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具p-雙調和算子的非局部橢圓方程Navier邊值問題的廣義解

2024-05-15 11:38:37劉健趙增勤
吉林大學學報(理學版) 2024年2期

劉健 趙增勤

摘要: 利用變分方法和相應的臨界點定理研究一類具有p-雙調和算子的非局部橢圓方程Navier邊值問題, 在非線性項滿足超線性條件時, 得到了兩個非平凡廣義解的存在性定理.

關鍵詞: 非局部橢圓方程; Navier邊值問題; p-雙調和算子; 變分方法; 廣義解

中圖分類號: O175.2文獻標志碼: A文章編號: 1671-5489(2024)02-0205-06

Generalized Solutions to Nonlocal Elliptic EquationsNavier Boundary Value Problems with p-Biharmonic Operators

LIU Jian1, ZHAO Zengqin2

(1. School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan 250014, China;

2. School of Mathematical Sciences, Qufu Normal University, Qufu 273165, Shandong Province, China)

Abstract: By using? variational methods and corresponding critical points theorems, we investigated a class of nonlocal elliptic equations Navier boundary value problems with p-biharmonic operators. We obtained two existence theorems for nontrivial generalized solutions? when nonlinear terms satisfied super-linear conditions.

Keywords: nonlocal elliptic equation; Navier boundary value problem; p-biharmonic operator; variational method; generalized solution

0 引 言

四階非線性橢圓方程邊值問題在微機電系統、 多相系統的相場模型、 固體表面擴散及界面動力學等領域應用廣泛. Kirchhoff型橢圓方程是帶有非局部項的非線性方程, 該類方程的很多定性性質可解釋物理學和工程學中許多非線性模型的物理意義[1]. 為研究拉伸弦的振動, Lions[2]建立了該類方程的抽象框架. 近年來, 利用變分方法結合臨界點理論, 對非線性微分方程解的存在性及解存在數量的研究得到廣泛關注[3-18]. 例如: 文獻[4,14]分別在一定的條件下研究了四階脈沖彈性梁方程解的存在數量; 文獻[5]在非線性項滿足一定的增長性條件下, 利用變分方法結合相應的臨界點定理研究了一類Kirchhoff型四階彈性梁方程兩個非平凡廣義解的存在性.

受上述研究啟發, 本文研究下列具有p-雙調和算子的Kirchhoff型橢圓方程Navier邊值問題廣義解的存在性:Δ2pu+K∫Ωup/p+up/pdt(-Δpu+up-2u)=λf(x,u),/在Ω內,

參考文獻

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[2]LIONS J L. On Some Questions in Boundary Value Problems of Mathematical Physics [J]. North-Holland Mathematics Studies, 1978, 30: 284-346.

[3]BONANNO G, DI BELLA B. A Boundary Value Problem for Fourth-Order Elastic Beamequations [J]. Journal of Mathematical Analysis and Applications, 2008, 343(2): 1166-1176.

[4]DAGU G, DI BELLA B, WINKERT P. Two Positive Solutions for Nonlinear Fourth-Order Elastic Beam Equations [J/OL]. Electronic Journal of Qualitative Theory of Differential Equations, (2019-05-21)[2023-03-07]. https://doi.org/10.14232/ejqtde.2019.1.37.

[5]LIU J, YU W G. Two Solutions to Kirchhoff-Type Fourth-Order Implusive Elastic Beam Equations [J/OL]. Boundary Value Problems, (2021-03-31)[2023-03-07]. https://doi.org/10.1186/s13661-021-01515-8.

[6]LIU J, YU W G. Two Solutions to Superlinear Hamiltonian Systems with Impulsive Effects [J]. Applied Mathematics Letters, 2020, 102: 106162-1-106162-6.

[7]LIU J, ZHAO Z Q, ZHANG T Q. Multiple Solutions to Damped Hamiltonian Systems with Impulsive Effects [J]. Applied Mathematics Letters, 2019, 91(1): 173-180.

[8]LIU J, ZHAO Z Q. Multiple Solutions for Impulsive Problems with Non-autonomous Perturbations [J]. Applied Mathematics Letters, 2017, 64: 143-149.

[9]NIETO J J, OREGAN D. Variational Approach to Impulsive Differential Equations [J]. Nonlinear Analysis: Real World Applications, 2009, 10(2): 680-690.

[10]NIETO J J. Variational Formulation of a Damped Dirichlet Impulsive Problem [J]. Applied Mathematics Letters,2010, 23(8): 940-942.

[11]SUN J T, CHEN H B, YANG L. Variational Methods to Fourth-Order Impulsive Differential Equations [J]. Journal of Applied Mathematics and Computing, 2011, 35: 323-340.

[12]劉健, 趙增勤. Cerami條件下脈沖邊值問題古典解的存在性 [J]. 數學學報(中文版), 2016, 59(5): 609-622. (LIU J, ZHAO Z Q. Existence of Classical Solutions to Impulsive Boundary Value Problems under Cerami Condition [J]. Acta Mathematica Sinica (Chinese Series), 2016, 59(5): 609-622.)

[13]劉健, 趙增勤, 于文廣. 具非自治微小擾動的脈沖方程三個古典解的存在性 [J]. 數學學報(中文版), 2019, 62(3): 441-448. (LIU J, ZHAO Z Q, YU W G. The existence of Triple Classical Solutions to Impulsive Problems with Small Non-autonomous Perturbations [J]. Acta Mathematica Sinica (Chinese Series), 2019, 62(3): 441-448.)

[14]劉健, 趙增勤, 于文廣. 四階脈沖彈性梁方程非平凡弱解的存在數量 [J]. 數學學報(中文版), 2021, 64(1): 99-106. (LIU J, ZHAO Z Q, YU W G. The Numbers of Nontrivial Weak Solutions to Fourth-Order Impulsive Elastic Beam Equations [J]. Acta Mathematica Sinica (Chinese Series), 2021, 64(1): 99-106.)

[15]謝嫣玲, 肖宇霞, 儲昌木.? 一類具有奇異項的p(x)-Kirchhoff方程解的存在性 [J]. 東北師大學報(自然科學版), 2022, 54(3): 20-24. (XIE Y L, XIAO Y X, CHU C M. Existence of Solutions of p(x)-Kirchhoff Equation with Singular and Nonlinear Terms [J]. Journal of Northeast Normal University (Natural Science Edition),? 2022, 54(3): 20-24.)

[16]SANG Y B,? REN Y.? A Critical p-Biharmonic System with Negative Exponents [J].? Computers & Mathematics with Applications, 2020, 79(5): 1335-1361.

[17]LIU J,? ZHAO Z Q.? Leray-Lions Type p(x)-Biharmonic Equations Involving Hardy Potentials [J].? Applied Mathmatics Letters, 2024, 149: 108907-1-108907-6.

[18]BOUREANU M M,? VLEZ-STANTIAGO A. Applied Higher-Order Elliptic Problems with Nonstandard Growth Structure [J].? Applied Mathmatics Letters, 2022, 123: 107603-1-107603-7.

[19]MAWHIN J, WILLEM M. Critical Point Theory and Hamiltonian Systems [M]. New York: Springer Verlag, 1989: 1-292.

[20]BONANNO G, IANNIZZOTTO A, MARRAS M. Two Positive Solutions for Superlinear Neumann Problems with a Complete Sturm-Liouville Operator [J]. Journal of Convex Analysis, 2018, 25(2): 421-434.

[21]BONANNO G. Relations between the Mountain Pass Theorem and Local Minima [J]. Advances in Nonlinear Analysis, 2012, 1(3): 205-220.

(責任編輯: 趙立芹)

收稿日期: 2023-06-12.

第一作者簡介: 劉 健(1980—), 男, 漢族, 博士, 教授, 從事非線性泛函分析及偏微分方程的研究, E-mail: liujianmath@163.com.

基金項目: 國家自然科學基金(批準號: 11571197)和山東省自然科學基金(批準號: ZR2021MA070).

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