We examine the regularity of weak and very weak solutions of the Poisson equation on polygonal domains with data in L². We consider mixed Dirichlet, Neumann and Robin boundary conditions. We also describe the singular part of weak and very weak solutions.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-am31-4-6, author = {Adam Kubica}, title = {The regularity of weak and very weak solutions of the Poisson equation on polygonal domains with mixed boundary conditions (part I)}, journal = {Applicationes Mathematicae}, volume = {31}, year = {2004}, pages = {443-456}, zbl = {1125.35031}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-am31-4-6} }
Adam Kubica. The regularity of weak and very weak solutions of the Poisson equation on polygonal domains with mixed boundary conditions (part I). Applicationes Mathematicae, Tome 31 (2004) pp. 443-456. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-am31-4-6/