Sao Paulo Journal of Mathematical Sciences, cilt.19, sa.2, 2025 (ESCI)
Let R be a noncommutative ring, and let S be an m-system of R. In this paper, we give more results on the concept of almost prime (right) ideals, that were introduced in Abouhalaka and Fındık (Serdica Math J 48:235–246, 2022), particularly, in (right) S-unital rings, local rings, and decomposable rings. In addition, we introduce the concept of almost right S-prime ideals, and we show how some findings regarding almost prime ideals can be derived as corollaries of almost right S-prime ideals. Additionally, we show how almost right S-prime ideals behave in related rings such as homomorphic images, quotient rings, and decomposable rings. Finally, we construct almost right S-prime ideals using the Nagata method of Idealization.