arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.4755math.RA
收藏

有限域上自由结合代数的极大T-空间

Maximal T-spaces of the free associative algebra over a finite field

Chuluun Bekh-Ochir, Stuart Rankin

摘要:

在早期的工作中,我们建立了对任何有限域k,在一个生成元x上的自由结合k-代数,记为k[x]_0,有无穷多个极大T-空间,但恰好有两个极大$理想(每个理想都是一个极大T-空间)。然而,除了这两个T-理想之外,还没有发现k[c]_0的极大T-空间的例子。本文给出了对每个有限域k,k[x]_0的真T-空间的无穷序列(其中没有一个是T-理想),每个真T-空间都有有限余维,并且对每个真T-空间都提供了T-空间本身的线性基和互补线性子空间的线性基.证明了序列中的第一个T-空间是k[x]_0的极大T-空间,从而给出了k[x]_0的极大T-空间不是极大T-理想的第一个例子.

英文摘要:

In earlier work, it was established that for any finite field k, the free associative k-algebra on one generator x, denoted by k[x]_0, had infinitely many maximal T-spaces, but exactly two maximal $ideals (each of which is a maximal T-space). However, aside from these two T-ideals, no examples of maximal T-spaces of k[c]_0 have been identified. This paper presents, for each finite field k, an infinite sequence of proper T-spaces of k[x]_0 (no one of which is a T-ideal), each of finite codimension, and for each one, both a linear basis for the T-space itself and a linear basis for a complementary linear subspace are provided. Morever, it is proven that the first T-space in the sequence is a maximal T-space of k[x]_0, thereby providing the first example of a maximal T-space of k[x]_0 that is not a maximal T-ideal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑