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An existence result for superlinear semipositone p-Laplacian systems on the exterior of a ball
M. Chhetri, R. Shivaji, B. Son,
Published in
2018
Volume: 31
   
Issue: 7-8
Pages: 643 - 656
Abstract
We study the existence of positive radial solutions to the problem 8 { -Δpu = λK1(jxj)f(v) in Ωe; -Δpv = λK2(jxj)g(u) in Ωe; u = v = 0 if jxj = r0; u(x) → 0; v(x) → 0 as jxj → 1; where Δpw := div(jrwjp-2rw), 1 < p < n, λ is a positive parameter, r0 > 0 and Ωe := {x 2 Rnj jxj > r0}. Here, Ki : [r0;∞) → (0;∞), i = 1; 2 are continuous functions such that limr→1 Ki(r) = 0, and f; g : [0;1) → R are continuous functions which are negative at the origin and have a superlinear growth at infinity. We establish the existence of a positive radial solution for small values of λ via degree theory and rescaling arguments. © 2018 Khayyam Publishing. All rights reserved.}, funding_details={Simons FoundationSimons Foundation, 317872}, funding_details={European Social FundEuropean Social Fund, ESF}, funding_text_1={Since ‖u‖∞ → ∞ as λ → 0, we have maxt∈[0,1]f(v(t)) → ∞ as λ → 0. This implies that ‖v‖∞ → ∞ as λ → 0. Similarly if ‖v‖∞ → ∞ as λ → 0, we can prove ‖u‖∞ → ∞ as λ → 0. Hence, both ‖u‖∞ and ‖v‖∞ → ∞ as λ → 0. Hence, Theorem 1.1 is proven. Acknowledgment. This work was partially supported by the project EXLIZ-CZ.1.07/2.3.00/30.0013, which is co-financed by the European Social Fund and the state budget of the Czech Republic and by the INSPIRE faculty award by the Department of Science and Technology, India for Lakshmi Sankar. This work was also partially supported by a grant from the Simons Foundation (#317872) for Ratnasingham Shivaji.}, references={Abebe, A., Chhetri, M., Sankar, L., Shivaji, R., Positive solutions for a class of superlinear semipositone systems on exterior domains Boundary Value Problems, 2014 (2014), p. 198; Allegretto, W., Nistri, P., Zecca, P., Positive solutions of elliptic non-positone problems (1992) Differential Integral Equations, 5, pp. 95-101; Ambrosetti, A., Arcoya, D., Buoni, B., Positive solutions for some semi-positone problems via bifurcation theory (1994) Differential Integral Equations, 7, pp. 655-663; Ambrosetti, A., Azorero, J.G., Peral, I., Multiplicity results for some nonlinar elliptic equations (1996) Journal of Functional Analysis, 137, pp. 219-242; Anuradha, V., Hai, D.D., Shivaji, R., Existence results for superlinear semipositone BVP's (1996) Proc. Amer. Math. 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Equ.}, document_type={Article}, source={Scopus},
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JournalDifferential and Integral Equations
ISSN08934983
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