Tableaux de Young gauches
The concept of cutting vectors for vector systems in the Euclidean plane.
The Friendship Theorem
In this article we prove the friendship theorem according to the article [1], which states that if a group of people has the property that any pair of persons have exactly one common friend, then there is a universal friend, i.e. a person who is a friend of every other person in the group
The intersection numbers of a complex.
The largest intersection lattice of a discriminantal arrangement.
The problem of kings.
The problem of the kings.
The strongly perfect lattices of dimension
This paper classifies the strongly perfect lattices in dimension . There are up to similarity two such lattices, and its dual lattice.
There are ternary circular square-free words of length for 18.
Three-dimensional pseudomanifolds on eight vertices.
Threshold functions for the bipartite Turán property.
Translational hulls and block designs.
Translations of Symmetric and Complete Nets.
Transversal designs and partitions associated with Frobenius groups.
Triples, current graphs and biembeddings.