ON LIFTING OF STABLE RANGE ONE ELEMENTS


Altun-Ozarslan M. , Ozcan A. Ç.

JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY, cilt.57, ss.793-807, 2020 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 57 Konu: 3
  • Basım Tarihi: 2020
  • Doi Numarası: 10.4134/jkms.j190382
  • Dergi Adı: JOURNAL OF THE KOREAN MATHEMATICAL SOCIETY
  • Sayfa Sayıları: ss.793-807

Özet

Stable range of rings is a unifying concept for problems related to the substitution and cancellation of modules. The newly appeared element-wise setting for the simplest case of stable range one is tempting to study the lifting property modulo ideals. We study the lifting of elements having (idempotent) stable range one from a quotient of a ring R modulo a two-sided ideal I by providing several examples and investigating the relations with other lifting properties, including lifting idempotents, lifting units, and lifting of von Neumann regular elements. In the case where the ring R is a left or a right duo ring, we show that stable range one elements lift modulo every two-sided ideal if and only if R is a ring with stable range one. Under a mild assumption, we further prove that the lifting of elements having idempotent stable range one implies the lifting of von Neumann regular elements.