Continuous spectrum for a class of nonhomogeneous differential operators |
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Authors: | Mihai Mihăilescu Vicenţiu Rădulescu |
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Affiliation: | (1) Department of Mathematics, University of Craiova, 200585 Craiova, Romania;(2) Institute of Mathematics “Simion Stoilow” of the Romanian Academy, P.O. Box 1-764, 014700 Bucharest, Romania |
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Abstract: | We study the boundary value problem in Ω, u = 0 on ∂Ω, where Ω is a bounded domain in with smooth boundary, λ is a positive real number, and the continuous functions p 1, p 2, and q satisfy 1 < p 2(x) < q(x) < p 1(x) < N and for any . The main result of this paper establishes the existence of two positive constants λ0 and λ1 with λ0 ≤ λ1 such that any is an eigenvalue, while any is not an eigenvalue of the above problem. |
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Keywords: | 35D05 35J60 35J70 58E05 68T40 76A02 |
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