What the study found: The paper shows that for every singular cardinal there exists a valuation domain that is strictly (<aleph_alpha)-noetherian, and for every regular cardinal there exists a valuation domain that is strictly (<aleph_alpha^+)-noetherian.
Why the authors say this matters: The authors say this gives a positive answer to a problem posed by Mazari–Armida under certain set theory assumptions. The study suggests this addresses the existence question for parameterized noetherian rings at the stated cardinal levels.
What the researchers tested: The note studies left strictly (<aleph_alpha)-noetherian rings, meaning rings in which every ideal is generated by fewer than aleph_alpha elements, and looks for valuation domains with this property. The argument is organized around singular and regular cardinals.
What worked and what didn't: The abstract states that the existence result holds: for singular cardinals, such a valuation domain exists with the stated strict (<aleph_alpha)-noetherian property, and for regular cardinals, a corresponding strictly (<aleph_alpha^+)-noetherian valuation domain exists. No negative cases or failures are described in the abstract.
What to keep in mind: The abstract mentions that the answer is obtained under certain set theory assumptions, but it does not specify those assumptions here. It also does not provide details of the proof or describe any limitations beyond that scope.
Key points
- The paper proves existence results for valuation domains at two cardinal settings: singular and regular cardinals.
- A left strictly (<aleph_alpha)-noetherian ring is one whose ideals are generated by fewer than aleph_alpha elements.
- For singular cardinals, the authors find a valuation domain that is strictly (<aleph_alpha)-noetherian.
- For regular cardinals, they find a valuation domain that is strictly (<aleph_alpha^+)-noetherian.
- The authors say this answers a problem posed by Mazari–Armida under certain set theory assumptions.
Disclosure
- Research title:
- Existence of strictly parameterized noetherian valuation domains shown
- Authors:
- Xiaolei Zhang
- Institutions:
- Tianshui Normal University
- Publication date:
- 2026-04-20
- OpenAlex record:
- View
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