|
|||||
|
|
Kite-freeP- andQ-polynomial schemes |
|
| Authors: | Chih-Wen Weng |
| Institution: | (1) Department of Mathematics, University of Wisconsin, 480 Lincoln Dr., 53706 Madison, WI, USA |
| Abstract: | LetY = (X, {R
i
}
o id) denote aP-polynomial association scheme. By a kite of lengthi (2 i d) inY, we mean a 4-tuplexyzu (x, y, z, u  X) such that(x, y) R
1,(x, z) R
1,(y, z) R
1,(u, y) R
i–1,(u, z) R
i–1,(u, x) R
i. Our main result in this paper is the following. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |