可分解不完全可分组设计的存在性
On Existence of Resolvable Incomplete Group Divisible Designs
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摘要: 可分解不完全可分组设计(Resolvable Incomplete Group Divisible Design 或 IRGDD)被广泛地用于构造其他组合设计中。在该文中,我们证明了除 u=6且 m ≡ n≡0(mod 2)外,一个型为(m ,n) u 的3‐IRGDD 存在的必要条件也是充分的。Abstract: Resolvable Incomplete Group Divisible Designs (IRGDDs ) are widely used in producing other combinatorial designs .In this paper ,it is proved that the necessary conditions for the existence of a 3 - IR‐GDD of type (m ,n) u are also sufficient except possibly only for u= 6 and m ≡ n≡ 0 (mod 2) .
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