Some differential identities on prime and semiprime rings and Banach algebras

2018 ◽  
Vol 68 (2) ◽  
pp. 305-313 ◽  
Author(s):  
Mohd Arif Raza ◽  
Mohammad Shadab Khan ◽  
Nadeem ur Rehman
2020 ◽  
pp. 77-83
Author(s):  
Mohammad Shadab Khan ◽  
Mohd Arif Raza ◽  
Nadeemur Rehman

Let R be a prime ring, I a nonzero ideal of R, d a derivation of R and m, n fixed positive integers. (i) If (d ( r ○ s)(r ○ s) + ( r ○ s) d ( r ○ s)n - d ( r ○ s))m for all r, s ϵ I, then R is commutative. (ii) If (d ( r ○ s)( r ○ s) + ( r ○ s) d ( r ○ s)n - d (r ○ s))m ϵ Z(R) for all r, s ϵ I, then R satisfies s4, the standard identity in four variables. Moreover, we also examine the case when R is a semiprime ring.


2018 ◽  
Vol 12 (8) ◽  
pp. 297-309
Author(s):  
Mohammad Shadab Khan ◽  
Mohd Arif Raza ◽  
Nadeem ur Rehman

2016 ◽  
Vol 47 (1) ◽  
pp. 111-124 ◽  
Author(s):  
Basudeb Dhara ◽  
Nurcan Argaç ◽  
Krishna Gopal Pradhan

Author(s):  
Vincenzo De Filippis ◽  
Nadeem UR Rehman ◽  
Abu Zaid Ansari

LetRbe a 2-torsion free ring and letLbe a noncentral Lie ideal ofR, and letF:R→RandG:R→Rbe two generalized derivations ofR. We will analyse the structure ofRin the following cases: (a)Ris prime andF(um)=G(un)for allu∈Land fixed positive integersm≠n; (b)Ris prime andF((upvq)m)=G((vrus)n)for allu,v∈Land fixed integersm,n,p,q,r,s≥1; (c)Ris semiprime andF((uv)n)=G((vu)n)for allu,v∈[R,R]and fixed integern≥1; and (d)Ris semiprime andF((uv)n)=G((vu)n)for allu,v∈Rand fixed integern≥1.


1966 ◽  
Vol 18 ◽  
pp. 823-831 ◽  
Author(s):  
E. H. Feller ◽  
E. W. Swokowski

Properties and characterizations for prime and semiprime rings have been provided by A. W. Goldie (2, 3). In a previous paper (1), the authors used the results of (2) to characterize prime and uniform prime modules. It is the aim of the present paper to generalize Goldie's work on semi-prime rings (3) to modules. In this setting certain new properties will appear.Notationally, in the work to follow, the symbol R always denotes a ring and all R-modules will be right R-modules.In the theory of rings an ideal C is said to be prime if and only if whenever AB ⊆ C for ideals A and B, then either A ⊆ C or B ⊆ C. A ring is prime if the zero ideal is prime.


2004 ◽  
Vol 2004 (39) ◽  
pp. 2097-2102 ◽  
Author(s):  
Muhammad Anwar Chaudhry ◽  
A. B. Thaheem

We study certain properties of derivations on semiprime rings. The main purpose is to prove the following result: letRbe a semiprime ring with centerZ(R), and letf,gbe derivations ofRsuch thatf(x)x+xg(x)∈Z(R)for allx∈R, thenfandgare central. As an application, we show that noncommutative semisimple Banach algebras do not admit nonzero linear derivations satisfying the above central property. We also show that every skew-centralizing derivationfof a semiprime ringRis skew-commuting.


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