Zobrazeno 1 - 10
of 10 986
pro vyhledávání: '"López-Martínez, A."'
Autor:
Lopez-Martinez, Daniel
Generative AI (GenAI) models have demonstrated remarkable capabilities in a wide variety of medical tasks. However, as these models are trained using generalist datasets with very limited human oversight, they can learn uses of medical products that
Externí odkaz:
http://arxiv.org/abs/2406.16455
We study for a dynamical system $f:X\longrightarrow X$ some of the principal topological recurrence-kind properties with respect to the induced maps $\overline{f}:\mathcal{K}(X)\longrightarrow\mathcal{K}(X)$, on the hyperspace of non-empty compact su
Externí odkaz:
http://arxiv.org/abs/2406.15826
Autor:
Fernández, Santiago, Bailón-Martínez, J. Alfonso, Galeote-Cazorla, Juan E., López-Martínez, F. Javier
We introduce and characterize the operational diversity order (ODO) in fading channels, as a proxy to the classical notion of diversity order at any arbitrary operational signal-to-noise ratio (SNR). Thanks to this definition, relevant insights are b
Externí odkaz:
http://arxiv.org/abs/2405.09336
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, New, Wee Kiat, Xu, Hao, Chae, Chan-Byoung
This paper investigates the performance of physical layer security (PLS) in fluid antenna-aided communication systems under arbitrary correlated fading channels. In particular, it is considered that a single fixed-antenna transmitter aims to send con
Externí odkaz:
http://arxiv.org/abs/2402.05722
We construct continuous (and even invertible) linear operators acting on Banach (even Hilbert) spaces whose restrictions to their respective closed linear subspaces of chain recurrent vectors are not chain recurrent operators. This construction compl
Externí odkaz:
http://arxiv.org/abs/2402.01377
Autor:
López-Martínez, Antoni
Publikováno v:
Results in Mathematics, Volume 79, article number 185, (2024)
Motivated by recent investigations of Sophie Grivaux and \'Etienne Matheron on the existence of invariant measures in Linear Dynamics, we introduce the concept of locally bounded orbit for a continuous linear operator $T:X\longrightarrow X$ acting on
Externí odkaz:
http://arxiv.org/abs/2401.13367
Autor:
López-Martínez, Javier, Blanco-Claraco, José Luis, Pérez-Alonso, José, Callejón-Ferre, Ángel Jesús
In Mediterranean countries of Southern Europe, the climatic conditions are usually favourable to cultivate greenhouse vegetables but not always for workers. The aim of this study was to design a network of weather stations capable of gathering data o
Externí odkaz:
http://arxiv.org/abs/2401.13420
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, Chae, Chan-Byoung, Tong, Kin-Fai, Zhang, Yangyang
This letter investigates the application of the emerging fluid antenna (FA) technology in multiuser communication systems when side information (SI) is available at the transmitters. In particular, we consider a K-user dirty multiple access channel (
Externí odkaz:
http://arxiv.org/abs/2309.07604
Autor:
López-Martínez, Antoni, Menet, Quentin
We solve in the negative two open problems, related to the linear and topological structure of the set of recurrent vectors, asked by Sophie Grivaux, Alfred Peris and the first author of this paper. Firstly, we show that there exist recurrent operato
Externí odkaz:
http://arxiv.org/abs/2309.07573
Autor:
Ghadi, Farshad Rostami, Wong, Kai-Kit, Lopez-Martinez, F. Javier, Chae, Chan-Byoung, Tong, Kin-Fai, Zhang, Yangyang
This paper investigates the performance of a singleuser fluid antenna system (FAS), by exploiting a class of elliptical copulas to describe the structure of dependency amongst the fluid antenna ports. By expressing Jakes' model in terms of the Gaussi
Externí odkaz:
http://arxiv.org/abs/2309.07506