摘要
组合设计理论是组合数学的一个重要分支,在密码与编码中有广泛的应用.文献[1]定义了两种新的组合设计:外差族(EDF)和外平衡不完全区组设计(EBIBD),但是该文献并没有对它们做出详细的研究.给出在整环上EBIBD的一个构造,并通过补设计的方法由EBIBD构造一个对称平衡不完全区组设计(BIBD),证明了一类EBIBD与拉丁方的等价性;最后讨论了在自同构意义下EBIBD的一些性质,以及EDF与EBIBD之间的联系.
Combinatorial designs is an important branch of Combinatorial mathematicas, and it is widely used in cryptography and coding theory [ 1], introduces two new types of combinatorial designs, which are called External difference family(EDF) and External balanced incomplete block design(EBIBD), but it does not give detailed research on these two designs. This paper presents a construction to EBIBD and uses EBIBD to construct symmetric BIBD by complementary design, it also proves an equivalence between some special EBIBD and Latin Square;Finaly, we discuss the automorphism property of EBIBD and the relationship between EDF and EBIBD.
出处
《漳州师范学院学报(自然科学版)》
2007年第4期31-36,共6页
Journal of ZhangZhou Teachers College(Natural Science)
基金
漳州师院科研基金资助项目(SK05012)