3 papers
math.CO2024
Some constructive results on Disjoint Golomb Rulers
Xiaodong Xu, Baoxin Xiu, Changjun Fan +1
A set of non-negative integers is a Golomb ruler if differences , for any , are all distinct.All finite Sidon sets are Golomb ruler…
math.CO2018
On a Diagonal Conjecture for Classical Ramsey Numbers
Meilian Liang, Stanisław Radziszowski, Xiaodong Xu
Let denote the classical -color Ramsey number for integers . The Diagonal Conjecture (DC) for classical Ramsey numbers poses that if $k_1, \cdot…
math.CO2017
A Note on Upper Bounds for Some Generalized Folkman Numbers
Xiaodong Xu, Meilian Liang, Stanisław Radziszowski
We present some new constructive upper bounds based on product graphs for generalized vertex Folkman numbers. They lead to new upper bounds for some special cases of generalized ed…