Graph Structure Algorithms in FGRAAL.

FGRAAL is a FORTRAN-based graph algorithmic compiler language designed for use in the solution of applied graph problems. This report describes a number of UNIVAC 1108 routines which analyze the topological structure of directed and undirected graphs, including induced subgraphs, spanning trees, connected and strong components, fundamental cycles and cocycles, and blocks. In addition, several utility procedures and input/output routines are described, as well as a random graph generator.