (h;x)=Σ ∞k=0 a nk g n,k (x)h(k/n). On cherche g n,k (x) unique de facon que L n soit un operateur positif lineaire approchant h dans un certain ...
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Matrix Summability and Positive Linear Operators

Positivity, 2007
The continuous function \(\rho: \mathbb{R}\to\mathbb{R}\) is called weight function if \(\lim_{|x|\to\infty} \rho(x)=+\infty\) and \(\rho(x)\geq 1\) for all \(x\in\mathbb{R}\). The weighted space \(B_\rho\) contains the all real-valued functions \(f\) defined on \(\mathbb{R}\) for which \(|f(x)|\leq M_f\cdot\rho(x)\) for every \(x\in\mathbb{R}\) (\(M_f\
Atlihan, Özlem G., Orhan, Cihan
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On a Sequence of Linear and Positive Operators

Results in Mathematics, 2009
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A Class of Positive Linear Operators

Canadian Mathematical Bulletin, 1968
Let F[a, b] be the linear space of all real valued functions defined on [a, b]. A linear operator L: C[a, b] → F[a, b] is called positive (and hence monotone) on C[a, b] if L(f)≥0 whenever f≥0. There has been a considerable amount of research concerned with the convergence of sequences of the form {Ln(f)} to f where {Ln} is a sequence of positive ...
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