Structural descriptions of lower ideals of trees

Neil Robertson, Paul D. Seymour, Robin Thomas. Structural descriptions of lower ideals of trees. In Neil Robertson, Paul D. Seymour, editors, Graph Structure Theory, Proceedings of a AMS-IMS-SIAM Joint Summer Research Conference on Graph Minors held June 22 to July 5, 1991, at the University of Washington, Seattle. Volume 147 of Contemporary Mathematics, pages 525-538, American Mathematical Society, 1991.

Abstract

Abstract is missing.