Generalization of unfolding operator for highly oscillating smooth boundary domains and homogenization

S Aiyappan, AK Nandakumaran, R Prakash - Calculus of Variations and …, 2018‏ - Springer
Unfolding operators have been introduced and used to study homogenization problems.
Initially, they were introduced for problems with rapidly oscillating coefficients and porous …

[HTML][HTML] Homogenization of a nonlinear monotone problem with nonlinear Signorini boundary conditions in a domain with highly rough boundary

A Gaudiello, T Mel'Nyk - Journal of Differential Equations, 2018‏ - Elsevier
In this paper, we consider a domain Ω ε⊂ RN, N≥ 2, with a very rough boundary depending
on ε. For instance, if N= 3 Ω ε has the form of a brush with an ε-periodic distribution of thin …

Junction problem for thin elastic and volume rigid inclusions in elastic body

AM Khludnev - … Transactions of the Royal Society A, 2022‏ - royalsocietypublishing.org
The article concerns a junction problem for two-dimensional elastic body with a thin elastic
inclusion and a volume rigid inclusion. It is assumed that the inclusions have a common …

Semi-linear optimal control problem on a smooth oscillating domain

S Aiyappan, AK Nandakumaran… - Communications in …, 2020‏ - World Scientific
We demonstrate the asymptotic analysis of a semi-linear optimal control problem posed on a
smooth oscillating boundary domain in the present paper. We have considered a more …

Optimal control problem in a domain with branched structure and homogenization

S Aiyappan, AK Nandakumaran - Mathematical Methods in the …, 2017‏ - Wiley Online Library
We consider a linear parabolic problem in a thick junction domain which is the union of a
fixed domain and a collection of periodic branched trees of height of order 1 and small width …

Optimal control of rigidity parameters of thin inclusions in composite materials

AM Khludnev, L Faella, C Perugia - Zeitschrift für angewandte Mathematik …, 2017‏ - Springer
In the paper, an equilibrium problem for an elastic body with a thin elastic and a volume rigid
inclusion is analyzed. It is assumed that the thin inclusion conjugates with the rigid inclusion …

A two-dimensional electrostatic model of interdigitated comb drive in longitudinal mode

A Gaudiello, M Lenczner - SIAM Journal on Applied Mathematics, 2020‏ - SIAM
A periodic homogenization model of the electrostatic equation is constructed for a comb
drive with a large number of fingers and whose mode of operation is in-plane and …

[HTML][HTML] Asymptotic approximation for the solution to a semi-linear parabolic problem in a thick junction with the branched structure

TA Mel'nyk - Journal of Mathematical Analysis and Applications, 2015‏ - Elsevier
We consider a semi-linear parabolic problem in a thick junction Ω ε, which is the union of a
domain Ω 0 and a lot of joined thin trees situated ε-periodically along some manifold on the …

On critical parameters in homogenization of perforated domains by thin tubes with nonlinear flux and related spectral problems

D Gómez, M Lobo, ME Pérez… - … Methods in the …, 2015‏ - Wiley Online Library
Let uϵ be the solution of the Poisson equation in a domain perforated by thin tubes with a
nonlinear Robin‐type boundary condition on the boundary of the tubes (the flux here being …

[HTML][HTML] Exact controllability for evolutionary imperfect transmission problems

L Faella, S Monsurrò, C Perugia - Journal de Mathématiques Pures et …, 2019‏ - Elsevier
In this paper we study the asymptotic behaviour of an exact controllability problem for a
second order linear evolution equation defined in a two-component composite with ε …