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Decompositions in complete lattices III. Unique irredundant decompositions and convex geometries
M. V. Schwidefskyab a Sobolev Institute of Mathematics, pr. Akad. Koptyuga 4, Novosibirsk, 630090 Russia
b Novosibirsk State University, ul. Pirogova 1, Novosibirsk, 630090 Russia
Abstract:
We give a characterization of complete strongly dually atomic lattices having unique irredundant decompositions which are also canonical. It is shown that all known characterizations of lattices with unique irredundant decompositions are a consequence of this result. In addition, upper continuous closure lattices of convex geometries with (unique) irredundant decompositions are characterized.
Keywords:
closure space, convex geometry, irredundant decomposition, join-semidistributive lattice, locally distributive lattice, lower continuous lattice, minimal decomposition, semimodular lattice, strongly atomic lattice, upper continuous lattice, weakly atomic lattice.
Received: 05.04.2016 Revised: 10.11.2016
Citation:
M. V. Schwidefsky, “Decompositions in complete lattices III. Unique irredundant decompositions and convex geometries”, Algebra Logika, 56:5 (2017), 613–635; Algebra and Logic, 56:5 (2017), 409–424
Linking options:
https://www.mathnet.ru/eng/al819 https://www.mathnet.ru/eng/al/v56/i5/p613
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Abstract page: | 244 | Full-text PDF : | 30 | References: | 36 | First page: | 9 |
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