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Jackson-type approximation for fuzzy-valued functions by means of trapezoidal functions
University of Sistan and Baluchestan (2023-12-15)In this paper, we provide new several Jackson-type approximations results for continuous fuzzy-number-valued functions which improve several previous ones. We use alternative techniques adapted from Interval Analysis which ... -
Joint second-order parameter estimation for spatio-temporal log-Gaussian Cox processes
Springer (2018)We propose a new fitting method to estimate the set of second-order parameters for the class of homogeneous spatio-temporal log-Gaussian Cox point processes. With simulations, we show that the proposed minimum contrast ... -
Jugar, competir, entrenar: aprendiendo técnicas matemáticas
Sociedad Canaria Isaac Newton de Profesores de Matemáticas (2019)Uno de los objetivos más importantes, tanto en los últimos cursos de educación secundaria como en los primeros cursos de matemáticas en los grados de ingeniería o los de ciencias experimentales y ciencias económicas, es ...
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Key factors affecting people’s unwillingness to be confined during the COVID-19 pandemic in Spain: a large-scale population study
Springer Nature Limited (2021-09-20)Population confinements have been one of the most widely adopted non-pharmaceutical interventions (NPIs) implemented by governments across the globe to help contain the spread of the SARS-CoV-2 virus. While confinement ...
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Korovkin-Type Results on Convergence of Sequences of Positive Linear Maps on Function Spaces
Springer Verlag (2019-11-11)In this paper, we deal with the convergence of sequences of positive linear maps to a (not assumed to be linear) isometry on spaces of continuous functions. We obtain generalizations of known Korovkin-type results and ...
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Landau's theorem on conjugacy classes for normal subgroups
World Scientific (2016-10-10)Landau’s theorem on conjugacy classes asserts that there are only finitely many finite groups, up to isomorphism, with exactly k conjugacy classes for any positive integer k. We show that, for any positive integers n and ...
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Lattice paths with given number of turns and semimodules over numerical semigroups
Springer US (2014-06)Let Γ =< α, ß> be a numerical semigroup. In this article we consider several relations between the so-called Γ -semimodules and lattice paths from (0, α) to (ß,0): we investigate isomorphism classes of Γ -semimodules as ...
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LCM Lattices and Stanley Depth: A First Computational Approach
Taylor & Francis (2015-10)Let K be a field, and let S D K [X1, . . . ,Xn] be the polynomial ring. Let / be a monomial ideal of S with up to 5 generators. In this paper, we present a computational experiment which allows us to prove that depthS ...
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Lebesgue regularity for differential difference equations with fractional damping
Wiley (2018)We provide necessary and sufficient conditions for the existence and unique-ness of solutions belonging to the vector-valued space of sequences �(Z, X) forequations that can be modeled in the formΔu(n)+Δu(n)=Au(n)+G(u)(n)+ ...
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Lebesgue regularity for nonlocal time-discrete equations with delays
De Gruyter (2018-06-26)In this work, we provide a new and effective characterization for the existence and uniqueness of solutions for nonlocal time-discrete equations with delays, in the setting of vector-valued Lebesgue spaces of ...
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Ley de reciprocidad cuadrática y aplicaciones
Asociación Nacional de Estudiantes de Matemáticas (2023)El objetivo de este trabajo es introducir todos los conceptos y teoremas necesarios para poder dar una demostración rigurosa y autocontenida de la ley de reciprocidad cuadrática y ver cómo puede ser una herramienta útil ...
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Lineability within Probability Theory settings
Springer (2016)The search of lineability consists on nding large vector spaces of mathematical objects with special properties. Such examples have arisen in the last years in a wide range of settings such as in real and complex analysis, ...
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Linear and Multilinear Isometries in a Noncompact Framework
Springer (2021-03-19)Both classical linear and multilinear isometries defined between subalgebras of bounded continuous functions on (complete) metric spaces are studied. Particularly, we prove that certain such subalgebras, including the ...
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Linear chaos for the Quick-Thinking-Driver model
Springer (2016)In recent years, the topic of car-following has experimented an increased importance in traffic engineering and safety research. This has become a very interesting topic because of the development of driverless cars (Google ...
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Linear dynamics of semigroups generated by differential operators
De Gruyter (2017)During the last years, several notions have been introduced for describing the dynamical behavior of linear operators on infinite-dimensional spaces, such as hypercyclicity, chaos in the sense of Devaney, chaos in the ...
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Linear optics only allows every possible quantum operation for one photon or one port
Elsevier (2017)We study the evolution of the quantum state of n photons in m different modes when they go through a lossless linear optical system. We show that there are quantum evolution operators U that cannot be built with linear ...
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Liouville’s equations for random systems
Taylor and Francis (2021-10-03)Given a random system, a Liouville’s equation is an exact partial differential equation that describes the evolution of the probability density function of the solution. In this paper, we derive Liouville’s equations for ...
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List Decoding of Matrix-Product Codes from nested codes: an application to Quasi-Cyclic codes
American Institute of Mathematical Sciences (2012-01-30)A list decoding algorithm for matrix-product codes is provided when C1, . . . , Cs are nested linear codes and A is a non-singular by columns matrix. We estimate the probability of getting more than one codeword as output ...
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List decoding of repeated codes
Springer (2013-08)Assuming that we have a soft-decision list decoding algorithm of a linear code, a new hard-decision list decoding algorithm of its repeated code is proposed in this article. Although repeated codes are not used for ...
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Local and 2-local isometries between absolutely continuous function spaces
Element d.o.o. (2021-12-01)In this paper we give a complete description of local and 2-local isometries defined between spaces of scalar-valued absolutely continuous functions on arbitrary (not necessarily compact) subsets of the real line with at ...
