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Group divisible designs with large block sizes

机译:将大块尺寸的可分割设计分组

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For positive integers n, k with , let , , and . Lee et al. used the inclusion-exclusion principle to show that the triple is a -GDD of type for where (Lee et al. in Des Codes Cryptogr, , 2017). They conjectured that is also a -GDD of type for any integer . In this paper, we use a similar construction and counting principles to show that there is a -GDD of type for any prime power q and any integers k, n with where . Consequently, their conjecture holds. Such a method is also generalized to yield a -GDD of type where and lambda(k) = Pi(k-1)(i=3) (q(n-)q(e+i-1))/(k-2)vertical bar and k + l = n + 1..
机译:对于n,k与,,和的正整数。 Lee等。运用包含-排除原理来表明三元组是-GDD类型的地方(Lee et al。in Des Codes Cryptogr,2017)。他们猜想对于任何integer,它也是-GDD类型。在本文中,我们使用类似的构造和计数原理来表明,对于任何素数q和任何带有k的整数k,n,都有-GDD类型。因此,他们的猜想成立。这种方法也可以概括为产生-GDD类型,其中和lambda(k)= Pi(k-1)(i = 3)(q(n-)q(e + i-1))/(k- 2)竖线和k + l <= n + 1。

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