TY - JOUR AU - El-Gebeily M.A. TI - Weak formulation of singular differential expressions in spaces of functions with minimal derivatives. JO - Abstract and Applied Analysis PY - 2005 SP - 691 EP - 705 VL - 2005 IS - 7 PB - mathdoc UR - https://geodesic-test.mathdoc.fr/articles/10.1155/AAA.2005.691/ DO - 10.1155/AAA.2005.691 LA - en ID - 10_1155_AAA_2005_691 ER -