Listar Artículos de revista DEIM - EIMS Aldizkari artikuluak por título
Mostrando ítems 222-241 de 381
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Nonlinear stability in the spatial attitude motion of a satellite in a circular orbit
Cárcamo Díaz, Daniela Jacqueline; Palacián Subiela, Jesús Francisco
; Vidal Díaz, Claudio; Yanguas Sayas, Patricia (Society for Industrial and Applied Mathematics Publications, 2021)
Artículo / Artikulua 
The paper considers the attitude nonlinear stability analysis of the spatial satellite problem and takes it one step further. A study of the Lie (formal) stability is presented and long-time estimates related to the Lie ... -
Nonlinear stability of elliptic equilibria in Hamiltonian systems with exponential time estimates
Cárcamo Díaz, Daniela Jacqueline; Palacián Subiela, Jesús Francisco ; Vidal Díaz, Claudio; Yanguas Sayas, Patricia (American Institute of Mathematical Sciences (AIMS), 2021)
Artículo / Artikulua
In the framework of nonlinear stability of elliptic equilibria in Hamiltonian systems with n degrees of freedom we provide a criterion to obtain a type of formal stability, called Lie stability. Our result generalises ... -
Nonlinear trapping stiffness of mid-air single-axis acoustic levitators
Fushimi, Tatsuki; Hill, Thomas L.; Marzo Pérez, Asier ; Drinkwater, Bruce W. (American Institute of Physics, 2018)
Artículo / Artikulua
We describe and experimentally explore a nonlinear stiffness model of the trapping of a solid particle in a single-axis acoustic levitator. In contrast to the commonly employed linear stiffness assumption, our nonlinear ... -
Normalization through invariants in n-dimensional Kepler problems
Meyer, Kenneth Ray; Palacián Subiela, Jesús Francisco ; Yanguas Sayas, Patricia (Pleiades Publishing, 2018)
Artículo / Artikulua
We present a procedure for the normalization of perturbed Keplerian problems in n dimensions based on Moser regularization of the Kepler problem and the invariants associated to the reduction process. The approach allows ... -
Novel multivariate methods to track frequency shifts of neural oscillations in EEG/MEG recordings
Vidaurre, Carmen ; Gurunandan, Kshipra; Jamshidi Idaji, Mina; Nolte, Guido; Gómez Fernández, Marisol ; Villringer, Arno; Müller, Klaus Robert; Nikulin, Vadim V. (Elsevier, 2023)
Artículo / Artikulua
Instantaneous and peak frequency changes in neural oscillations have been linked to many perceptual, motor, and cognitive processes. Yet, the majority of such studies have been performed in sensor space and only occasionally ... -
The null space of fuzzy inclusion measures
Couso, Inés; Bustince Sola, Humberto ; Fernández Fernández, Francisco Javier ; Sánchez, Luciano (IEEE, 2019)
Artículo / Artikulua
Some formal relationships between the different axiomatic definitions of inclusion measure are analysed. In particular, the links between the different proposals about the null-space (the collection of pairs associated ... -
Numerical and experimental investigation of the stability of a drop in a single-axis acoustic levitator
Brizzotti Andrade, Marco Aurélio; Marzo Pérez, Asier (American Institute of Physics, 2019)
Artículo / Artikulua
Acoustic levitation can be employed to hold liquid drops in midair, enabling novel applications in X-ray scattering of proteins, amorphous crystallization of solutions, or contactless mixing. Multiple studies have characterized ... -
Nyström discretizations of boundary integral equations for the solution of 2D elastic scattering problems
Domínguez Baguena, Víctor ; Turc, Catalin (Elsevier, 2024)
Artículo / Artikulua
We present three high-order Nyström discretization strategies of various boundary integral equation formulations of the impenetrable time-harmonic Navier equations in two dimensions. One class of such formulations is ... -
Olfactory characterization and training in older adults: protocol study
Zambom Ferraresi, Fabíola ; Zambom Ferraresi, Fabrício ; Fernández Irigoyen, Joaquín ; Lachén Montes, Mercedes ; Cartas-Cejudo, Paz; Lasarte, Juan José; Casares, Noelia; Fernández, Secundino; Cedeño Veloz, Bernardo Abel; Maraví-Aznar, Enrique; Uzcanga-Lacabe, María Itziar; Galbete Jiménez, Arkaitz ; Santamaría, Enrique; Martínez Velilla, Nicolás (Frontiers Media, 2021)
Artículo / Artikulua
The aim of this article is to present the research protocol for a prospective cohort study that will assess the olfactory function and the effect of an intervention based on olfactory training in healthy very old adults ... -
On a 'philosophical' question about Banach envelopes
Albiac Alesanco, Fernando José ; Ansorena, José L.; Wojtaszczyk, Przemyslaw (Springer, 2021)
Artículo / Artikulua
We show how to construct non-locally convex quasi-Banach spaces X whose dual separates the points of a dense subspace of X but does not separate the points of X. Our examples connect with a question raised by Pietsch (Rev ... -
On a particular class of Meijer's G functions appearing in fractional calculus
Karp, D. B.; López García, José Luis (Academic Publications, 2018)
Artículo / Artikulua
In this paper we investigate the Meijer G-function G p+1,p+1 p,1 which, for certain parameter values, represents the Riemann-Liouville fractional integral of the Meijer-Nørlund function G p,p. p,0 The properties of this ... -
On admissible orders on the set of discrete fuzzy numbers for application in decision making problems
Riera, Juan Vicente; Massanet, Sebastia; Bustince Sola, Humberto ; Fernández Fernández, Francisco Javier (MDPI, 2021)
Artículo / Artikulua
The study of orders is a constantly evolving topic, not only for its interest from a theoretical point of view, but also for its possible applications. Recently, one of the hot lines of research has been the construction ... -
On admissible orders over closed subintervals of [0,1]
Santana, Fagner; Bedregal, Benjamin ; Viana, Petrucio; Bustince Sola, Humberto (Elsevier, 2020)
Artículo / Artikulua
In this paper, we make some considerations about admissible orders on the set of closed subintervals of the unit interval I[0,1], i.e. linear orders that refine the product order on intervals. We propose a new way to ... -
On certain subspaces of p for 0 < p ≤ 1 and their applications to conditional quasi-greedy bases in p-Banach spaces
Albiac Alesanco, Fernando José ; Ansorena, José L.; Wojtaszczyk, Przemyslaw (Springer, 2021)
Artículo / Artikulua
We construct for each 0<p≤1 an infinite collection of subspaces of ℓp that extend the example of Lindenstrauss (Bull. Acad. Polon. Sci. Sér. Sci. Math. Astronom. Phys. 12, 539–542, 1964) of a subspace of ℓ1 with no ... -
On co-orbital quasi-periodic motion in the three-body problem
Cors, Josep Maria; Palacián Subiela, Jesús Francisco ; Yanguas Sayas, Patricia (Society for Industrial and Applied Mathematics (SIAM), 2019)
Artículo / Artikulua
Within the framework of the planar three-body problem we establish the existence of quasi-periodic motions and KAM 4-tori related to the co-orbital motion of two small moons about a large planet where the moons move in ... -
On fixed point theory in partially ordered sets and an application to asymptotic complexity of algorithms
Estevan Muguerza, Asier ; Miñana, Juan José; Valero, Óscar (Springer, 2019)
Artículo / Artikulua
The celebrated Kleene fixed point theorem is crucial in the mathematical modelling of recursive specifications in Denotational Semantics. In this paper we discuss whether the hypothesis of the aforementioned result can be ... -
On fuzzy implications derived from general overlap functions and their relation to other classes
Pinheiro, Jocivania; Santos, Helida; Pereira Dimuro, Graçaliz; Bedregal, Benjamin ; Santiago, Regivan; Fernández Fernández, Francisco Javier ; Bustince Sola, Humberto (MDPI, 2023)
Artículo / Artikulua
There are distinct techniques to generate fuzzy implication functions. Despite most of them using the combination of associative aggregators and fuzzy negations, other connectives such as (general) overlap/grouping ... -
On some classes of directionally monotone functions
Bustince Sola, Humberto ; Mesiar, Radko; Kolesárová, Anna; Pereira Dimuro, Graçaliz ; Fernández Fernández, Francisco Javier ; Díaz, Irene; Montes Rodríguez, Susana (Elsevier, 2020)
Artículo / Artikulua
In this work we consider some classes of functions with relaxed monotonicity conditions generalizing some other given classes of fusion functions. In particular, directionally increasing aggregation functions (called also ... -
On some classes of nullnorms and h-pseudo homogeneity
Lima, Lucélia; Bedregal, Benjamin ; Rocha, Marcus; Castillo López, Aitor; Fernández Fernández, Francisco Javier ; Bustince Sola, Humberto (Elsevier, 2022)
Artículo / Artikulua
Nullnorms are aggregation functions which generalize t-norms and t-conorms. For each nullnorm there exists an annihilator element such that, below it, the function behaves like a t-conorm, and, above it, like a t-norm. ... -
On the nonlinear stability of the triangular points in the circular spatial restricted three-body problem
Cárcamo Díaz, Daniela Jacqueline; Palacián Subiela, Jesús Francisco ; Vidal Díaz, Claudio; Yanguas Sayas, Patricia (Pleiades Publishing, 2020)
Artículo / Artikulua
The well-known problem of the nonlinear stability of L4 and L5 in the circular spatial restricted three-body problem is revisited. Some new results in the light of the concept of Lie (formal) stability are presented. In ...
