The Heawood map-coloring problem, cases 3, 5, 6, and 9
By: [by] J. W. T. Youngs.
Series: Rand Corporation. Memorandum RM-5994/2-PR
Publisher: Rand Corp.
Published: 1969
Place of publication: Santa Monica, Calif
Language: eng
Number of pages: 83
Subjects: Graph theory.; Topological imbeddings.; Map-coloring problem.
Notes: Bibliography: p. 83.
"This research is supported by the United States Air Force under Project Rand--contract no. F44620-67-C-0045."
"Cases 1, 7, and 10 are presented in RM-5994/1-PR."