鲁东大学数学与统计科学学院,山东 烟台 264025
刘晶晶(2000年生),女;研究方向:微分方程及其应用;E-mail:ljjli1@sina.com
王琳琳(1976年生),女;研究方向:非线性分析及微分方程;E-mail:llwang@ldu.edu.cn
收稿:2024-09-03,
修回:2025-11-17,
录用:2025-11-18,
网络首发:2026-03-06,
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刘晶晶, 王琳琳. 带有
LIU Jingjing, WANG Linlin. The existence of solutions for a class of nonlinear elliptic equations with Hardy potential[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7.
刘晶晶, 王琳琳. 带有
LIU Jingjing, WANG Linlin. The existence of solutions for a class of nonlinear elliptic equations with Hardy potential[J/OL]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2026, 1-7. DOI: 10.11714/acta.snus.ZR20240268.
主要研究一类非线性椭圆型方程
<math id="M2"><mo>-</mo><mi mathvariant="normal">Δ</mi><mi>u</mi><mo>-</mo><mrow><mrow><mi>λ</mi><mi>u</mi></mrow><mo>/</mo><mrow><mtext> </mtext><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mn mathvariant="normal">2</mn></mrow></msup></mrow></mrow><mo>+</mo><mi>b</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mi>g</mi><mo stretchy="false">(</mo><mi>u</mi><mo stretchy="false">)</mo><mo>=</mo><mn mathvariant="normal">0</mn><mo>
</mo><mtext> </mtext><mi>x</mi><mo>∈</mo><mi mathvariant="normal">Ω</mi><mo>\</mo><mo stretchy="false">{</mo><mn mathvariant="normal">0</mn><mo stretchy="false">}</mo><mo>
</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373272&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373258&type=
59.35132980
4.23333359
其中
<math id="M3"><mi mathvariant="normal">Ω</mi><mo>⊆</mo><msup><mrow><mi mathvariant="double-struck">R</mi></mrow><mrow><mtext> </mtext><mi>N</mi></mrow></msup><mo stretchy="false">(</mo><mi>N</mi><mo>≥</mo><mn mathvariant="normal">3</mn><mo stretchy="false">)</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373234&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373248&type=
21.33600044
3.21733332
是一个包含原点的光滑有界域.当
<math id="M4"><mi>λ</mi><mo>></mo><mrow><mrow><msup><mrow><mo stretchy="false">(</mo><mi>N</mi><mo>-</mo><mn mathvariant="normal">2</mn><mo stretchy="false">)</mo></mrow><mrow><mn mathvariant="normal">2</mn></mrow></msup></mrow><mo>/</mo><mrow><mn mathvariant="normal">4</mn></mrow></mrow></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373273&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373259&type=
19.98133469
3.47133350
时,通过上下解方法,得到该方程正解的存在性;通过比较原理得到
<math id="M5"><msub><mrow><mi>C</mi></mrow><mrow><mn mathvariant="normal">3</mn></mrow></msub><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><mo>≤</mo><mi>u</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>≤</mo><msub><mrow><mi>C</mi></mrow><mrow><mn mathvariant="normal">4</mn></mrow></msub><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><mo>.</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373235&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373249&type=
38.77733231
5.41866684
进而得到
<math id="M6"><munder><mrow><mi mathvariant="normal">l</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">m</mi></mrow><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced><mo>→</mo><mn mathvariant="normal">0</mn></mrow></munder><mfrac><mrow><mi>u</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow><mrow><msub><mrow><mi>U</mi></mrow><mrow><mn mathvariant="normal">0</mn></mrow></msub><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mfrac><mo>=</mo><mi>m</mi><mi>r</mi><mo>
</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373274&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373260&type=
23.36800003
7.28133297
其中
<math id="M7"><msub><mrow><mi>U</mi></mrow><mrow><mn mathvariant="normal">0</mn></mrow></msub><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msup><mrow><mi>l</mi></mrow><mrow><mfrac><mrow><mn mathvariant="normal">1</mn></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><mo>.</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373236&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373250&type=
26.67000008
5.41866684
In this paper, we study a class of nonlinear elliptic equation
<math id="M8"><mo>-</mo><mi mathvariant="normal">Δ</mi><mi>u</mi><mo>-</mo><mrow><mrow><mi>λ</mi><mi>u</mi></mrow><mo>/</mo><mrow><mtext> </mtext><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mn mathvariant="normal">2</mn></mrow></msup></mrow></mrow><mo>+</mo><mi>b</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mi>g</mi><mo stretchy="false">(</mo><mi>u</mi><mo stretchy="false">)</mo><mo>=</mo><mn mathvariant="normal">0</mn><mo>
</mo><mtext> </mtext><mi>x</mi><mo>∈</mo><mi mathvariant="normal">Ω</mi><mo>\</mo><mo stretchy="false">{</mo><mn mathvariant="normal">0</mn><mo stretchy="false">}</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373275&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373261&type=
64.93933105
4.23333359
,where
<math id="M9"><mi mathvariant="normal">Ω</mi><mo>⊆</mo><msup><mrow><mi mathvariant="double-struck">R</mi></mrow><mrow><mtext> </mtext><mi>N</mi></mrow></msup><mo stretchy="false">(</mo><mi>N</mi><mo>≥</mo><mn mathvariant="normal">3</mn><mo stretchy="false">)</mo></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373237&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373251&type=
21.33600044
3.21733332
is a smooth bounded domain and
<math id="M10"><mn mathvariant="normal">0</mn><mo>∈</mo><mi mathvariant="normal">Ω</mi></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373276&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373262&type=
7.87400007
2.37066650
. When
<math id="M11"><mi>λ</mi><mo>></mo><mrow><mrow><msup><mrow><mo stretchy="false">(</mo><mi>N</mi><mo>-</mo><mn mathvariant="normal">2</mn><mo stretchy="false">)</mo></mrow><mrow><mn mathvariant="normal">2</mn></mrow></msup></mrow><mo>/</mo><mrow><mn mathvariant="normal">4</mn></mrow></mrow></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373283&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373252&type=
20.91266632
3.55599999
, by me
ans of the sub and super solution method, we explore the existence of positive solutions. By the comparison principle, we obtain
<math id="M12"><msub><mrow><mi>C</mi></mrow><mrow><mn mathvariant="normal">3</mn></mrow></msub><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><mo>≤</mo><mi>u</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>≤</mo><msub><mrow><mi>C</mi></mrow><mrow><mn mathvariant="normal">4</mn></mrow></msub><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373277&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373263&type=
42.41799927
5.92666674
, and then
<math id="M13"><munder><mrow><mi mathvariant="normal">l</mi><mi mathvariant="normal">i</mi><mi mathvariant="normal">m</mi></mrow><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced><mo>→</mo><mn mathvariant="normal">0</mn></mrow></munder><mfrac><mrow><mi>u</mi><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow><mrow><msub><mrow><mi>U</mi></mrow><mrow><mn mathvariant="normal">0</mn></mrow></msub><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo></mrow></mfrac><mo>=</mo><mi>m</mi><mi>r</mi></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373284&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373298&type=
25.14599991
8.46666718
has been proven, where
<math id="M14"><msub><mrow><mi>U</mi></mrow><mrow><mn mathvariant="normal">0</mn></mrow></msub><mo stretchy="false">(</mo><mi>x</mi><mo stretchy="false">)</mo><mo>=</mo><msup><mrow><mi>l</mi></mrow><mrow><mfrac><mrow><mn mathvariant="normal">1</mn></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup><msup><mrow><mfenced open="|" close="|" separators="|"><mrow><mi>x</mi></mrow></mfenced></mrow><mrow><mo>-</mo><mfrac><mrow><mn mathvariant="normal">2</mn><mo>+</mo><mi>θ</mi></mrow><mrow><mi>q</mi><mo>-</mo><mn mathvariant="normal">1</mn></mrow></mfrac></mrow></msup></math>
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373278&type=
https://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=101373264&type=
28.95599937
6.09600019
.
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