- 著者
-
Hiramine Yutaka
ヒラミネ ユタカ
平峰 豊
- 出版者
- Springer
- 雑誌
- Designs, Codes and Cryptography (ISSN:09251022)
- 巻号頁・発行日
- vol.56, no.1, pp.21-33, 2010-07
- 被引用文献数
-
2
It is well known that there exists a transversal design TD_λ[k; u] admitting a class regular automorphism group U if and only if there exists a generalized Hadamard matrix GH(u, λ) over U. Note that in this case the resulting transversal design is symmetric by Jungnickel's result. In this article we define a modified generalized Hadamard matrix and show that transversal designs which are not necessarily symmetric can be constructed from these under a modified condition similar to class regularity even if it admits no class regular automorphism group.