Results 51 to 60 of about 675 (181)
The multiple interpolation de la Vallée Poussin problem
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015 This article is concerned with the solving of multiple interpolation de La Vallée Poussin problem for generalized convolution operator. Particular ate tention is paid to the proving of the sequential sufficiency of the set of solutions of the generalized
Valentin V Napalkov, Aigul U Mullabaeva
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Retrospective Mapping of Global Snow and Ice Cover Beyond the Satellite Observational Era
Earth and Space Science, Volume 12, Issue 5, May 2025.Abstract Monitoring Earth's snow and ice cover is essential for diverse applications, including climate studies, hydrological forecasting, and precipitation mapping. This study develops and evaluates methodologies to extend the Global Multisensor Automated Snow and Ice Mapping System (GMASI) records prior to its July 1987 inception, reconstructing high‐
Kingsley K. Kumah +2 more
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The Dunkl convolution operators and multipoint de la Vallee–Poussin problem
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2013 The Dunkl operator as an object of mathematical physics is considered, we study the kernel and the surjectivity of Dunkl convolution operators in the space of entire functions and the space of entire functions of exponential type.
Karina Raisovna Zabirova +1 more
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Journal of Plant Nutrition and Soil Science, Volume 188, Issue 2, Page 299-311, April 2025.ABSTRACT Background During the last decades, gamma spectrometry data have increasingly been used in soil science, for example, for mapping. However, the full data potential could not be exploited due to certain constraints, among which the insufficient representation of attenuating materials (in particular, water) in correction algorithms is the most ...
Ludger Herrmann, Georg Zimmermann
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A Tauberian Theorem for Double Cesàro Summability Method
International Journal of Mathematics and Mathematical Sciences, 2016 We have generalized Littlewood Tauberian theorems for (C,k,r) summability of double sequences by using oscillating behavior and de la Vallée-Poussin mean.
Bidu Bhusan Jena +2 more
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Journal of Flood Risk Management, Volume 18, Issue 1, March 2025.ABSTRACT The study provides insights into the impact of risk communication on adaptation behavior before and after the 2021 flood in western Germany. The aim is to ascertain how the flood influenced homeowners' adaptive behavior. The Protection Motivation Theory is employed to identify the factors that influence adaptive behavior and needs in response ...
Helene Meyer, Georg Johann
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Zhejiang Daxue xuebao. Lixue banIn this paper, we establish the Simpson quadrature formula for continuous periodic functions and investigate its quadrature accuracy for trigonometric polynomials, that is, when the quadrature formula holds exactly.
王丹丹(WANG Dandan), 赵易(ZHAO Yi)
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Mathematics, 2019 In this paper, the ill-posed problem of the two-dimensional modified Helmholtz equation is investigated in a strip domain. For obtaining a stable numerical approximation solution, a mollification regularization method with the de la Vallée Poussin ...
Shangqin He, Xiufang Feng
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The Carlson‐type zero‐density theorem for the Beurling ζ$\zeta$ function
Journal of the London Mathematical Society, Volume 111, Issue 3, March 2025.Abstract In a previous paper, we proved a Carlson‐type density theorem for zeroes in the critical strip for the Beurling zeta functions satisfying Axiom A of Knopfmacher. There we needed to invoke two additional conditions: the integrality of the norm (Condition B) and an “average Ramanujan condition” for the arithmetical function counting the number ...
Szilárd Gy. Révész
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