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Daugavet points in projective tensor products
Oxford University Press (2021-08-04)In this paper, we are interested in studying when an element z in the projective tensor product X⊗ˆπY turns out to be a Daugavet point. We prove first that, under some hypothesis, the assumption of X⊗ˆπY having the Daugavet ... -
Dealing with variability in ecological modelling: An analysis of a random non-autonomous logistic population model
John Wiley & Sons, Ltd. (2021-05-09)This paper presents a methodology to deal with the randomness associated toecological modelling. Data variability makes it necessary to analyse the impactof random perturbations on the fitted model parameters. We conduct ...
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Decoding of matrix-product codes
World Scientific Publishing Company (2013-06)We propose a decoding algorithm for the (u | u + v)-construction that decodes up to half of the minimum distance of the linear code. We extend this algorithm for a class of matrix-product codes in two different ways. In ... -
Design of a Mathematica package to develop the product of some spherical functions as linear combinations of themselves
Wiley (2019-09)Results obtained when solving problems about atomic physics and about the potential theory show an almost spherical symmetry. These solutions can only be expressed in an exact form on a few occasions, so turning to ...
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Detecting and visualizing differences in brain structures with SPHARM and functional data analysis
Elsevier (2020-08-07)A new procedure for classifying brain structures described by SPHARM is presented. We combine a dimension reduction technique (functional principal component analysis or functional independent component analysis) with ...
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Detection of Anomalies in Water Networks by Functional Data Analysis
Hindawi Publishing Corporation (2018)A functional data analysis (FDA) based methodology for detecting anomalous flows in urban water networks is introduced. Primary hydraulic variables are recorded in real-time by telecontrol systems, so they are functional ...
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Detection of special curves via the double resultant
Springer Verlag (2017)We introduce several applications of the use of the double resultant through some examples of computation of different nature: special level sets of rational first integrals for rational discrete dynamical systems; remarkable ...
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Development and Validation of a Meta-Instrument for Nursing Assessment in Adult Hospitalization Units (VALENF Instrument) (Part I)
MDPI (2022-11-08)Nursing assessment is the basis for performing interventions that match patient needs, but nurses perceive it as an administrative load. This research aims to develop and validate a meta-instrument that integrates the ...
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Diameter preserving mappings between function algebras
Mathematical Society of the Republic of China (2011)In this paper we study the behaviour of linear diameter preserving mappings when defined between subalgebras of continuous functions. Namely, we obtain a representation of such mappings as the sum of a weighted composition ...
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Diameter preserving maps on function spaces
Springer (2016-08-16)In this paper we describe, under certain assumptions, surjective diameter preserving mappings when defined between function spaces, not necessarily algebras, thus extending most of the previous results for these operators. ...
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Dieudonné Completion and PT-Groups
Springer Netherlands (2012-02)We consider the classes of PT-groups, strong PT-groups, completion friendly groups, and Moscow groups introduced by Arhangel’skii for the study of the Dieudonné completion of topological groups. We show that every subgroup ...
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Dimension and entropy in compact topological groups
Elsevier (2019-03)We study the topological entropy h(f) of continuous endomorphisms f of compact-like groups. More specifically, we consider the e-spectrum E top (K) for a compact-like group K (namely, the set of all values h(f) , when f ...
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Directional analysis for point patterns on linear networks
Wiley (2020)Statistical analysis of point processes often assumes that the underlying process is isotropic in the sense that its distribution is invariant under rotation. For point processes on R2 , some tests based on the K- and ...
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Discrete Equivalence of Non-positive at Infinity Plane Valuations
Springer (2021-06-26)Non-positive at infinity valuations are a class of real plane valuations which have a nice geometrical behavior. They are divided in three types. We study the dual graphs of non-positive at infinity valuations and give ...
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Disentangling mite predator-prey relationships by multiplex PCR
Wiley (2015)Gut content analysis using molecular techniques can help elucidate predator-prey relationships in situations in which other methodologies are not feasible, such as in the case of trophic interactions between minute species ...
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Disjointness preserving mappings on BSE Ditkin algebras
Institute of Mathematics, University of Debrecen, Hungary (2011)Let A and B be regular Banach function algebras. A linear map T de_ned from A into B is said to be disjointness preserving or sepa- rating if f _ g _ 0 implies T(f) _ T(g) _ 0 for all f; g 2 A. We prove that if there ...
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Disjointness preserving maps between vector-valued group algebras
(2018-06)Let G be a locally compact abelian group and B be a commutative Banach algebra. Let L1(G,B) be the Banach algebra of B-valued Bochner integrable functions on G. In this paper we provide a complete description of continuous ...
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Distributional chaos for the Forward and Backward Control traffic model
Elsevier (2015-05-02)The interest in car-following models has increased in the last years due to its connection with vehicle-to-vehicle communications and the development of driverless cars. Some non-linear models such as the Gazes–Herman–Rothery ...
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Distributionally chaotic families of operators on Fréchet spaces
American Institute of Mathematical Sciences (2016)The existence of distributional chaos and distributional irregular vectors has been recently considered in the study of linear dynamics of operators and C0-semigroups. In this paper we extend some previous results on both ...
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Do users have the ability to self-repair non-complex electrical appliances? Design and development of a self-guided workshop with repair documentation in different formats
Elsevier (2023)In the context of the circular economy, repair is one of the main strategies to extend the lifespan of products. However, when it comes to non-complex and inexpensive small household electric and electronic equipment (EEE), ...
