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arXiv 1210.6399math.QAmath.CO
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路径量子矩阵

Quantum Matrices by Paths

Karel Casteels

摘要:

本文从组合的观点研究无限域K上mxn矩阵的量子坐标环(也称量子矩阵)及其环面不变素理想.本文的第一部分证明了这个传统上由生成元和关系定义的代数,可以利用某个有向图中的路来看作量子环面的子代数。粗略地说,我们将量子矩阵的每个生成元视为图中路径的和,每条路径被分配给量子环面的一个元素。量子矩阵的关系,然后自然出现考虑相交的路径。这一观点与Cauchon的删除-求导算法密切相关。本文的第二部分是将路的观点应用于量子矩阵的环面不变素理想理论。我们证明了Goodearl和Lenagan的一个猜想:当量子参数q是非单位根时,所有这样的素理想都有由量子子式组成的生成集。以前,这个结果只适用于char(K)=0和q超越Q。我们的策略是证明在给定的环面不变理想中的量子子式形成Grobner基。

英文摘要:

We study, from a combinatorial viewpoint, the quantized coordinate ring of mxn matrices over an infinite field K (also called quantum matrices) and its torus-invariant prime ideals. The first part of this paper shows that this algebra, traditionally defined by generators and relations, can be seen as subalgebra of a quantum torus by using paths in a certain directed graph. Roughly speaking, we view each generator of quantum matrices as a sum over paths in the graph, each path being assigned an element of the quantum torus. The quantum matrices relations then arise naturally by considering intersecting paths. This viewpoint is closely related to Cauchon's deleting-derivations algorithm. The second part of this paper is to apply the paths viewpoint to the theory of torus-invariant prime ideals of quantum matrices. We prove a conjecture of Goodearl and Lenagan that all such prime ideals, when the quantum parameter q is a non-root of unity, have generating sets consisting of quantum minors. Previously, this result was known to hold only for char(K)=0 and q transcendental over Q. Our strategy is to show that the quantum minors in a given torus-invariant ideal form a Grobner basis.

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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