Spectral analysis in thin tubes with axial heterogeneities

R Ferreira, ML Mascarenhas, A Piatnitski - Portugaliae Mathematica, 2015 - ems.press
In this paper, we present the 3D-1D asymptotic analysis of the Dirichlet spectral problem
associated with an elliptic operator with axial periodic heterogeneities. We extend to the 3D …

Norm resolvent approximation of thin homogeneous tubes by heterogeneous ones

CR de Oliveira, AA Verri - Communications in Contemporary …, 2017 - World Scientific
We study the operator− div (A (x)∇ ψ (x)) restricted to a waveguide Ω 𝜀⊂ ℝ 3, with
heterogeneous function A (x) constant in the longitudinal direction. The purpose is to obtain …

Spectral and Homogenization Problems

RAG Ferreira - 2011 - search.proquest.com
In this dissertation we will address two types of homogenization problems. The first one is a
spectral problem in the realm of lower dimensional theories, whose physical motivation is …

[PDF][PDF] Spectral and Homogenization Problems

RA Goncalves-Ferreira - 2011 - kilthub.cmu.edu
In this dissertation we will address two types of homogenization problems. The first one is a
spectral problem in the realm of lower dimensional theories, whose physical motivation is …