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math.CO2021★ 2 cited
Application of some techniques in Sperner Theory: Optimal orientations of vertex-multiplications of trees with diameter 4
W. H. W. Wong, E. G. Tay
Koh and Tay proved a fundamental classification of vertex-multiplications into three classes and . They also showed that any verte…
math.CO2020★ 2 cited
A complete characterisation of vertex-multiplications of trees with diameter 5
W. H. W. Wong, E. G. Tay
Koh and Tay introduced a new family of graphs, vertex-multiplications, as an extension of complete -partite graphs. They proved a fundamental classification of vertex-mu…
math.CO2020★ 3 cited
On Cross-intersecting Sperner Families
W. H. W. Wong, E. G. Tay
Two sets and are said to be cross-intersecting if for all and . Given two cross-intersecting S…