Research articles

On F-Sobolev and Orlicz-Sobolev inequalities

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  • 1.School of Mathematical Sciences, Beijing Normal University, Beijing 100875, China;Department of Mathematics and Mechanics, University of Science, Pyongyang, D. P. R. of Korea; 2.School of Mathematical Sciences, Beijing Normal University, Beijing 100875, China;Department of Mathematics, Swansea University, Singleton Park, Swansea, SA2 8PP, UK;

Published date: 05 Dec 2009

Abstract

Let F ∈ C([0,∞)) be a positive increasing function such that Φ(s) := sF(s) is a Young function. In general, the F-Sobolev inequality and the Φ-Orlicz-Sobolev inequality are not equivalent. In this paper, a growth condition on F is presented for these two inequalities to be equivalent. The main result generalizes the corresponding known one for F(s) = logδ(1+s) (δ>0). As an application, some criteria are presented for the F-Sobolev inequality to hold.

Cite this article

Cholryong KANG, Fengyu WANG, . On F-Sobolev and Orlicz-Sobolev inequalities[J]. Frontiers of Mathematics in China, 2009 , 4(4) : 659 -667 . DOI: 10.1007/s11464-009-0035-3

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