DM
2008
13 years 5 months ago
2008
By the relationship between the Walsh spectra at partial points and the Walsh spectra of its sub-functions, by the action of general linear group on the set of Boolean functions, ...
DM
2008
13 years 5 months ago
2008
LR design is introduced by the second author in his recent paper, and it plays a very important role in the construction of LKTS (a large set of disjoint Kirkman triple system). I...
DM
2008
13 years 5 months ago
2008
DM
2008
13 years 5 months ago
2008
A weighted graph is one in which every edge e is assigned a nonnegative number w(e), called the weight of e. The weight of a cycle is defined as the sum of the weights of its edge...
DM
2008
13 years 5 months ago
2008
A simple graph G is k-ordered (respectively, k-ordered hamiltonian), if for any sequence of k distinct vertices v1, . . . , vk of G there exists a cycle (respectively, hamiltonian...
DM
2008
13 years 5 months ago
2008
Many interesting combinatorial objects are enumerated by the k-Catalan numbers, one possible generalization of the Catalan numbers. We will present a new combinatorial object that...
DM
2008
13 years 5 months ago
2008
DM
2008
13 years 5 months ago
2008
DM
2008
13 years 5 months ago
2008
DM
2008
13 years 5 months ago
2008
A sequence d = (d1, d2,