Geodesic
On Homogenization for Non-Self-Adjoint Periodic Elliptic Operators on an Infinite Cylinder
Funkcionalʹnyj analiz i ego priloženiâ, Tome 50 (2016) no. 1, pp. 85-89.

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We consider an operator $\mathcal{A}^{\varepsilon}$ on $L_{2}(\mathbb{R}^{d_{1}}\times\mathbb{T}^{d_{2}})$ ($d_{1}$ is positive, while $d_{2}$ can be zero) given by $\mathcal{A}^{\varepsilon}=-\operatorname{div} A(\varepsilon^{-1}x_{1},x_{2})\nabla$, where $A$ is periodic in the first variable and smooth in a sense in the second. We present approximations for $(\mathcal{A}^{\varepsilon}-\mu)^{-1}$ and $\nabla(\mathcal{A}^{\varepsilon}-\mu)^{-1}$ (with appropriate $\mu$) in the operator norm when $\varepsilon$ is small. We also provide estimates for the rates of approximation that are sharp with respect to the order.
Keywords: homogenization, operator error estimates, periodic differential operators, effective operator, corrector. 
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N. N. Senik. On Homogenization for Non-Self-Adjoint Periodic Elliptic Operators on an Infinite Cylinder. Funkcionalʹnyj analiz i ego priloženiâ, Tome 50 (2016) no. 1, pp. 85-89. http://geodesic.mathdoc.fr/item/FAA_2016_50_1_a8/

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