Singularly perturbed boundary value problems

M Dalla Riva, M Lanza de Cristoforis… - A Functional Analytic …, 2021 - Springer
This book is the first introductory and self-contained presentation of a method for the
analysis of singularly perturbed boundary value problems that we have called the Functional …

Perturbation analysis of the effective conductivity of a periodic composite

P Luzzini, P Musolino - Networks and Heterogeneous Media, 2020 - research.unipd.it
We consider the effective conductivity λeff of a periodic two-phase composite obtained by
introducing into an infinite homogeneous matrix a periodic set of inclusions of a different …

Shape analyticity and singular perturbations for layer potential operators

M Dalla Riva, P Luzzini, P Musolino - … : Mathematical Modelling and …, 2022 - esaim-m2an.org
We study the effect of regular and singular domain perturbations on layer potential operators
for the Laplace equation. First, we consider layer potentials supported on a diffeomorphic …

Series expansions for the solution of the Dirichlet problem in a planar domain with a small hole

M Dalla Riva, P Musolino, SV Rogosin - Asymptotic Analysis, 2015 - content.iospress.com
We consider the Dirichlet problem for the Laplace equation in a planar domain with a small
hole. The diameter of the hole is proportional to a real parameter ε and we denote by u ε the …

Boundary value problems of Robin type for the Brinkman and Darcy–Forchheimer–Brinkman systems in Lipschitz domains

M Kohr, ML de Cristoforis, WL Wendland - Journal of Mathematical Fluid …, 2014 - Springer
The purpose of this paper is to study boundary value problems of Robin type for the
Brinkman system and a semilinear elliptic system, called the Darcy–Forchheimer–Brinkman …

Dependence of effective properties upon regular perturbations

M Dalla Riva, P Luzzini, P Musolino… - Mechanics and Physics …, 2022 - Elsevier
In this survey, we present some results on the behavior of effective properties in presence of
perturbations of the geometric and physical parameters. We first consider the case of a …

Interaction of scales for a singularly perturbed degenerating nonlinear Robin problem

P Musolino, G Mishuris - Philosophical Transactions of …, 2022 - royalsocietypublishing.org
We study the asymptotic behaviour of solutions of a boundary value problem for the Laplace
equation in a perforated domain in R n, n≥ 3, with a (nonlinear) Robin boundary condition …

Stokes flow in a singularly perturbed exterior domain

MD Riva - Complex Variables and Elliptic Equations, 2013 - Taylor & Francis
We consider a pair of domains Ω b and Ω s in ℝ n and we assume that the closure of Ω b
does not intersect the closure of εΩ s for ε∈] 0, ε0 [. Then for a fixed ε∈] 0, ε0 [we consider a …

Hypersingularly perturbed loads for a nonlinear traction boundary value problem. A functional analytic approach

M Dalla Riva, M Lanza de Cristoforis - Eurasian Mathematical Journal, 2010 - mathnet.ru
Let Ωi and Ωo be two bounded open subsets of Rn containing 0. Let Gi be a (nonlinear) map
from∂ Ωi× Rn to Rn. Let ao be a map from∂ Ωo to the set Mn (R) of n× n matrices with real …

A QUASI-LINEAR HEAT TRANSMISSION PROBLEM IN A PERIODIC TWO-PHASE DILUTE COMPOSITE. A FUNCTIONAL ANALYTIC APPROACH.

ML De Cristoforis, P Musolino… - … on Pure & Applied …, 2014 - search.ebscohost.com
We consider a heat transmission problem for a composite material which fills the n-
dimensional Euclidean space. The composite has a periodic structure and consists of two …