Results 271 to 280 of about 5,040,927 (317)

A Trudinger–Moser inequality in a weighted Sobolev space and applications

, 2014
We establish a Trudinger–Moser type inequality in a weighted Sobolev space. The inequality is applied in the study of the elliptic equation − div (K(x)∇u)=K(x)f(u)+h in R2,where K(x)=exp(|x|2/4) , f has exponential critical growth and h belongs to the ...
M. Furtado, E. Medeiros, U. Severo
semanticscholar   +1 more source

Two non-trivial solutions for a non-homogeneous Neumann problem: an Orlicz–Sobolev space setting

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 2009
In this paper we study a non-homogeneous Neumann-type problem which involves a nonlinearity satisfying a non-standard growth condition. By using a recent variational principle of Ricceri, we establish the existence of at least two non-trivial solutions ...
A. Kristály   +2 more
semanticscholar   +1 more source

Homeomorphisms in the Sobolev space W 1,n–1

, 2010
Let be open. We show that each homeomorphism satisfies . If we moreover assume that ƒ has finite distortion, then and ƒ–1 has finite distortion. The main ingredient is a new result on change of variables in integral (area and coarea formula) for such ...
M. Csörnyei, S. Hencl, J. Malý
semanticscholar   +1 more source

A Sobolev Space Analysis of Picture Reconstruction

, 1980
The problem of recovering the density function of a plane picture from its line integrals is considered. If a picture of finite extent whose density function belongs to the Sobolev space$H^\alpha $ of order $\alpha > \frac{1} {2}$ is to be reconstructed ...
F. Natterer
semanticscholar   +1 more source

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