Results 11 to 20 of about 1,549 (180)
On a problem of optimal recovery and Kolmogorov type inequalities on an interval
Journal of Approximation Theory, 2015 The author uses the solution of certain extremal problems in order to solve an optimal recovery problem for the \(k\)-th derivative of the function on an interval from the information on the function itself, given in the mean square metric. First, he shows an explicit expression for the error of the optimal recovery and for optimal methods in terms of ...
Bagramyan T.E.
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Disuguaglianze di Harnack alla frontiera per equazioni di Kolmogorov
Bruno Pini Mathematical Analysis Seminar, 2011 We describe some recent results on the boundary regularity for hypoelliptic Kolmogorov equations. We prove boundary Harnack inequalities of the positive solutions to Kolmogorov equations vanishing on some relatively open subset of the boundary ...
Sergio Polidoro
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Landau-Kolmogorov type inequalities in several variables for the Jacobi measure
Rendiconti di Matematica e delle Sue Applicazioni, 2014 This paper is devoted to Landau-Kolmogorov type inequalities in several variables in L2 norm for Jacobi measures. These measures are chosen in such a way that the partial derivatives of the Jacobi orthogonal polynomials are also orthogonal. These orthogonal polynomials in several variables are built by tensor product of the orthogonal polynomials in ...
Draux, André, Abbas, Lamia
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Analysis of Models to Estimate Morbidity Rates of Respiratory Diseases Through Deep Learning [PDF]
Tropical Medicine &International Health, Volume 31, Issue 6, Page 742-753, June 2026.ABSTRACT Respiratory diseases remain a challenge in Brazil due to socioeconomic inequalities and environmental risks that intensify population vulnerability. This study compared XGBoost with a deep learning model using stacked Gated Recurrent Units (GRU), trained with morbidity data from respiratory diseases and exogenous variables such as per capita ...
Liliane Moreira Nery +6 more
wiley +2 more sources
The best approximation of closed operators by bounded operators in Hilbert spaces
Karpatsʹkì Matematičnì Publìkacìï, 2022 We solve the problem of the best approximation of closed operators by linear bounded operators in Hilbert spaces under assumption that the operator transforms orthogonal basis in Hilbert space into an orthogonal system.
V.F. Babenko +2 more
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Interpolation inequalities in generalized Orlicz-Sobolev spaces and applications
Open Mathematics, 2023 Let m∈Nm\in {\mathbb{N}} and be a generalized Orlicz function. We obtained some interpolation inequalities for derivatives in generalized Orlicz-Sobolev spaces Wm,φ(Rn){W}^{m,\varphi }\left({{\mathbb{R}}}^{n}).
Wu Ruimin, Wang Songbai
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Equivalence of the Local Markov Inequality and a Kolmogorov Type Inequality in the Complex Plane [PDF]
Potential Analysis, 2012 Let \(m,\kappa\geq 1.\) A compact set \(E\subset\mathbb{C}\) is said to admit the local Markov property \(\mathrm{LMP}(m,\kappa)\) if, for all \( n\in\mathbb{N}\), \(z_0\in E\), \(r\in (0,1]\), the holomorphic polynomials \(P\) of degree at most \(n\) and \(j\in \mathbb{N}\) satisfy \[ |P^{(j)}(z_0)|\leq\left(\frac{c_1n^{\kappa}}{r^m}\right)^j\| P\|_{E\
Białas-Cież, Leokadia +1 more
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Free boundary value problems and hjb equations for the stochastic optimal control of elasto-plastic oscillators [PDF]
ESAIM: Proceedings and Surveys, 2019 We consider the optimal stopping and optimal control problems related to stochastic variational inequalities modeling elasto-plastic oscillators subject to random forcing.
Lauriere M. +4 more
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Bell-Boole Inequality: Nonlocality or Probabilistic Incompatibility of Random Variables?
Entropy, 2008 The main aim of this report is to inform the quantum information community about investigations on the problem of probabilistic compatibility of a family of random variables: a possibility to realize such a family on the basis of a single probability ...
Andrei Khrennikov
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Моделирование и анализ информационных систем, 2016 Evolution equations are derived for the contrasting-structure-type solution of the gen-eralized Kolmogorov–Petrovskii–Piskunov (GKPP) equation with the small parameter with high order derivatives.
A. A. Bykov
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