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具p-雙調(diào)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(yīng)的臨界點定理研究一類具有p-雙調(diào)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(guān)鍵詞: 非局部橢圓方程; Navier邊值問題; p-雙調(diào)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(tǒng)、 多相系統(tǒng)的相場模型、 固體表面擴散及界面動力學等領(lǐng)域應(yīng)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(zhì)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(jié)合臨界點理論, 對非線性微分方程解的存在性及解存在數(shù)量的研究得到廣泛關(guān)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(shù)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(jié)合相應(yīng)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(fā), 本文研究下列具有p-雙調(diào)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(nèi),

參考文獻

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(責任編輯: 趙立芹)

收稿日期: 2023-06-12.

第一作者簡介: 劉 ?。?980—), 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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