Volume 123, Numbers 1-3, December 1993
: The number of degree restricted maps on general surfaces.
: Bounds of eigenvalues of graphs.
, Jiayu Shao
: The index set problem for Boolean (or nonnegative) matrices.
: On functional equations arising from map enumerations.
, Weixuan Li
: The density of a maximum minimal cut in the subset lattice of a finite set is almost one.
: A combinatorial formula relating to Hirota's bilinear equations.
: Anzahl theorems in finite singular symplectic, unitary and orthogonal geometries.
, Ju-Yong Xu
: Cycle index of direct product of permutation groups and number of equivalence classes of subsets of Zv.
: Some recent developments on BIBDs and related designs.