Generalized Picone inequalities and their applications to (p,q)-Laplace equations

We obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators. With its help, as well as with the help of several other known generalized Picone inequalities, we provide som...

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Main Authors: Bobkov Vladimir, Tanaka Mieko
Format: Article
Language:English
Published: De Gruyter 2020-09-01
Series:Open Mathematics
Subjects:
Online Access:https://doi.org/10.1515/math-2020-0065
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author Bobkov Vladimir
Tanaka Mieko
author_facet Bobkov Vladimir
Tanaka Mieko
author_sort Bobkov Vladimir
collection DOAJ
description We obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators. With its help, as well as with the help of several other known generalized Picone inequalities, we provide some nontrivial facts on the existence and nonexistence of positive solutions to the zero Dirichlet problem for the equation −Δpu−Δqu=fμ(x,u,∇u)-\hspace{-0.25em}{\text{Δ}}_{p}u-{\text{Δ}}_{q}u={f}_{\mu }(x,u,\nabla u) in a bounded domain Ω⊂ℝN\text{Ω}\hspace{0.25em}\subset {{\mathbb{R}}}^{N} under certain assumptions on the nonlinearity and with a special attention to the resonance case fμ(x,u,∇u)=λ1(p)|u|p−2u+μ|u|q−2u{f}_{\mu }(x,u,\nabla u)={\lambda }_{1}(p)|u{|}^{p-2}u+\mu |u{|}^{q-2}u, where λ1(p){\lambda }_{1}(p) is the first eigenvalue of the p-Laplacian.
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spelling doaj.art-33d182fb97d145299b12939d626e9fb02022-12-21T22:33:23ZengDe GruyterOpen Mathematics2391-54552020-09-011811030104410.1515/math-2020-0065math-2020-0065Generalized Picone inequalities and their applications to (p,q)-Laplace equationsBobkov Vladimir0Tanaka Mieko1Department of Mathematics and NTIS, Faculty of Applied Sciences, University of West Bohemia, Univerzitní 8, 301 00, Plzeň, Czech RepublicDepartment of Mathematics, Tokyo University of Science, Kagurazaka 1-3, Shinjyuku-ku, Tokyo, 162-8601, JapanWe obtain a generalization of the Picone inequality which, in combination with the classical Picone inequality, appears to be useful for problems with the (p,q)(p,q)-Laplace-type operators. With its help, as well as with the help of several other known generalized Picone inequalities, we provide some nontrivial facts on the existence and nonexistence of positive solutions to the zero Dirichlet problem for the equation −Δpu−Δqu=fμ(x,u,∇u)-\hspace{-0.25em}{\text{Δ}}_{p}u-{\text{Δ}}_{q}u={f}_{\mu }(x,u,\nabla u) in a bounded domain Ω⊂ℝN\text{Ω}\hspace{0.25em}\subset {{\mathbb{R}}}^{N} under certain assumptions on the nonlinearity and with a special attention to the resonance case fμ(x,u,∇u)=λ1(p)|u|p−2u+μ|u|q−2u{f}_{\mu }(x,u,\nabla u)={\lambda }_{1}(p)|u{|}^{p-2}u+\mu |u{|}^{q-2}u, where λ1(p){\lambda }_{1}(p) is the first eigenvalue of the p-Laplacian.https://doi.org/10.1515/math-2020-0065picone inequalitypicone identity(p,q)-laplaciannonexistencepositive solutions35j6235j2035p3035a01
spellingShingle Bobkov Vladimir
Tanaka Mieko
Generalized Picone inequalities and their applications to (p,q)-Laplace equations
Open Mathematics
picone inequality
picone identity
(p,q)-laplacian
nonexistence
positive solutions
35j62
35j20
35p30
35a01
title Generalized Picone inequalities and their applications to (p,q)-Laplace equations
title_full Generalized Picone inequalities and their applications to (p,q)-Laplace equations
title_fullStr Generalized Picone inequalities and their applications to (p,q)-Laplace equations
title_full_unstemmed Generalized Picone inequalities and their applications to (p,q)-Laplace equations
title_short Generalized Picone inequalities and their applications to (p,q)-Laplace equations
title_sort generalized picone inequalities and their applications to p q laplace equations
topic picone inequality
picone identity
(p,q)-laplacian
nonexistence
positive solutions
35j62
35j20
35p30
35a01
url https://doi.org/10.1515/math-2020-0065
work_keys_str_mv AT bobkovvladimir generalizedpiconeinequalitiesandtheirapplicationstopqlaplaceequations
AT tanakamieko generalizedpiconeinequalitiesandtheirapplicationstopqlaplaceequations