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搜索区传递2-(q,4,1)设计
引用本文:丁士锋,丁胜利.搜索区传递2-(q,4,1)设计[J].数学理论与应用,2008,28(3):116-119.
作者姓名:丁士锋  丁胜利
作者单位:[1]中南大学数学科学与计算技术学院,长沙 410083 [2]常德市鼎城区教育局,常德 415113
摘    要:对于区传递但非旗传递的可解2-(q,4,1)设计,Camina指出,当q=13,37,61,109,157,181时有具体的例子,但是否有更多的q产生具体例子有待研究。主要结果:设q是素数幂且q=13(mod24),则对于每个q〈2000,总存在区传递但非旗传递的2-(q,4,1)设计。

关 键 词:区传递  设计  可解

Search Block-transitive 2-(q,4,1) Designs
Ding Shifeng Ding Shengli.Search Block-transitive 2-(q,4,1) Designs[J].Mathematical Theory and Applications,2008,28(3):116-119.
Authors:Ding Shifeng Ding Shengli
Institution:Ding Shifeng1 Ding Shengli2
Abstract:For the 2 - (q, 4, 1 ) designs admitting a soluble block - transitive, but non flagtransitive autornorphism group, Camina commented that there are concrete examples if q = 13,37,61,109,157,or 181 ,but it remains unclear whether there are other such prime powers q or not. Main result: Suppose q is a prime power with q= 13 (mod24). Then for every q 〈 2000,there exists a 2 - ( q, 4, 1 ) design which has a solvable block - transitive but non flag - transitive automorphism group.
Keywords:Block-transitive Design Solvable
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