activity
20202026
most citedThe effect of a small bounded noise on the hyperbolicity for autonomous semilinear differential equations

5 citations · 6 across the 9 of their papers we have counts for

collaborators

9 papers

math.DS2026

SIR model with random diffusion, reinfection, and random transmission: exponential attractors and spread of the disease

Tomás Caraballo, Javier López-de-la-Cruz, Alexandre N. Oliveira-Sousa +1

We introduce a stochastic SIR-type partial differential equation model incorporating random diffusion, reinfection, vital dynamics, and a randomly varying transmission rate. For th…

math.DS2025

Minimal jointly uniform attractor for nonautonomous random dynamical systems

Pedro Catuogno, Alexandre do Nascimento Oliveira-Sousa, Paulo Ruffino

We introduce a notion of minimal uniform attractor for nonautonomous random dynamical systems, which depends jointly on time and on a random parameter. Several examples are provide…

math.DS2025

invariant, stable and inertial manifolds for non-autonomous dynamical systems

Radosław Czaja, Piotr Kalita, Alexandre N. Oliveira-Sousa

We use the version of the Lyapunov--Perron method operating on individual solutions to investigate the existence of invariant manifolds for non-autonomous dynamical systems, focusi…

math.DS2024

SIR models with vital dynamics, reinfection and randomness to investigate the spread of infectious diseases

Javier López-de-la-Cruz, Alexandre N. Oliveira-Sousa

We investigate SIR models with vital dynamics, reinfection, and randomness at the transmission coefficient and recruitment rate. Initially, we conduct an extensive analysis of the…

math.DS2021

New notion of nonuniform exponential dichotomy with applications to the theory of pullback and forward attractors

Jose Antonio Langa, Rafael Obaya, Alexandre N. Oliveira-Sousa

In this work we study nonuniform exponential dichotomies and existence of pullback and forward attractors for evolution processes associated to nonautonomous differential equations…

math.DS2021

Continuity and topological structural stability for nonautonomous random attractors

Tomás Caraballo, Alexandre N. Carvalho, José A. Langa +1

In this work, we study continuity and topological structural stability of attractors for nonautonomous random differential equations obtained by small bounded random perturbations…

math.AP2021★ 1 cited

A Unified Theory for Inertial Manifolds, Saddle Point Property and Exponential Dichotomy

Alexandre N. Carvalho, Phillipo Lappicy, Estefani M. Moreira +1

Inertial manifold theory, saddle point property and exponential dichotomy have been treated as different topics in the literature with different proofs. As a common feature, they a…

math.AP2020★ 5 cited

The effect of a small bounded noise on the hyperbolicity for autonomous semilinear differential equations

Tomás Caraballo, Alexandre N. de Carvalho, José A. Langa +1

In this work we study permanence of hyperbolicity for autonomous differential equations under nonautonomous random/stochastic perturbations. For the linear case, we study robustnes…

math.AP2020

Permanence of nonuniform nonautonomous hyperbolicity for infinite-dimensional differential equations

Tomás Caraballo, Alexandre N. Carvalho, José Antonio Langa +1

In this paper, we study stability properties of nonuniform hyperbolicity for evolution processes associated with differential equations in Banach spaces. We prove a robustness resu…