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MIX ★-Autonomous Quantales and the Continuous Weak Order

机译:混合★-自主量子传说和连续弱阶

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The set of permutations on a finite set can be given a lattice structure (known as the weak Bruhat order). The lattice structure is generalized to the set of words on a fixed alphabet Σ = { x, y, z,...}, where each letter has a fixed number of occurrences (these lattices are known as multinomial lattices and, in dimension 2, as lattices of lattice paths). By interpreting the letters x,y,z,... as axes, these words can be interpreted as discrete increasing paths on a grid of a d-dimensional cube, where d = card(∑). We show in this paper how to extend this order to images of continuous monotone paths from the unit interval to a d-dimensional cube. The key tool used to realize this construction is the quantale L_v(I) of join-continuous functions from the unit interval to itself; the construction relies on a few algebraic properties of this quantale: it is ★-autonomous and it satisfies the mix rule. We begin developing a structural theory of these lattices by characterizing join-irreducible elements, and by proving these lattices are generated from their join-irreducible elements under infinite joins.
机译:有限集上的置换集可以被赋予晶格结构(称为弱Bruhat阶)。格结构一般化为固定字母Σ= {x,y,z,...}上的一组单词,其中每个字母都有固定的出现次数(这些格称为多项式格,在维2中,作为晶格路径的晶格)。通过将字母x,y,z,...解释为轴,可以将这些单词解释为d维立方体的网格上离散的递增路径,其中d = card(∑)。我们在本文中展示了如何将此顺序扩展到从单位间隔到d维立方体的连续单调路径的图像。用于实现此构造的关键工具是从单位间隔到其自身的连续连接函数的量子L_v(I)。构造依赖于此量子量的几个代数性质:它是★自治的,并且满足混合规则。我们通过表征不可约连接元素开始发展这些晶格的结构理论,并证明这些晶格是在无限连接下由不可约连接元素生成的。

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