{"title":"一类非齐次椭圆型问题在次二次增长条件下解的高可微性","authors":"A. Clop, A. Gentile, Antonia Passarelli di Napoli","doi":"10.1142/s166436072350008x","DOIUrl":null,"url":null,"abstract":"We prove a sharp higher differentiability result for local minimizers of functionals of the form $$\\mathcal{F}\\left(w,\\Omega\\right)=\\int_{\\Omega}\\left[ F\\left(x,Dw(x)\\right)-f(x)\\cdot w(x)\\right]dx$$ with non-autonomous integrand $F(x,\\xi)$ which is convex with respect to the gradient variable, under $p$-growth conditions, with $1<p<2$. The main novelty here is that the results are obtained assuming that the partial map $x\\mapsto D_\\xi F(x,\\xi)$ has weak derivatives in some Lebesgue space $L^q$ and the datum $f$ is assumed to belong to a suitable Lebesgue space $L^r$. We also prove that it is possible to weaken the assumption on the datum $f$ and on the map $x\\mapsto D_\\xi F(x,\\xi)$, if the minimizers are assumed to be a priori bounded.","PeriodicalId":9348,"journal":{"name":"Bulletin of Mathematical Sciences","volume":"137 1","pages":""},"PeriodicalIF":1.1000,"publicationDate":"2022-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"Higher differentiability results for solutions to a class of non-homogeneouns elliptic problems under sub-quadratic growth conditions\",\"authors\":\"A. Clop, A. Gentile, Antonia Passarelli di Napoli\",\"doi\":\"10.1142/s166436072350008x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We prove a sharp higher differentiability result for local minimizers of functionals of the form $$\\\\mathcal{F}\\\\left(w,\\\\Omega\\\\right)=\\\\int_{\\\\Omega}\\\\left[ F\\\\left(x,Dw(x)\\\\right)-f(x)\\\\cdot w(x)\\\\right]dx$$ with non-autonomous integrand $F(x,\\\\xi)$ which is convex with respect to the gradient variable, under $p$-growth conditions, with $1<p<2$. The main novelty here is that the results are obtained assuming that the partial map $x\\\\mapsto D_\\\\xi F(x,\\\\xi)$ has weak derivatives in some Lebesgue space $L^q$ and the datum $f$ is assumed to belong to a suitable Lebesgue space $L^r$. We also prove that it is possible to weaken the assumption on the datum $f$ and on the map $x\\\\mapsto D_\\\\xi F(x,\\\\xi)$, if the minimizers are assumed to be a priori bounded.\",\"PeriodicalId\":9348,\"journal\":{\"name\":\"Bulletin of Mathematical Sciences\",\"volume\":\"137 1\",\"pages\":\"\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2022-03-23\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bulletin of Mathematical Sciences\",\"FirstCategoryId\":\"100\",\"ListUrlMain\":\"https://doi.org/10.1142/s166436072350008x\",\"RegionNum\":2,\"RegionCategory\":\"数学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATHEMATICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bulletin of Mathematical Sciences","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1142/s166436072350008x","RegionNum":2,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATHEMATICS","Score":null,"Total":0}
Higher differentiability results for solutions to a class of non-homogeneouns elliptic problems under sub-quadratic growth conditions
We prove a sharp higher differentiability result for local minimizers of functionals of the form $$\mathcal{F}\left(w,\Omega\right)=\int_{\Omega}\left[ F\left(x,Dw(x)\right)-f(x)\cdot w(x)\right]dx$$ with non-autonomous integrand $F(x,\xi)$ which is convex with respect to the gradient variable, under $p$-growth conditions, with $1
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