Browsing by Author "Kurtulmaz, Yosum"
Now showing items 1-10 of 10
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Almost unit-clean rings
Chen, H.; Köse, H.; Kurtulmaz, Yosum (Editura Academiei Romane, 2019)A ring R is almost unit-clean provided that every element in R is equivalent to the sum of an idempotent and a regular element. We investigate conditions under which a ring is almost unit-clean. We prove that every ring ... -
Duo property for rings by the quasinilpotent perspective
Harmancı, A.; Kurtulmaz, Yosum; Üngör, B. (Vasyl Stefanyk Precarpathian National University, 2021-03-16)In this paper, we focus on the duo ring property via quasinilpotent elements, which gives anew kind of generalizations of commutativity. We call this kind of ringsqnil-duo. Firstly, someproperties of quasinilpotents in a ... -
Local comparability of exchange ideals
Köse, H.; Kurtulmaz, Yosum; Chen, H. (Hacettepe University, 2019)An exchange ideal I of a ring R is locally comparable if for every regular x ∈ I there exists a right or left invertible u ∈ 1+I such that x = xux. We prove that every matrix extension of an exchange locally comparable ... -
A nil approach to symmetricity of rings
Üngör, B.; Köse, H.; Kurtulmaz, Yosum; Harmancı, A. (Allahabad Mathematical Society, 2018)We introduce a weakly symmetric ring which is a generalization of a symmetric ring and a strengthening of both a GWS ring and a weakly reversible ring, and investigate properties of the class of this kind of rings. A ring ... -
On π-Morphic modules
Harmanci, A.; Kose, H.; Kurtulmaz, Yosum (Hacettepe University, Department of Mathematics, 2013)Let R be an arbitrary ring with identity and M be a right R-module with S = End(MR). Let f ∈ S. f is called π-morphic if M/f n(M) ∼=rM(fn) for some positive integer n. A module M is called π-morphic if every f ∈ S is ... -
Reflexivity of rings via nilpotent elements
Harmancı, A.; Köse, H.; Kurtulmaz, Yosum; Üngör, B. (Union Matematica Argentina, 2020)An ideal I of a ring R is called left N-reflexive if for any a ∈ nil(R) and b ∈ R, aRb ⊆ I implies bRa ⊆ I, where nil(R) is the set of all nilpotent elements of R. The ring R is called left N-reflexive if the zero ideal ... -
Rings having normality in terms of the Jacobson radical
Köse, H.; Kurtulmaz, Yosum; Harmancı, A. (Springer, 2020)A ring R is defined to be J-normal if for any a,r∈Ra,r∈R and idempotent e∈Re∈R, ae=0ae=0 implies Rera⊆J(R)Rera⊆J(R), where J(R) is the Jacobson radical of R. The class of J-normal rings lies between the classes of weakly ... -
Rings in which elements are a sum of a central and a unit element
Kurtulmaz, Yosum; Halıcıoğlu, S.; Harmancı, A.; Chen, H. (The Belgian Mathematical Society, 2019)In this paper we introduce a new class of rings whose elements are a sum of a central and a unit element, namely a ring RR is called CUCU if each element a∈Ra∈R has a decomposition a=c+ua=c+u where cc is central and uu is ... -
Semicommutativity of amalgamated rings
Köse, H.; Kurtulmaz, Yosum; Üngör, B.; Harmancı, A. (Journal of Mathematical Research with Applications, 2018)In this paper, we study some cases when an amalgamated construction A ◃▹f I of a ring A along an ideal I of a ring B with respect to a ring homomorphism f from A to B, is prime, semiprime, semicommutative, nil-semicommutative ... -
Structure theory of central simple ℤd-graded algebras
Koç, C.; Kurtulmaz, Yosum (TÜBİTAK, 2012)This paper investigates the structure theory of ℤd- central simple graded algebras and gives the complete decomposition into building block algebras. The results are also applied to generalized Clifford algebras, which are ...