2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/160409All the possible super-conducting order parameters for the LaOFeAs system are classified by their transformation under the complete crystal symmetry. The general forms of the super-conducting gap functions for each class are discussed. We find that the gap functions in such a multi-band system belong to three types, full gap, nodal type and finite {}``Fermi arc'' type. Possible physical consequences caused by different types of gap functions are also discussed.12 pages, 1 figureSuperconductivityStrongly Correlated Electronstext