Recent progress on orthogonal arrays

发布时间:2024-06-19浏览次数:66

题目 Recent progress on orthogonal arrays

报告人:曹海涛(南京师范大学)

时间202462114:50-15:50

地点36-510

摘要An orthogonal array of index unity, order $v$, degree $k$ and strength 3, or an OA$(3,k,v)$ in short, is a $k\times v^3$ array on $v$ symbols and in every $3\times v^3$ subarray, each 3-tuple column vector occurs exactly once. Few results are known about the existence of an OA$(3,k,v)$ for $k>4$. In this talk, we introduce a new combinatorial structure called 3-dimensions orthogonal complete large sets of disjoint incomplete Latin squares and use it to obtain some new infinite classes of OA$(3,k,v)$s for $k=5,6$.

报告人介绍:曹海涛,南京师范大学数学科学学院教授,博士生导师,强化培养学院副院长。19967月毕业于苏州大学,获学士学位。20027月毕业于苏州大学,获博士学位。20047月清华大学数学系博士后出站。主要研究方向为组合设计及其在编码密码中的应用,主持和参与多项国家自然科学基金,在正交阵列、三元系大集、可分解设计等离散结构的研究中取得过较好的研究成果。