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基于矩阵运算,给出任意双偶数阶和非素数阶幻方的新构造方法:1)由任一低阶m(m为偶数且m≠2)幻方生成一高阶2m阶幻方;2)利用已知的m(m≠2)阶和n(n≠2)阶两个幻方,构造任意的非素数mn阶幻方,加强一些条件后,进一步提出构造两类高级幻方(泛对角线幻方和关联幻方)的新方法. 相似文献
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徐向东 《数学的实践与认识》2021,(10):308-315
构造m=8n(n为正整数)阶完美富兰克林幻方,既有富兰克林幻方的弯曲对角线之和等于幻和L=m/2(m2+1)的性质,又有两条对角线与所有泛对角线之和都等于幻和L的性质,是正规的完美幻方.使用一种新的构造方法,首先构造三个4阶完美方阵(全对角线方阵),即方阵的每行、每列与每条对角线同每条泛对角线各数之和都等于定值,然后建... 相似文献
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The constructional methods of pandiagonal snowflake magic squares of orders 4m are established in paper [3]. In this paper, the constructional methods of pandiagonal snowflake magic squares of odd orders n are established with n = 6m l, 6m 5 and 6m 3, m is an odd positive integer and m is an even positive integer 9|6m 3. It is seen that the number sets for constructing pandiagonal snowflake magic squares can be extended to the matrices with symmetric partial difference in each direction for orders 6m 1 , 6m 5; to the trisection matrices with symmetric partial difference in each direction for order 6m 3. 相似文献
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徐向东 《数学的实践与认识》2021,(5):278-284
2017年詹森构造了 6个异基因的8阶二次幻方兼完美幻方,根据它们的特殊性质,创立用一个4阶矩阵代替原有元素的膨胀法,构造出16阶二次幻方兼完美幻方;并对另外2个具有相似性质的8阶二次幻方,也通过膨胀法构造出了 16阶二次幻方. 相似文献
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Constructing Pandiagonal Latin Squares from Linear Cellular Automaton on Elementary Abelian Groups 下载免费PDF全文
The constructed pandiagonal Latin squares by Hedayat's method are cyclic. During the last decades several authors described methods for constructing pandiagonal Latin squares that are semi‐cyclic. In this article, we have applied linear cellular automaton on elements of permutation elementary abelian p‐groups, which are ordered by the lexicographic ordering, and we proposed an algorithm for constructing noncyclic pandiagonal Latin squares of order , for prime . 相似文献
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当m和n为同奇或同偶的正整数且m,n≠1,2,3,6时,用m和n阶正交对角拉丁方及{0,1,…,mn-1)上的m×n幻矩与和阵,构作了mn阶标准二次幻方. 相似文献