On the representations of the full matrix semigroup on homogeneous polynomials

On the representations of the full matrix semigroup on homogeneous polynomials
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关于齐次多项式上满矩阵半群的表示

DOI:
10.1016/0021-8693(86)90034-7
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发表时间:
1986
期刊:
影响因子:
0.9
通讯作者:
L. Krop
L. Krop
中科院分区:
数学3区
文献类型:
--
作者:
L. Krop

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本文主要研究特征p> 0的域上素域Zp中元素为n × n矩阵的全矩阵半群M(n,p)的表示.此外,它的大部分是有关一个相当经典的情况下,他们,即表示M(n,p)所提供的空间的齐次多项式。设B是2上的n维向量空间,. M(n,p)自然地作用于B。在固定了基x1,...,设一个特征为p的基域k,iW(n,p)在B上的作用可以唯一地提升到IV(l)= k@ B上的作用。w“'是简单的向量空间的所有线性形式在x1,...,X除以K更一般地,我们形成IV@),x中所有d次齐次多项式的向量空间,,.,X,在k上,并且将M(n,p)的自然表示提升到tid),d= i,2,.。这类M(n,p)模WCd'是我们研究的主要对象。更确切地说,我们将在这里处理以下问题:在什么条件下d和n的所有M(n,p)-子模的格W“”)是分配的?换句话说,问题是找出IV(d)和它的每个因子何时是无平方的。
The subject matter of this paper is a study of representations of the full matrix semigroups M (n, p) of n x n matrices with entries in the prime field Zp over a field of characteristic p> 0. Moreover the bulk of it is concerned with a rather classical case of them, namely, the representations of M (n, p) afforded by the spaces of homogenous polynomials. Let B be an n-dimensional vector space over 2,. M (n, p) acts naturally on B. Having fixed a basis x1,..., x, for B we simply identify M (n, p) with the set of all linear transformations on B, Let us fix a ground field k of characteristic p. The action of iW (n, p) on B can be lifted uniquely to the action on IV (l)= k@ B. w”’is simply the vector space of all linear forms in x1,..., X, over k. More generally we form IV@), the vector space of all homogeneous polynomials of degree d in x,,..., X, over k, and lift the natural representation of M (n, p) to tid), d= i, 2,.... These M (n, p) modules WCd’are the main object of our study. More exactly we will tackle here the following problem: Under what conditions on d and n the lattice of all M (n, p)-submodules of W “‘) is distributive? Put differently the problem is to find out when IV (d) and every of its factors are square free.