4 citations · 6 across the 3 of their papers we have counts for
3 papers
math.CO2023★ 1 cited
On Cover-Free Families
Ruizhong Wei
Cover-free families were considered from different subjects by numerous researchers. Recently, cover-free families are also found useful in cryptography. In this paper, we use an u…
math.CO2016★ 4 cited
New Existence and Nonexistence Results for Strong External Difference Families
Jingjun Bao, Lijun Ji, Ruizhong Wei +1
In this paper, we use character-theoretic techniques to give new nonexistence results for -strong external difference families (SEDFs). We also use cyclotomic classes to…
math.CO2014★ 1 cited
Semi-cyclic holey group divisible designs with block size three and applications to sampling designs and optical orthogonal codes
Tao Feng, Xiaomiao Wang, Ruizhong Wei
We consider the existence problem for a semi-cyclic holey group divisible design of type (n,m^t) with block size 3, which is denoted by a 3-SCHGDD of type (n,m^t). When t is odd an…