Homogenization of a Periodic Parabolic Cauchy Problem in the Sobolev Space H1 (ℝd)

T. Suslina

Mathematical Modelling of Natural Phenomena (2010)

  • Volume: 5, Issue: 4, page 390-447
  • ISSN: 0973-5348

Abstract

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In L2(ℝd; ℂn), we consider a wide class of matrix elliptic second order differential operators 𝒜 ε with rapidly oscillating coefficients (depending on x/ε). For a fixed τ > 0 and small ε > 0, we find approximation of the operator exponential exp(− 𝒜 ετ) in the (L2(ℝd; ℂn) → H1(ℝd; ℂn))-operator norm with an error term of order ε. In this approximation, the corrector is taken into account. The results are applied to homogenization of a periodic parabolic Cauchy problem.

How to cite

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Suslina, T.. "Homogenization of a Periodic Parabolic Cauchy Problem in the Sobolev Space H1 (ℝd)." Mathematical Modelling of Natural Phenomena 5.4 (2010): 390-447. <http://eudml.org/doc/197654>.

@article{Suslina2010,
abstract = {In L2(ℝd; ℂn), we consider a wide class of matrix elliptic second order differential operators $\mathcal\{A\}$ε with rapidly oscillating coefficients (depending on x/ε). For a fixed τ > 0 and small ε > 0, we find approximation of the operator exponential exp(− $\mathcal\{A\}$ετ) in the (L2(ℝd; ℂn) → H1(ℝd; ℂn))-operator norm with an error term of order ε. In this approximation, the corrector is taken into account. The results are applied to homogenization of a periodic parabolic Cauchy problem. },
author = {Suslina, T.},
journal = {Mathematical Modelling of Natural Phenomena},
keywords = {periodic differential operators; parabolic Cauchy problem; homogenization; effective operator; corrector; exponential operator},
language = {eng},
month = {5},
number = {4},
pages = {390-447},
publisher = {EDP Sciences},
title = {Homogenization of a Periodic Parabolic Cauchy Problem in the Sobolev Space H1 (ℝd)},
url = {http://eudml.org/doc/197654},
volume = {5},
year = {2010},
}

TY - JOUR
AU - Suslina, T.
TI - Homogenization of a Periodic Parabolic Cauchy Problem in the Sobolev Space H1 (ℝd)
JO - Mathematical Modelling of Natural Phenomena
DA - 2010/5//
PB - EDP Sciences
VL - 5
IS - 4
SP - 390
EP - 447
AB - In L2(ℝd; ℂn), we consider a wide class of matrix elliptic second order differential operators $\mathcal{A}$ε with rapidly oscillating coefficients (depending on x/ε). For a fixed τ > 0 and small ε > 0, we find approximation of the operator exponential exp(− $\mathcal{A}$ετ) in the (L2(ℝd; ℂn) → H1(ℝd; ℂn))-operator norm with an error term of order ε. In this approximation, the corrector is taken into account. The results are applied to homogenization of a periodic parabolic Cauchy problem.
LA - eng
KW - periodic differential operators; parabolic Cauchy problem; homogenization; effective operator; corrector; exponential operator
UR - http://eudml.org/doc/197654
ER -

References

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