Non-existence of imprimitive Q-polynomial schemes of exceptional type with d=4

European Journal of Combinatorics - Tập 30 - Trang 674-681 - 2009
Diana R. Cerzo1, Hiroshi Suzuki2
1Institute of Mathematics, University of the Philippines, Diliman, Quezon City 1101, Philippines
2Department of Mathematics and Computer Science, International Christian University, Mitaka, Tokyo 181-8585, Japan

Tài liệu tham khảo

Bannai, 1984 Brouwer, 1989 D. Cerzo, On imprimitive Q-polynomial association schemes, Master Thesis, International Christian University, 2006 Martin, 2007, Imprimitive cometric association schemes: Constructions and analysis, J. Algebraic Combin., 25, 399, 10.1007/s10801-006-0043-2 Suzuki, 1998, Imprimitive Q-polynomial association schemes, J. Algebraic Combin., 7, 165, 10.1023/A:1008660421667 Suzuki, 1998, Association schemes with multiple Q-polynomial structures, J. Algebraic Combin., 7, 181, 10.1023/A:1008612505738