Some remarks on the optimization of eigenvalue problems involving the p-Laplacian
Some remarks on the optimization of eigenvalue problems involving the p-Laplacian
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发表时间:
2008
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通讯作者:
W. Pielichowski
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作者:
W. Pielichowski
Given a bounded domain (Omega subset mathbb{R}^n), numbers (p gt 1), (alpha geq 0) and (A in [0,|Omega |]), consider the optimization problem: find a subset (D subset Omega ), of measure (A), for which the first eigenvalue of the operator (umapsto - ext{div} (|
abla u|^{p-2}
abla u)+ alpha chi_D |u|^{p-2}u ) with the Dirichlet boundary condition is as small as possible. We show that the optimal configuration (D) is connected with the corresponding positive eigenfunction (u) in such a way that there exists a number (tgeq 1) for which (D={u leq t}). We also give a new proof of symmetry of optimal solutions in the case when (Omega ) is Steiner symmetric and (p = 2).