We prove some conjectures concerning a combinatorial problem that arises in the model-theoretic investigation of wreath products. ## 1999 Academic Press We denote the least such d by $(r, n). The above problem arises in connection with the study of what is called the arity of a finite permutation
Combinatorial problems on the existence of large submatrices I
β Scribed by H. Burkill; L. Mirsky
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 951 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
Let M be a class of matrices, M* a proper subclass of M, and $(n) = $(y6; M, M*) the largest integer k with the property that every n x n matrix of class M possesses a k x k submatrix of class M*. In the present paper we seek to estimate $(n) when n is large for two particular specifications of the pair of classes M, M*.
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π SIMILAR VOLUMES
## Abstract A set of trivial necessary conditions for the existence of a large set of __t__βdesigns, __LS__[N](__t,k,__Ξ½), is $N\big | {{\nu \hskip -3.1 \nu}-i \choose k-i}$ for __i__β=β0,β¦,__t__. There are two conjectures due to Hartman and Khosrovshahi which state that the trivial necessary condi