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arXiv 0802.3703math.COcs.DM
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关于蛛网偏序集的关联代数描述

On incidence algebras description of cobweb posets

Ewa Krot-Sieniawska

摘要:

给出了任意蛛网偏序集的关联代数的Mobius函数及其它重要元素的显式表达式。为了做到这一点,人们使用克瓦希涅夫斯基的建设他的蛛网偏序集。这些蛛网偏序集的有向图表示构成了一个新发现的有序DAG类,命名为KoDAG,具有一种普遍性。也就是说,蛛网偏序集和KoDAG定义的双二分格是任何完备关系链的链环。

英文摘要:

The explicite formulas for Mobius function and some other important elements of the incidence algebra of an arbitrary cobweb poset are delivered. For that to do one uses Kwasniewski's construction of his cobweb posets . The digraph representation of these cobweb posets constitutes a newly discovered class of orderable DAG's named here down KoDAGs with a kind of universality now being investigated. Namely cobweb posets' and thus KoDAGs's defining di-bicliques are links of any complete relations' chains.

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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