†This paper is based on a talk delivered by the author at the NSF Conference on Linear and Multilinear Algebra, December 1977, hosted by the Institute for the Interdisciplinary Applications of Algebra and Combinatorics, University of California, Santa Barbara
‡This research was sponsored in part by the Air Force Office of Scientific Research, Air Force System Command, USAF, under Grant No. AFOSR-76-3046
Notes
†This paper is based on a talk delivered by the author at the NSF Conference on Linear and Multilinear Algebra, December 1977, hosted by the Institute for the Interdisciplinary Applications of Algebra and Combinatorics, University of California, Santa Barbara
‡This research was sponsored in part by the Air Force Office of Scientific Research, Air Force System Command, USAF, under Grant No. AFOSR-76-3046