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$%M. R. Posteraro and R. Volpicelli, Comparison results for a class of variational inequalities, Rev. Mat. Univ. Complut. Madrid 6 (1993), no. 2, 295–310.%$

Comparison Results for a Class of Variational Inequalities
M. Rosaria POSTERARO and Roberta VOLPICELLI
Dip. di Matematica ed Appl.
“Renato Cacciopoli”
Università di Nappoli
Complesso Monte S. Angelo
80126 Napoli — Italy

Received: December 1, 1992
 
ABSTRACT

In this paper we study a variational inequality related to a linear differential operator of elliptic type. We give a pointwise bound for the rearrangement of the solution u , and an estimate for the 2 L -norm of the gradient of u .

1991 Mathematics Subject Classification: 35J85, 35B05.