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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

EXISTENCE, NONEXISTENCE AND MULTIPLICITY OF POSITIVE SOLUTIONS FOR THE POLY-LAPLACIAN AND NONLINEARITIES WITH ZEROS

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Author(s):
Iturriaga, Leonelo [1] ; Massa, Eugenio [2]
Total Authors: 2
Affiliation:
[1] Univ Tecn Federico Santa Maria, Dept Matemat, Ave Esparia 1680, Casilla 110-V, Valparaiso - Chile
[2] Univ Sao Paulo, Inst Ciencias Matemat & Comp, Dept Matemat, Campus Sao Carlos, Caixa Postal 668, BR-13560970 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS; v. 38, n. 8, p. 3831-3850, AUG 2018.
Web of Science Citations: 0
Abstract

In this paper we consider the equation (-Delta)(k) u = lambda f(x,u) + mu g(x,u) with Navier boundary conditions, in a bounded and smooth domain. The main interest is when the nonlinearity is nonnegative but admits a zero and f, g are, respectively, identically zero above and below the zero. We prove the existence of multiple positive solutions when the parameters lie in a region of the form lambda > (lambda) over bar and 0 < mu < (mu) over bar(lambda), then we provide further conditions under which, respectively, the bound (mu) over bar(lambda) is either necessary, or can be removed. (AU)

FAPESP's process: 14/25398-0 - Elliptic equations and systems with several kinds of interaction with the spectrum
Grantee:Eugenio Tommaso Massa
Support Opportunities: Regular Research Grants