4 citations · 7 across the 7 of their papers we have counts for
7 papers
The distance signatures of the incidence graphs of affine resolvable designs
Jianmin Ma
In this note, we determined the distance signatures of the incidence matrices of affine resolvable designs. This proves a conjecture by Kohei Yamada.
Twice -polynomial distance-regular graphs of diameter 4
Jianmin Ma, Jack Koolen
It is known that a distance-regular graph with valency at least three admits at most two Q-polynomial structures. % In this note we show that all distance-regular graphs with d…
Nonexistence of Exceptional 5-class Association Schemes with Two -polynomial Structures
Jianmin Ma, Kaishun Wang
In [H. Suzuki, Association schemes with multiple -polynomial structures, J. Algebraic Combin. 7 (1998) 181-196], Suzuki gave a classification of association schemes with multipl…
Fissioned triangular schemes via sharply 3-transitive groups
Jianmin Ma, Kaishun Wang
n [D. de Caen, E.R. van Dam. Fissioned triangular schemes via the cross-ratio, {Europ. J. Combin.}, 22 (2001) 297-301], de Caen and van Dam constructed a fission scheme $\FT(q+1)$…
Suborbits of a point stabilizer in the orthogonal group on the last subconstituent of orthogonal dual polar graphs
Fenggao Li, Kaishun Wang, Jun guo +1
As one of the serial papers on suborbits of point stabilizers in classical groups on the last subconstituent of dual polar graphs, the corresponding problem for orthogonal dual pol…
Four-class Skew-symmetric Association Schemes
Jianmin Ma, Kaishun Wang
An association scheme is called skew-symmetric if it has no symmetric adjacency relations other than the diagonal one. In this paper, we study 4-class skew-symmetric association sc…