Results 51 to 60 of about 3,767,508 (152)
Journal of Applied Econometrics, Volume 41, Issue 5, Page 613-626, August 2026.ABSTRACT Double/debiased machine learning (DML) uses for estimating an average treatment effect (ATE) a double‐robust score function that relies on the prediction of nuisance functions, such as the propensity score, which is the probability of treatment assignment given covariates.
Daniele Ballinari, Nora Bearth
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Riesz lacunary uniform integrability and statistical convergence via power series method
Journal of Inequalities and ApplicationsIn this paper, the concepts of Riesz lacunary statistical convergence, Riesz lacunary strong convergence, and Riesz lacunary uniform integrability of real sequences within the framework of power series are introduced and studied.
Jun-Jie Quan +3 more
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A New Density Hierarchy Based on Riesz and Hölder Summability
MathematicsLet f(n) be an Erdős–Ulam function satisfying f(n+1)/f(n)→1 as n→∞, and let Af denote the associated Riesz matrix. Furthermore, let Af* be the Riesz matrix generated by the weights f(n)/f(1)+f(2)+⋯+f(n), n≥1.
János T. Tóth +2 more
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Nörlund and Riesz Mean of Sequences of Bi-complex Numbers
In this article we have investigated some properties of the Nörlund and Riesz mean of sequences of bi-complex numbers. We establish necessary and sufficient conditions for the Nörlund and Riesz means to transform convergent sequences of bi-complex ...
Binod Chandra Tripathy, Subhajit Bera
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Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 14244-14265, August 2026.ABSTRACT In this second part of our series of papers, we develop an abstract framework suitable for de Rham complexes that depend on a parameter belonging to an arbitrary Banach space. Our primary focus is on spectral perturbation problems and the differentiability of eigenvalues with respect to perturbations of the involved parameters. As a byproduct,
Pier Domenico Lamberti +2 more
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, 2009 Ruang Riesz merupakan kelanjutan dari teori latis sehingga beberapa teorema yang berlaku pada latis berlaku pula pada ruang Riesz. Pada ruang Riesz berlaku beberapa hukum diantaranya adalah Pertidaksamaan Segitiga, Infinite Distributive Laws ...
Istikomah, Dhian Arista +1 more
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, 2014 In this paper, we introduce some new spaces of almost convergent sequences derived by Riesz mean and the lacunary sequence in a real n-normed space. By combining the definitions of lacunary sequence and Riesz mean, we obtain a new concept of statistical ...
Başarır, Metin
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Mathematical Methods in the Applied Sciences, Volume 49, Issue 12, Page 14122-14148, August 2026.ABSTRACT This paper develops a mathematical framework for interpreting observations of solar inertial waves in an idealized setting. Under the assumption of purely toroidal linear waves on the sphere, the stream function of the flow satisfies a fourth‐order scalar equation.
Tram Thi Ngoc Nguyen +3 more
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Well‐Posedness and Analyticity of Solutions to the Stationary MHD Equations
ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 8, August 2026.ABSTRACT We consider the stationary problem of the MHD equations in R3$\mathbb {R}^3$. The aim of this article is to show existence, uniqueness, regularity, and analyticity of solutions in the scaling invariant homogeneous Besov space Ḃp,q−1+3/p$\dot{B}^{-1 + 3/p}_{p, q}$ for 1⩽p<3$1 \leqslant p < 3$ and 1⩽q⩽∞$1 \leqslant q \leqslant \infty$.
Kento Sube
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EntropySuperdiffusion is usually defined as a random walk process of a molecule, in which the time evolution of the mean-squared displacement, σ2, of the molecule is a power function of time, σ2(t)∼t2/γ, with γ∈(1,2).
Tadeusz Kosztołowicz
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