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- W2090915877 abstract "We prove a homogenization result for monotone operators by using the method of multiscale convergence. More precisely, we study the asymptotic behavior as<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mi>ε</mml:mi><mml:mo>→</mml:mo><mml:mn>0</mml:mn></mml:math>of the solutions<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:math>of the nonlinear equation<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mi>div</mml:mi><mml:mo></mml:mo><mml:msub><mml:mrow><mml:mi>a</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mrow><mml:mi>x</mml:mi><mml:mo>,</mml:mo><mml:mo>∇</mml:mo><mml:msub><mml:mrow><mml:mi>u</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mo>=</mml:mo><mml:mi>div</mml:mi><mml:mo></mml:mo><mml:msub><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:math>, where both<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mrow><mml:mi>a</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:math>and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mrow><mml:mi>b</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:math>oscillate rapidly on several microscopic scales and<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msub><mml:mrow><mml:mi>a</mml:mi></mml:mrow><mml:mrow><mml:mi>ε</mml:mi></mml:mrow></mml:msub></mml:math>satisfies certain continuity, monotonicity and boundedness conditions. This kind of problem has applications in hydrodynamic thin film lubrication where the bounding surfaces have roughness on several length scales. The homogenization result is obtained by extending the multiscale convergence method to the setting of Sobolev spaces<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:msubsup><mml:mrow><mml:mi>W</mml:mi></mml:mrow><mml:mrow><mml:mn>0</mml:mn></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>,</mml:mo><mml:mi>p</mml:mi></mml:mrow></mml:msubsup><mml:mo>(</mml:mo><mml:mi>Ω</mml:mi><mml:mo>)</mml:mo></mml:math>, where<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mn>1</mml:mn><mml:mo><</mml:mo><mml:mi>p</mml:mi><mml:mo><</mml:mo><mml:mi>∞</mml:mi></mml:math>. In particular we give new proofs of some fundamental theorems concerning this convergence that were first obtained by Allaire and Briane for the case<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mi>p</mml:mi><mml:mo>=</mml:mo><mml:mn>2</mml:mn></mml:math>." @default.
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- W2090915877 date "2011-01-01" @default.
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- W2090915877 title "Multiscale homogenization of a class of nonlinear equations with applications in lubrication theory and applications" @default.
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