Zobrazeno 1 - 10
of 5 875
pro vyhledávání: '"Oliveira, A. J."'
The impact of several $``\text{flavours}"$ of free-stream turbulence (FST) on the structural response of a cantilevered cylinder, subjected to a turbulent cross-flow is investigated. At high enough Reynolds numbers, the cylinder generates a spectrall
Externí odkaz:
http://arxiv.org/abs/2411.13328
Autor:
de Oliveira, Mário J.
We propose a stochastic dynamics to be associated to a deterministic motion defined by a set of first order differential equation. The transitions that defined the stochastic dynamics are unidirectional and the rates are equal to the absolute value o
Externí odkaz:
http://arxiv.org/abs/2411.07824
In this paper, we investigate the convergence of asymptotic systems in non-autonomous Cohen--Grossberg neural network models, which include both infinite discrete time-varying and distributed delays. We derive stability results under conditions where
Externí odkaz:
http://arxiv.org/abs/2410.15867
We study the thermodynamic behavior of hard rigid rods of size $k$ (i.e., $k$-mers) on four- and six-coordinated Husimi lattices (HLs), respectively built with squares (square HL) and triangles (triangular HL). In both lattices, dimers ($k=2$) and tr
Externí odkaz:
http://arxiv.org/abs/2410.00994
Autor:
de Oliveira, Mário J.
We derive the expression for the entropy production for stochastic dynamics defined on a continuous space of states containing unidirectional transitions. The expression is derived by taking the continuous limit of a stochastic dynamics on a discrete
Externí odkaz:
http://arxiv.org/abs/2409.02321
Autor:
Tomè, Tânia, de Oliveira, Mário J.
We investigate the thermodynamics as well as the population dynamics of ecosystems based on a stochastic approach in which the number of individuals of the several species of the ecosystem are treated as stochastic variables. The several species are
Externí odkaz:
http://arxiv.org/abs/2405.19535
Autor:
Tome, Tânia, de Oliveira, Mário J.
We propose an expression for the production of entropy for system described by a stochastic dynamics which is appropriate for the case where the reverse transition rate vanishes but the forward transition is nonzero. The expression is positive define
Externí odkaz:
http://arxiv.org/abs/2405.06751
Publikováno v:
Phys. Rev. E 109, L042102 (2024)
Two-dimensional (2D) KPZ growth is usually investigated on substrates of lateral sizes $L_x=L_y$, so that $L_x$ and the correlation length ($\xi$) are the only relevant lengths determining the scaling behavior. However, in cylindrical geometry, as we
Externí odkaz:
http://arxiv.org/abs/2404.19516
In the present paper, we investigate both the global exponential stability and the existence of a periodic solution of a general differential equation with unbounded distributed delays. The main stability criterion depends on the dominance of the non
Externí odkaz:
http://arxiv.org/abs/2309.10824
Autor:
de Oliveira, Mário j.
We show that the dynamics of a quantum system can be represented by the dynamics of an underlying classical systems obeying the Hamilton equations of motion. This is achieved by transforming the phase space of dimension $2n$ into a Hilbert space of d
Externí odkaz:
http://arxiv.org/abs/2308.00151