(v,4,λ)-PMD的嵌入

Embeddings of (ν,4,λ)-PMD

本文证明了当λ为偶数且α≥84时,对任何一给定的(μ,4,λ)PMD,该PMD可嵌某(?)((?),4,λ)PMD的元素条件是(?)≥3(?)。

It is shown that a given (ν,4,λ)-PMD,where λ is even and u≥84,can be embedded in some(ν, 4,λ)-PMD as a subdesign if and only if ν≥3u+1.