2 papers
math.CO2026
Improved Bounds for Nested Orthogonal Arrays
Xiaodong Niu, Guangzhou Chen, Zihong Tian +1
Nested orthogonal arrays (NOAs) have found increasing application in various experimental design problems. A central challenge in this field is the derivation of lower bounds on th…
math.CO2022
More results on large sets of Kirkman triple systems
Yan Liu, Jianguo Lei
The existence of large sets of Kirkman triple systems (LKTSs) is one of the best-known open problems in combinatorial design theory. Steiner quadruple systems with resolvable deriv…