Zobrazeno 1 - 10
of 364 753
pro vyhledávání: '"Filho FOR"'
Contraction analysis offers, through elegant mathematical developments, a unified way of designing observers for a general class of nonlinear systems, where the observer correction term is obtained by solving an infinite dimensional inequality that g
Externí odkaz:
http://arxiv.org/abs/2411.09237
Autor:
Filho, A. A. Araújo
In this work, we examine particle creation and the evaporation process in the context of Kalb-Ramond gravity. Specifically, we build upon two existing solutions from the literature \cite{yang2023static} and \cite{Liu:2024oas}, both addressing a stati
Externí odkaz:
http://arxiv.org/abs/2411.06841
This study focuses on Intelligent Fault Diagnosis (IFD) in rotating machinery utilizing a single microphone and a data-driven methodology, effectively diagnosing 42 classes of fault types and severities. The research leverages sound data from the imb
Externí odkaz:
http://arxiv.org/abs/2411.06299
A higher-order nonlinear Boussinesq system with a time-dependent boundary delay is considered. Sufficient conditions are presented to ensure the well-posedness of the problem, utilizing Kato's variable norm technique and the Fixed-Point Theorem. More
Externí odkaz:
http://arxiv.org/abs/2411.05191
In this work, we start by examining a spherically symmetric black hole within the framework of non-commutative geometry and apply a modified Newman-Janis method to obtain a new rotating solution. We then investigate its consequences, focusing on the
Externí odkaz:
http://arxiv.org/abs/2411.04674
Understanding and computing the entropic forces exerted by polymer chains under confinement is important for many reasons, from research to applications. However, extracting properties related to the free energy, such as the force (or pressure) on co
Externí odkaz:
http://arxiv.org/abs/2411.04017
Autor:
Filho, A. A. Araújo
We explore the gravitational properties of a nonlinear electromagnetic extension of an AdS Reissner-Nordstr\"om black hole. Our study begins with an analysis of the metric function and horizon structure, followed by calculations of the Ricci and Kret
Externí odkaz:
http://arxiv.org/abs/2410.23165
Autor:
Silva, Pablo Braz e, Capistrano-Filho, Roberto de A., Carvalho, Jackellyny Dassy do Nascimento, Ferreira, David dos Santos
This article addresses the stabilizability of a perturbed quintic defocusing Schr\"odinger equation in $\mathbb{R}^{3}$ at the $H^1$--energy level, considering the influence of a damping mechanism. More specifically, we establish a profile decomposit
Externí odkaz:
http://arxiv.org/abs/2410.16976
Autor:
Filho, A. A. Araújo
In this work, we investigate the gravitational signatures of a static nonlinear electromagnetic extension of the Kerr-Newman solution. We conduct an analysis of light propagation, focusing on the photon sphere, shadow formation, and geodesic trajecto
Externí odkaz:
http://arxiv.org/abs/2410.12060
Autor:
Bandeira, N. S., Chaves, Andrey, de Castro, L. V., Filho, R. N. Costa, Mirzakhani, M., Peeters, F. M., da Costa, D. R.
We present a systematic study of the energy levels of twisted bilayer graphene (tBLG) quantum dots (QD) and rings (QR) under an external perpendicular magnetic field. The confinement structures are modeled by a circular dot-like- and ring-like-shaped
Externí odkaz:
http://arxiv.org/abs/2410.12014