Zobrazeno 1 - 10
of 3 470
pro vyhledávání: '"Amigo, P."'
We develop a virtual element method to solve a convective Brinkman-Forchheimer problem coupled with a heat equation. This coupled model may allow for thermal diffusion and viscosity as a function of temperature. Under standard discretization assumpti
Externí odkaz:
http://arxiv.org/abs/2409.02252
In this paper we analyze a conforming virtual element method to approximate the eigenfunctions and eigenvalues of the two dimensional Oseen eigenvalue problem. We consider the classic velocity-pressure formulation which allows us to consider the dive
Externí odkaz:
http://arxiv.org/abs/2405.13657
Autor:
Yao, Mengyu, Gutierrez-Amigo, Martin, Roychowdhury, Subhajit, Errea, Ion, Fedorov, Alexander, Strocov, Vladimir N., Vergniory, Maia G., Felser, Claudia
The interplay between topology and superconductivity in quantum materials harbors rich physics ripe for discovery. In this study, we investigate the topological properties and superconductivity of the nonsymmorphic chiral superconductor NbGe$_2$ usin
Externí odkaz:
http://arxiv.org/abs/2403.03324
Publikováno v:
Solitons & Fractals, 178, 114305 (2024)
The objective of this paper is the construction of new indicators that can be useful to operate in the cryptocurrency market. These indicators are based on public data obtained from the blockchain network, specifically from the nodes that make up Bit
Externí odkaz:
http://arxiv.org/abs/2403.00770
Publikováno v:
Chaos 32 (featured article), 112101 (2022)
This is a review of group entropy and its application to permutation complexity. Specifically we revisit a new approach to the notion of complexity in time serie analysis, based on both permutation entropy and group entropy. As a result, the permutat
Externí odkaz:
http://arxiv.org/abs/2401.11340
Biased datasets are ubiquitous and present a challenge for machine learning. For a number of categories on a dataset that are equally important but some are sparse and others are common, the learning algorithms will favor the ones with more presence.
Externí odkaz:
http://arxiv.org/abs/2312.15307
We introduce non conforming virtual elements to approximate the eigenvalues and eigenfunctions of the two dimensional acoustic vibration problem. We focus our attention on the pressure formulation of the acoustic vibration problem in order to discret
Externí odkaz:
http://arxiv.org/abs/2312.13261
Autor:
Gutierrez-Amigo, Martin, Dangić, Ðorđe, Guo, Chunyu, Felser, Claudia, Moll, Philip J. W., Vergniory, Maia G., Errea, Ion
The charge-density wave (CDW) mechanism and resulting structure of the AV3Sb5 family of kagome metals has posed a puzzling challenge since their discovery four years ago. In fact, the lack of consensus on the origin and structure of the CDW hinders t
Externí odkaz:
http://arxiv.org/abs/2311.14112
Autor:
Pilarczyk, Paweł, Graff, Grzegorz, Amigó, José M., Tessmer, Katarzyna, Narkiewicz, Krzysztof, Graff, Beata
Publikováno v:
Chaos 33 (2023), 103140
We introduce an entropy-based classification method for pairs of sequences (ECPS) for quantifying mutual dependencies in heart rate and beat-to-beat blood pressure recordings. The purpose of the method is to build a classifier for data in which each
Externí odkaz:
http://arxiv.org/abs/2311.10752
In this paper we propose and analyze a virtual element method to approximate the natural frequencies of the acoustic eigenvalue problem with polygonal meshes that allow the presence of small edges. With the aid of a suitable seminorm that depends on
Externí odkaz:
http://arxiv.org/abs/2310.07955