Solution of some plane filtration problems with partially unknown boundaries.
Solvability of a first order system in three-dimensional non-smooth domains
A system of first order partial differential equations is studied which is defined by the divergence and rotation operators in a bounded nonsmooth domain . On the boundary , the vanishing normal component is prescribed. A variational formulation is given and its solvability is investigated.
Sur la description intrinsèque des grandeurs dimensionnelles