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arXiv 1106.0950math.RAmath.RT
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关于单位元代数x^n=0的幂零度

On the nilpotency degree of the algebra with identity x^n=0

Artem A. Lopatin

摘要:

用C_{n,d}表示由d个元素生成的满足恒等式x^n=0的相对自由代数的幂零度。在基场特征p大于n/2的假设下,证明了C_{n,d} <n^{log_2(3d+2)+1}和C_{n,d} <4 2^{n/2} d.特别地,它建立了幂零度C_{n,d}具有多项式增长的情况下,生成器的数量d是固定的和p > n/2。对于p \neq 2,幂零度C_{4,d}被描述为对于所有d具有偏差4。作为应用,利用C_{n,d}建立了d矩阵GL(n)-不变量代数R^{GL(n)}的有限生成集.制定了几项计划。

英文摘要:

Denote by C_{n,d} the nilpotency degree of a relatively free algebra generated by d elements and satisfying the identity x^n=0. Under assumption that the characteristic p of the base field is greater than n/2, it is shown that C_{n,d}<n^{log_2(3d+2)+1} and C_{n,d}<4 2^{n/2} d. In particular, it is established that the nilpotency degree C_{n,d} has a polynomial growth in case the number of generators d is fixed and p > n/2. For p\neq2 the nilpotency degree C_{4,d} is described with deviation 4 for all d. As an application, a finite generating set for the algebra R^{GL(n)} of GL(n)-invariants of d matrices is established in terms of C_{n,d}. Several conjectures are formulated.

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。

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