Some recent work on elliptic systems from composite material
نویسنده
چکیده
Dedicated to Louis Nirenberg with admiration and friendship In this talk I describe some recent joint work with Louis. Please see [8] for details. Let D be a bounded domain in R n. For positive constants 0 < λ ≤ Λ < ∞, let A(λ, Λ) denote the class of measurable coefficients {A αβ ij (x)}, 1 ≤ α, β ≤ n, 1 ≤ i, j ≤ N, which satisfy |A αβ ij (x)| ≤ Λ ∀ α, β, i, j, and x ∈ D, (1) and D
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