In this paper we study the star operations on a pullback of integral domains. In particular, we characterize the star operations of a domain arising froma pullback of “a general type” by introducing new techniques for “projecting” and “lifting” star operations under surjective homomorphisms of integral domains. We study the transfer in a pullback (or with respect to a surjective homomorphism) of some relevant classes or distinguished properties of star operations such as v−, t−, w−, b−, d−, finite type, e.a.b., stable, and spectral operations. We apply part of the theory developed here to give a complete positive answer to a problem posed by D.F. Anderson in 1992 concerning the star operations on the “D +M” constructions.
Fontana, M., PARK MI, H. (2004). Star operations and pullbacks. JOURNAL OF ALGEBRA, 274, 387-421 [10.1016/j.jalgebra.2003.10.002].
Star operations and pullbacks
FONTANA, Marco;
2004-01-01
Abstract
In this paper we study the star operations on a pullback of integral domains. In particular, we characterize the star operations of a domain arising froma pullback of “a general type” by introducing new techniques for “projecting” and “lifting” star operations under surjective homomorphisms of integral domains. We study the transfer in a pullback (or with respect to a surjective homomorphism) of some relevant classes or distinguished properties of star operations such as v−, t−, w−, b−, d−, finite type, e.a.b., stable, and spectral operations. We apply part of the theory developed here to give a complete positive answer to a problem posed by D.F. Anderson in 1992 concerning the star operations on the “D +M” constructions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
