Let u be a solution to a second order elliptic equation with singular magnetic fields, vanishing continuously on an open subset Γ of the boundary of a Lipschitz domain. An elementary proof of the doubling property for u² over balls centered at some points near Γ is presented. Moreover, we get the unique continuation at the boundary of Dini domains for elliptic operators.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm151-1-3, author = {Xiangxing Tao}, title = {Doubling properties and unique continuation at the boundary for elliptic operators with singular magnetic fields}, journal = {Studia Mathematica}, volume = {151}, year = {2002}, pages = {31-48}, zbl = {0997.35011}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm151-1-3} }
Xiangxing Tao. Doubling properties and unique continuation at the boundary for elliptic operators with singular magnetic fields. Studia Mathematica, Tome 151 (2002) pp. 31-48. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm151-1-3/