Problem 5. Let N = {(x, y) E R² | 0 < y < 1- x²}, and define the divergence form operator Lu : = -(a"u;)j, 3 x2 + y (a“) = + Y 3 Prove that if Aı is the principal eigenvalue for the Dirichlet problem associated to L on N, in the weak sense, then A1 .

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Problem 5. Let N = {(x, y) E R² | 0 < y < 1– x²}, and define the divergence form operator
Lu : = -(a³u;)j,
x² + Y
(a*) = (', *:")
3
x² + Y
3
Prove that if ı is the principal eigenvalue for the Dirichlet problem associated to L on N,
in the weak sense, then A1 > 5.
1
Transcribed Image Text:Problem 5. Let N = {(x, y) E R² | 0 < y < 1– x²}, and define the divergence form operator Lu : = -(a³u;)j, x² + Y (a*) = (', *:") 3 x² + Y 3 Prove that if ı is the principal eigenvalue for the Dirichlet problem associated to L on N, in the weak sense, then A1 > 5. 1
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