6 papers
The Ramsey numbers for trees of order with maximum degree at least versus the wheel graph of order nine
Zhi Yee Chng, Thomas Britz, Ta Sheng Tan +1
The Ramsey numbers are determined for each tree graph of order and maximum degree equal to either or . These numbers indicate stron…
A collection of open problems in celebration of Imre Leader's 60th birthday
Rahil Baber, Natalie Behague, Asier Calbet +10
One of the great pleasures of working with Imre Leader is to experience his infectious delight on encountering a compelling combinatorial problem. This collection of open problems…
A Note on Hamiltonian-Intersecting Families of Graphs
Imre Leader, Žarko Ranđelović, Ta Sheng Tan
How many graphs on an -point set can we find such that any two have connected intersection? Berger, Berkowitz, Devlin, Doppelt, Durham, Murthy and Vemuri showed that the maximum…
Burnability of Double Spiders and Path Forests
Ta Sheng Tan, Wen Chean Teh
The burning number of a graph can be used to measure the spreading speed of contagion in a network. The burning number conjecture is arguably the main unresolved conjecture related…
Cycles in Oriented 3-graphs
Imre Leader, Ta Sheng Tan
An oriented 3-graph consists of a family of triples (3-sets), each of which is given one of its two possible cyclic orientations. A cycle in an oriented 3-graph is a positive sum o…
Traces Without Maximal Chains
Ta Sheng Tan
The trace of a family of sets on a set is . If is a family of -sets from an -set such that for an…