English

On $\ast $-Semi Homogeneous Domains

Commutative Algebra 2018-02-26 v1

Abstract

Let \ast be a finite character star operation defined on an integral domain D.D. Call a nonzero \ast -ideal II of finite type a \ast -homogeneous (\ast -homog) ideal, if IDI\subsetneq D and (J+K)D(J+K)^{\ast }\neq D for every pair DJ,KID\supsetneq J,K\supseteq I of proper \ast -ideals of finite type.. Call an integral domain DD a \ast -Semi Homogeneous Domain (\ast -SHD) if every proper principal ideal xDxD of DD is expressible as a \ast -product of finitely many \ast -homog ideals. We show that a \ast -SHD contains a family F\mathcal{F} of prime ideals such that (a) D=PFDP,D=\cap_{P\in \mathcal{F}}D_{P}, a locally finite intersection and (b) no two members of F\mathcal{F} contain a common non zero prime ideal. The \ast -SHDs include h-local domains, independent rings of Krull type, Krull domains, UFDs etc. We show also that we can modify the definition of the \ast -homog ideals to get a theory of each special case of a \ast -SH domain.

Keywords

Cite

@article{arxiv.1802.08353,
  title  = {On $\ast $-Semi Homogeneous Domains},
  author = {Daniel D. Anderson and Muhammad Zafrullah},
  journal= {arXiv preprint arXiv:1802.08353},
  year   = {2018}
}
R2 v1 2026-06-23T00:30:55.352Z