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math.CO2013
Combinatorial constructions for optimal two-dimensional optical orthogonal codes with = 2
Tao Feng, Yanxun Chang
In this paper, we are concerned about optimal two-dimensional optical orthogonal codes with = 2. Some combinatorial constructions are presented and many infinite families of op…
math.CO2013★ 19 cited
Semi-cyclic holey group divisible designs with block size three
Tao Feng, Xiaomiao Wang, Yanxun Chang
In this paper we discuss 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). Whe…