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Uniform convergent expansions of the error function in terms of elementary functions
(Springer, 2023)
Artículo / Artikulua,
We derive a new analytic representation of the error function erfz
in the form of a convergent series whose terms are exponential and rational functions. The expansion holds uniformly in z in the double sector | arg (±z) ...
Sparse approximation using new greedy-like bases in superreflexive spaces
(Instytut Matematyczny, 2023)
Artículo / Artikulua,
This paper is devoted to theoretical aspects of optimality of sparse approximation. We undertake a quantitative study of new types of greedy-like bases that have recently arisen in the context of non-linear m-term approximation ...
A multi-splitting method to solve 2D parabolic reaction-diffusion singularly perturbed systems
(Elsevier, 2023)
Artículo / Artikulua,
In this paper we design and analyze a numerical method to solve a type of reaction-diffusion 2D parabolic singularly perturbed systems. The method combines the central finite difference scheme on an appropriate piecewise ...
Space mission risk, sustainability and supply chain: review, multi-objective optimization model and practical approach
(MDPI, 2023)
Artículo / Artikulua,
This paper investigates the convergence of risk, sustainability, and supply chain in space
missions, including a review of fundamental concepts, the introduction of a multi-objective conceptual
optimization model, and ...
Measures of embedding for interval-valued fuzzy sets
(Elsevier, 2023)
Artículo / Artikulua,
Interval-valued fuzzy sets are a generalization of classical fuzzy sets where the membership values are intervals. The epistemic interpretation of interval-valued fuzzy sets assumes that there is one real-valued membership ...
The ideal of Lesieur-Croisot elements of Jordan pairs
(Taylor and Francis Group, 2023)
Artículo / Artikulua,
We study the sets of elements of Jordan pairs whose local Jordan algebras are Lesieur-Croisot algebras, that is, classical orders in nondegenerate Jordan algebras with finite capacity. It is then proved that, if the Jordan ...
Association of intrinsic capacity with incidence and mortality of cardiovascular disease: prospective study in UK Biobank
(Wiley, 2023)
Artículo / Artikulua,
Background: The World Health Organization proposed the concept of intrinsic capacity (IC; the composite of all the physical and mental capacities of the individual) as central for healthy ageing. However, little research ...
On the notion of fuzzy dispersion measure and its application to triangular fuzzy numbers
(Elsevier, 2023)
Artículo / Artikulua,
In this paper, based on the analysis of the most widely used dispersion measure in the real context (namely, the variance), we introduce the notion of fuzzy dispersion measure associated to a finite set of data given by ...
Achieving transfer from mathematics learning
(MDPI, 2023)
Artículo / Artikulua,
The question of transfer is a special challenge in mathematics teaching because the wide range and fragmentation of the curricula have in many cases fostered an instrumental understanding, which makes transfer difficult ...
Robots for elderly care: review, multi-criteria optimization model and qualitative case study
(MDPI, 2023)
Artículo / Artikulua,
This paper focuses on three areas: the first is a review of current knowledge about social and service robots for elderly care. The second is an optimization conceptual model aimed at maximizing the efficiency of assigning ...