简介:考察了一类非线性一维p-Laplace方程正解的多解性.主要结论表明,即使非线性项在0点和无穷远处不满足通常的增长条件,该方程仍可能有两个正解.
简介:LetM^nbeaclosedspacelikesubmanifoldisometricallyimmersedindeSitterspaceSp^(n+p)(c),DenotebyR,HandSthenormalizedscalarcurvature,themeancurvatureandthesquareofthelengthofthesecondfundamentalformofM^n,respectively.SupposeRisconstantandR≤c.ThepinchingproblemonSisstudiedandarigiditytheoremforM^nimmersedinSp^(n+p)(c)withparallelnormalizedmeancurvaturevectorfieldisproved.Whenn≥3,thepinchingconstantisthebest.Thus,themistakeofthepaper“Space-likehypersurfacesindeSitterspacewithconstantscalarcurvature”(seeManusMath,1998,95:499-505)iscorrected.Moreover,thereductionofthecodimensionwhenM^nisacompletesubmanifoldinSp^(n+p)(c)withparallelnormalizedmeancurvaturevectorfieldisinvestigated.
简介:InthispaperweprovedtheA_p-weightedinequalitiesformartingaletransformsanddifferentialsubordinationsofBanach-space-valuedregularmaringales.Wediscussedtherelationsbetweentheweightedinequalities,A_p-weightfunctionsandtheBanachspaceswhichhastheUMDpropertyorareisomorphictoHilbertspace.
简介:1.IntroductionInthispaperweconsiderCauchyproblemforaclassofnonhomogeneousNavier-Stokesequationsintheinfinitecylinderwith.Givensatisfyinginthedistributionsensediv,weseekasolutionvectorandapressurefunctionP(t,x)suchthatwhereisanonlinearvector-valuedfun...
简介:TheaimofthepresentpaperistoprovenewequivalenceresultsandL_p-staurationresultsonweightedsimultaneousapproximationbythemethodofBernstein-Durrmeyeroperators(includ-ingresultsin[7]).OneofthemaintoolsandcrucialestimatesmanagingtheconverseresultsisgivenbyadirectmodifiedVornorskajatheoremwhichusesthethirdorderweightedmodulusofsmoothness.
简介:讨论了一类具有奇异系数的p-Laplace问题-Δpu-μ|u|u|x|p=u|x|tu+λuq-2u,x∈Ω,u=0,x∈Ω无穷多解的存在性,其中N≥3,Ω是RN中一有界光滑区域,0∈Ω,Δpu=-div(|▽u|p-2▽u),0≤μ〈μ=(N-p)ppp,1〈p〈N,0≤t〈p,λ〉0,1〈q〈p,p*(t)=p(N-t)(N-p)是Hardy-Sobolev临界指数利用变分原理和对偶喷泉定理,证明了该问题具有无穷多解.
简介:在这份报纸,我们试图把一条统一途径给存在Ekelands的几个版本变化原则。在一致空格的框架,我们通常介绍p距离和更多,q距离。然后,我们介绍完全性的一种新类型一致空格,即,关于q距离的顺序的完全性(特别地,p距离),它是完全性的一个很广泛的概念。由使用q距离和完全性的新类型,我们证明一条概括Takahashisnonconvex最小化定理,一个概括Ekelands变化原则和概括Caristis修理了点定理。而且,我们证明上述三条定理等价于对方。从概括Ekelands变化原则,我们推出Ekelands原则的很多个特别版本,它包括原则和他们的改进的许多已知的版本。
简介:在不要求非线性项f(t,u)取值非负但厂下方有界的情形下讨论了一类P-Laplacian方程两点边值问题的正解存在性问题,利用锥拉伸压缩不动点定理得到了该边值问题的一个正解存在性结果.