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首页> 外文期刊>Journal of Algebra >Representing congruence lattices of lattices with partial unary operations as congruence lattices of lattices. I. Interval equivalence
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Representing congruence lattices of lattices with partial unary operations as congruence lattices of lattices. I. Interval equivalence

机译:用部分一元运算将晶格的同余格表示为晶格的同余格。一,间隔对等

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Let L be a bounded lattice, let [a, b] and [c, d] be intervals of L, and let phi:[a, b] --> [c, d] be an isomorphism between these two intervals. Let us consider the algebra L (φ) over left right arrow = (L; boolean AND,boolean OR, phi,phi(-1)), which is a lattice with two partial unary operations. We construct a bounded lattice K (in fact, a convex extension of L) such that the congruence lattice of L (φ) over left right arrow is isomorphic to the congruence lattice of K, and extend this result to (many) families of isomorphisms. This result presents a lattice K whose congruence lattice is derived from the congruence lattice of L in a novel way. (C) 2003 Elsevier Inc. All rights reserved. [References: 21]
机译:令L为有界晶格,令[a,b]和[c,d]为L的间隔,令phi:[a,b]-> [c,d]为这两个间隔之间的同构。让我们考虑左上右箭头=(L;布尔AND,布尔OR,phi,phi(-1))上的代数L(φ),它是具有两个部分一元运算的格。我们构造一个有界格K(实际上是L的凸扩展),以使L(φ)在左向右箭头上的全等格与K的全等格同构,并将此结果扩展到(许多)同构族。该结果提供了一种格子K,其K的同余格以新颖的方式从L的同余格导出。 (C)2003 Elsevier Inc.保留所有权利。 [参考:21]

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