Listar MA - Artículos por fecha de publicación
Mostrando ítems 1-20 de 128
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Automated generation of contrapuntal musical compositions using probabilistic logic in Derive
Aguilera-Venegas, Gabriel; Galán-García, José Luis; Madrid, Rafael; Martínez, Antonio Manuel; Padilla-Domínguez, Yolanda
; Rodríguez-Cielos, Pedro[et al.] (Elsevier (Mathematics and computers in simulation), 2010)
In this work, we present a new application developed in Derive 6 to compose counterpoint for a given melody (“cantus firmus”). The result is non-deterministic, so different counterpoints can be generated for a fixed melody, ... -
Using the Chu Construction for generalizing formal concept analysis
Antoni, Lubomir; Cabrera, Inma P.; Kracji, Stanislav; Krídlo, Ondrej; Ojeda-Aciego, Manuel (2015-11-23)
El objetivo de este artículo es mostrar la conexión entre generalizaciones de Análisis de Conceptos Formales y la construcción de Chu sobre la categoría ChuCors de contextos formales y correspondencias de Chu. Todas las ... -
The hyperdeterminant vanishes on all but two Schur functors
Tocino-Sánchez, Alicia (Elsevier, 2016)
We recall the notion of hyperdeterminant of a multidimensional matrix (tensor). We prove that if we restrict the hyperdeterminant to a skew-symmetric tensor p V ⊆ V ⊗p with p ≥ 3 then it vanishes. The hyperdeterminant ... -
Evolution algebras of arbitrary dimension and their decompositions
Cabrera-Casado, Yolanda; Siles-Molina, Mercedes; Velasco Collado, Mª Victoria (Elsevier, 2016)
We study evolution algebras of arbitrary dimension. We analyze in deep the notions of evolution subalgebras, ideals and non-degeneracy and describe the ideals generated by one element and characterize the simple evolution ... -
A HLLC scheme for Ripa model
Sánchez-Linares, Carlos; Morales de Luna, Tomás; Castro-Díaz, Manuel Jesús (Elsevier, 2016-01-01)
We consider the one-dimensional system of shallow-water equations with horizontal temperature gradients (the Ripa system). We derive a HLLC scheme for Ripa system which falls into the theory of path-conservative approximate ... -
The hyperdeterminant vanishes on all but two Schur functors
Tocino-Sánchez, Alicia (Elsevier, 2016-03-15)
We recall the notion of hyperdeterminant of a multidimensional matrix (tensor). We prove that if we restrict the hyperdeterminant to a skew-symmetric tensor with then it vanishes. The hyperdeterminant also vanishes when ... -
Uncertainty quantification in tsunami modeling using multi-level Monte Carlo finite volume method
Sánchez-Linares, Carlos; De-la-Asunción-Hernández, Marc; Castro-Díaz, Manuel Jesús; González-Vida, José Manuel; Macías-Sánchez, Jorge; Mishra, Siddhartha[et al.] (SpringerOpen, 2016-06-08)
Shallow-water type models are commonly used in tsunami simulations. These models contain uncertain parameters like the ratio of densities of layers, friction coefficient, fault deformation, etc. These parameters are modeled ... -
The cycline subalgebra of a Kumjian-Pask algebra.
Clark, Lisa Orloff; Gil-Canto, Cristóbal; Nasr-Isfahani, Alireza (American Mathematical Society, 2016-11-21)
Let $\Lambda$ be a row-finite higher-rank graph with no sources. We identify a maximal commutative subalgebra $\mathcal{M}$ inside the Kumjian-Pask algebra ${\rm KP}_R(\Lambda)$. We also prove a generalized Cuntz-Krieger ... -
LiDARgrammetry: A New Method for Generating Synthetic Stereoscopic Products from Digital Elevation Models
Rodríguez-Cielos, Ricardo; Galán-García, José Luis; Padilla-Domínguez, Yolanda; Rodríguez-Cielos, Pedro; Bello-Patricio, Ana Belén; López-Medina, José Antonio[et al.] (MDPI, 2017)
There are currently several new technologies being used to generate digital elevation models that do not use photogrammetric techniques. For example, LiDAR (Laser Imaging Detection and Ranging) and RADAR (RAdio Detection ... -
Classification of three-dimensional evolution algebras
Cabrera-Casado, Yolanda; Siles-Molina, Mercedes; Velasco Collado, Mª Victoria (Elsevier, 2017)
We classify three dimensional evolution algebras over a field having characteristic different from 2 and in which there are roots of orders 2, 3 and 7. -
Best rank k approximation for binary forms.
Ottaviani, Giorgio; Tocino-Sánchez, Alicia (Springer Nature, 2017-09-11)
In the tensor space SymdR2 of binary forms we study the best rank k approximation problem. The critical points of the best rank 1 approximation problem are the eigenvectors and it is known that they span a hyperplane. ... -
A Hankel matrix acting on spaces of analytic functions.
Girela-Álvarez, Daniel; Merchán-Álvarez, Noel (Springer, 2017-11-02)
If μ is a positive Borel measure on the interval [0, 1) we let H_μ be the Hankel matrix { μ_{n,k} }_{n,k} with entries μ_{n,k} =μ_{n+k}, where, for μ_n denotes the moment of order n of μ. This matrix induces formally an ... -
A generalized Hilbert operator acting on conformally invariant spaces
Girela-Álvarez, Daniel; Merchán-Álvarez, Noel (Springer Basel AG, 2018)
If μ is a positive Borel measure on the interval [0,1), we let H_μ be the Hankel matrix with entries μ_{n,k}=μ_{n+k}, where μ_n denotes the moment of order n of the measure μ. This matrix formally induces an operator on ... -
Best rank-k approximations for tensors: generalizing Eckart–Young
Draisma, Jan; Ottaviani, Giorgio; Tocino-Sánchez, Alicia (Springer Link, 2018)
Given a tensor f in a Euclidean tensor space, we are interested in the critical points of the distance function from f to the set of tensors of rank at most k, which we call the critical rank-at-most-k tensors for f. When ... -
Preserving fuzzy subgroups and indistinguishability operators
Bejines-López, Carlos; Chasco Ugarte, María Jesús; Elorza, Jorge; Recasens, Jordi (Elsevier, 2018)
In this paper we study the class of all fuzzy subgroups defined with respect to a given t-norm on a fixed group. We find necessary and sufficient conditions over two t-norms to guarantee that the class of all fuzzy subgroups ... -
A Geo[X]/G[X]/1 retrial queueing system with removal work and total renewal discipline
Atencia-McKillop, Iván; Galán-García, José Luis; Aguilera-Venegas, Gabriel; Rodríguez-Cielos, Pedro; Galán-García, María Ángeles (Elsevier, 2018-02)
In this paper we consider a discrete-time retrial queueing system with batch arrivals of geometric type and general batch services. The arriving group of customers can decide to go directly to the server expelling out of ... -
Mean Lipschitz spaces and a generalized Hilbert operator.
Merchán-Álvarez, Noel (Springer, 2018-02-28)
If μ is a positive Borel measure on the interval [0, 1) we let H_μ be the Hankel matrix H_μ={ μ_{n,k} }_{n,k} with entries μ_{n,k} =μ_{n+k} where μ_n denotes the moment of order n of μ. This matrix induces formally an ... -
The commutative core of a Leavitt path algebra.
Gil-Canto, Cristóbal; Nasr-Isfahani, Alireza (Elsevier, 2018-06-30)
For any unital commutative ring R and for any graph E, we identify the commutative core of the Leavitt path algebra of E with coefficients in R, which is a maximal commutative subalgebra of the Leavitt path algebra. ... -
Leavitt path algebras of Cayley graphs C_n^j.
Abrams, Gene; Erickson, Stefan; Gil-Canto, Cristóbal (Springer Nature, 2018-09-15)
Let n be a positive integer. For each 0 <= j <= n-1 we let C_n^j denote the Cayley graph of the cyclic group Zn with respect to the subset {1,j}. Utilizing the Smith Normal Form process, we give an explicit description of ... -
Hankel matrices acting on the Hardy space H1 and on Dirichlet spaces.
Girela-Álvarez, Daniel; Merchán-Álvarez, Noel (Springer, 2018-12-03)
If μ is a positive Borel measure on the interval [0, 1) we let H_μ be the Hankel matrix H_μ={ μ_{n,k} }_{n,k} with entries μ_{n,k} =μ_{n+k} where μ_n denotes the moment of order n of μ. This matrix induces formally an ...