Let L be a symmetric second order uniformly elliptic operator in divergence form acting in a bounded Lipschitz domain Ω of RN and having Lipschitz coefficients in Ω. It is shown that the Rellich formula with respect to Ω and L extends to all functions in the domain D = {u ∈ H0 1(Ω); L(u) ∈ L2(Ω)} of L. This answers a question of A. Chaïra and G. Lebeau.
@article{urn:eudml:doc:41325, title = {A note on the Rellich formula in Lipschitz domains.}, journal = {Publicacions Matem\`atiques}, volume = {42}, year = {1998}, pages = {223-237}, mrnumber = {MR1628097}, zbl = {0923.31008}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41325} }
Ancona, Alano. A note on the Rellich formula in Lipschitz domains.. Publicacions Matemàtiques, Tome 42 (1998) pp. 223-237. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41325/