Results 11 to 20 of about 278 (249)

Commutativity of Prime Gamma Rings with Left Centralizers

open access: yesJournal of Scientific Research, 2013
Let M be a G-ring. If M satisfies the condition (*) xaybz = xbyaz for all x, y, zÎM, a, bÎG, then we investigate commutativity of prime G-rings satisfying certain identities involving left centralizer. Keywords: Prime G-ring; Derivation; Generalized derivation; Left centralizer. © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online)
A. C. Paul, K. K. Dey
openaire   +3 more sources

A characterization of jordan left ∗ -centralizers via skew lie and jordan products

open access: yes, 2022
WOS:000744369500001Let n≥ 1 be a fixed integer and R be a ring with involution ‘∗ ’. For any two elements x and y in R, the n-skew Lie product and n-skew Jordan product are given by ▿ [x, y] n= ▿ [x, ▿ [x, y] n-1] with ▿[x,y]0=y,▿[x,y]1=▿[x,y]=xy-yx∗,▿[x,
Abbasi, Adnan   +4 more
core   +2 more sources

Left centralizers of an $H\sp{\ast} $-algebra [PDF]

open access: yesProceedings of the American Mathematical Society, 1974
Gregory F. Bachelis, James W. McCoy
openaire   +2 more sources

Characterization of prime rings having involution and centralizers

open access: yes, 2023
The major goal of this paper is to study the commutativity of prime rings with involution that meet specific identities using left centralizers. The results obtained in this paper are the generalization of many known theorems.
Arshad Madni   +9 more
core   +1 more source

Central Extension of Left Alternative Algebras and the Second Cohomology Group [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2021
The purpose of this paper is to prove that the second cohomology group of a left alternative algebra A over an algebraically closed field of characteristic 0 can be interpreted as the set of equivalent classes of one‐dimensional central extensions of A.
openaire   +2 more sources

On ?-centralizers of semiprime rings

open access: yes, 2007
Let R be a semiprime 2-torsion free ring, and let ? be an endomorphism of R. Under some conditions we prove that a left Jordan ?-centralizer of R is a left ?-centralizer of R. Under the same conditions we also prove that a Jordan ?-centralizer of R is a ?
Albas, E., Albaş E.
core   +1 more source

Free actions on semiprime rings [PDF]

open access: yes, 1973
summary:We identify some situations where mappings related to left centralizers, derivations and generalized $(\alpha ,\beta )$-derivations are free actions on semiprime rings. We show that for a left centralizer, or a derivation $T$, of a semiprime ring
Samman, Mohammad S.   +4 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Nilpotency in groups with the minimal condition on centralizers

open access: yes, 1999
The Sylow-2-subgroups of a periodic group with minimal condition on centralizers are locally finite and conjugate. The same holds for the Sylow-p-subgroups for any prime p, provided the subgroups generated by any two p-elements of the group are finite ...
Wagner, Frank O., Wagner, Frank O
core   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási   +14 more
wiley   +1 more source

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