Articles

THE REGULARITY OF QUASI-MINIMA AND ω-MINIMA OF INTEGRAL FUNCTIONALS

  • NING Zheng-Yuan ,
  • WANG Xiu-Li
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  • College of Computer and Information, Fujian Agriculture and Forestry University, Fuzhou 350002, China

Received date: 2008-01-15

  Revised date: 2008-05-20

  Online published: 2010-07-20

Supported by

Supported by the Program  of Fujian Province-Hong Kong

Abstract

In this article, we have two parts. In the first part, we are concerned with the locally Holder continuity of quasi-minima of the following integral functional
 ∫Ω f(x, u, Du) dx,                     (1)
 where Ω is an open subset of Euclidean N-space (N ≥3), u: Ω→R, the Carath\'eodory function f satisfies the critical Sobolev exponent growth condition

|Du|p-|u|p*-a(x)l≤ f(x, u, Du)≤ L(|Du|p+|u|p*+a(x)),              (2)
where L≤1, 1<p<N, p*=Np/N-p, and a(x) is a nonnegative function that lies in a suitable Lp space. In the second part, we study the locally H\"{o}lder continuity of ω-minima of (1). Our method is to compare the ω-minima of (1) with the minima of corresponding function determined by its critical Sobolev exponent growth condition. Finally, we obtain the regularity by Ekeland's variational principal.

Cite this article

NING Zheng-Yuan , WANG Xiu-Li . THE REGULARITY OF QUASI-MINIMA AND ω-MINIMA OF INTEGRAL FUNCTIONALS[J]. Acta mathematica scientia, Series B, 2010 , 30(4) : 1301 -1317 . DOI: 10.1016/S0252-9602(10)60126-9

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