Well-Posedness and homogenization applied to a one-dimensional elliptic problem

Boa postura e homogeneização aplicada a um problema elíptico unidimensional

Authors

DOI:

https://doi.org/10.5902/2179460X94345

Keywords:

One-dimensional problem with rapidly oscillating coefficient, Well-Posedness, Asymptotic homogenization method, Effective coefficient

Abstract

This paper studies the mathematical homogenization of a one-dimensional elliptic problem with a rapidly oscillating coefficient. The analysis focuses on the well-posedness of the problem, ensuring existence, uniqueness, and stability of the solution through the Lax–Milgram theorem and the coercivity and continuity of the associated bilinear form. Using the asymptotic homogenization method, an asymptotic expansion in two scales is derived, and the convergence between the exact and homogenized solutions is discussed, demonstrating O(ε) convergence order. An example with analytical solutions is provided to illustrate the theoretical results.

Downloads

Download data is not yet available.

Author Biographies

Douglas Machado da Silva, Universidade Federal do Rio Grande do Sul

Holds a Bachelor's degree in Mathematics (Teaching Program – Daytime, 2021) and a Master's degree in Mathematical Modeling (2024), both from the Federal University of Pelotas (UFPel). Has experience in the area of mathematical modeling, with an emphasis on homogenization theory. Currently pursuing a Ph.D. in Applied Mathematics at the Federal University of Rio Grande do Sul (UFRGS).

Leslie Darien Pérez- Fernández, Universidade Federal de Pelotas

Holds a Bachelor's degree in Mathematics from the University of Havana (2001), a Master's degree in Mathematics from the University of Havana (2006), and a Ph.D. in Mathematics from the Institute of Cybernetics, Mathematics and Physics (2010 — validated by the National Commission of Scientific Degrees of Cuba). Received the Annual Award of the Cuban Academy of Sciences for Scientific Research Results in 2017 (as collaborator), 2009 (as main author), and 2006 (as coauthor).

Julián Bravo-Castillero, Universidad Nacional Autónoma de México

Dr. Julián Bravo Castillero is a Senior Researcher at the National Autonomous University of Mexico (Universidad Nacional Autónoma de México – UNAM), in the Institute of Applied Mathematics and Systems (Instituto de Investigaciones en Matemáticas Aplicadas y en Sistemas, IIMAS), at its Academic Unit in the state of Yucatán, Mérida, Yucatán, Mexico. He was a Full Professor and Senior Researcher at the Faculty of Mathematics and Computer Science of the University of Havana, Cuba, and one of the leaders of the Solid Mechanics Group at that institution.

References

Bakhvalov, N. & Panasenko, G. (1989). Homogenisation: Averaging Processes in Periodic Media: Mathematical Problems in the Mechanics of Composite Materials. Springer Netherlands, Dordrecht, 1 edition.

Bensoussan, A., Lions, J., & Papanicolau, G. (1978). Asymptotic Analysis for Periodic Structures. North Holland, New York, 1 edition.

Brezis, H. (2011). Functional Analysis, Sobolev Spaces and Partial Differential Equations. Springer, New York, 1 edition.

Cioranescu, D., Donato, P., & Roque, M. P. (2017). An Introduction to Second Order Partial Differential Equations: Classical and Variational Solutions. World Scientific Publishing Co. Pte. Ltd., New Jersey ; London ; Singapore, 1 edition.

Ciouranescu, D. & Donato, P. (1999). An Introduction to Homogenization. Oxford University Press, New York, 1 edition.

Costa, C. M. & dos Santos, R. W. (2010). Limitations of the homogenized cardiac monodomain model for the case of low gap junctional coupling. In 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology, pages 228–231.

Dimitrienko, Y. (1997). Heat mass transport and thermal stresses in porous charring materials. Transport in Porous Media, 27:143–170.

Larsson, S. & Thom´ee, V. (2009). Partial Differential Equations with Numerical Methods, volume 45 of Texts in Applied Mathematics. Springer, Berlin, Heidelberg, 1 edition.

Rudin, W. (1991). Functional analysis. Mc-Graw-Hill, New York, 2 edition.

Tartar, L. (2009). The General Theory of Homogenization: A Personalized Introduction. Springer, New York, 1 edition.

Published

2026-08-17

Issue

Section

Applied Mathematics

Most read articles by the same author(s)