Autor:	James G. Raftery, J.E. Vandenberg
Rok vydání:	1993
Předmět:	Combinatorics Discrete mathematics Algebra and Number Theory Mathematics::Commutative Algebra Lattice (order) Idempotence Congruence relation Algebraic number Congruence lattice problem Mathematics
Zdroj:	Journal of Algebra. 162(1):95-106
ISSN:	0021-8693
DOI:	10.1006/jabr.1993.1244
Popis:	The equivalence of the following conditions on a chain L is proved: (1) L is algebraic; (2)There is a tight chain domain T (with identity) such that L is isomorphic to the chain of proper two-sided ideals of T and all two-sided ideals of T are idempotent; (3) L is isomorphic to the congruence lattice of a ring (not necessarily with identity).
Databáze:	OpenAIRE
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