Calculus of Variations and Partial Differential Equations ( IF 2.1 ) Pub Date : 2021-04-03 , DOI: 10.1007/s00526-021-01959-x Lukas Koch
We prove global \(W^{1,q}({\varOmega },{\mathbb {R}}^m)\)-regularity for minimisers of convex functionals of the form \({\mathscr {F}}(u)=\int _{\varOmega } F(x,Du)\,{\mathrm{d}}x\).\(W^{1,q}({\varOmega },{\mathbb {R}}^m)\) regularity is also proven for minimisers of the associated relaxed functional. Our main assumptions on F(x, z) are a uniform \(\alpha \)-Hölder continuity assumption in x and controlled (p, q)-growth conditions in z with \(q<\frac{(n+\alpha )p}{n}\).
中文翻译:
具有(p,q)增长的凸泛函的最小化的全局较高可积性
我们证明了全局\(W ^ {1,q}({\ varOmega},{\ mathbb {R}} ^ m)\) -正则性对于形式为\({\ mathscr {F}}( u)= \ int _ {\ varOmega} F(x,Du)\,{\ mathrm {d}} x \)。\(W ^ {1,q}({\ varOmega},{\ mathbb {R}} ^ m)\)的规律性也被证明可以使相关松弛函数的最小化。我们对主要假设˚F(X, Ž)是均匀的\(\阿尔法\) -Hölder连续性假设X和控制(p, q)中-growth条件ž与\(Q <\压裂{(N + \阿尔法) p} {n} \)。