Quotients of L-domains
2022
Abstract It is well known that the image of a bounded complete domain, respectively a continuous lattice T under a surjective map preserving infs of nonempty subsets and directed sups is a bounded complete domain, respectively a continuous lattice and a congruence relation on T is an equivalence relation on T and a subalgebra of T × T . In this paper, we propose some counterexamples to explain that these results do not persist in L -domains. The concepts of strong homomorphisms among L-domains and congruence relation on L-domains are introduced. We prove that the image of an L-domain under a surjective map which preserves infs of nonempty subsets bounded above and directed sups and satisfies an equation is an L-domain. Meanwhile, we obtain the quotients of L -domains. Moreover, we give the Isomorphism Theorem for L-domains.
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