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Open Mathematics

formerly Central European Journal of Mathematics

Editor-in-Chief: Vespri, Vincenzo / Marano, Salvatore Angelo


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Volume 15, Issue 1

Issues

Volume 13 (2015)

On Jordan mappings of inverse semirings

Sara Shafiq / Muhammad Aslam
Published Online: 2017-09-14 | DOI: https://doi.org/10.1515/math-2017-0088

Abstract

In this paper, the notions of Jordan homomorphism and Jordan derivation of inverse semirings are introduced. A few results of Herstein and Brešar on Jordan homomorphisms and Jordan derivations of rings are generalized in the setting of inverse semirings.

Keywords: Inverse semiring; Jordan homomorphism; Jordan triple homomorphism; Jordan derivation; Jordan triple derivation

MSC 2010: 16Y60; 16W25

1 Introduction

Let (S, +, ⋅) be a semiring with commutative addition and an absorbing zero 0. A semiring S is called an inverse semiring [1] if for every aS there exists a unique element a′ ∈ S such that a + a′ + a = a and a′ + a + a′ = a′. Throughout this paper, S will represent an inverse semiring which satisfies the condition that for every aS, a + a′ is in the center of S. This class of inverse semirings, known as MA-semiring [2], is useful in developing the theory of commutators and investigating certain additive mappings in semirings. In this connection, commuting maps [3], skew-commuting maps [4], centralizers [5,6], dependent elements and free actions [7] have been studied. However, the theory of Jordan homomorphism and Jordan derivation of inverse semirings has been unexplored. According to [2], a commutator [. , .] in inverse semiring is defined as [x, y] = xy + ýx = xy + yx´. We will make use of commutator identities [xy, z] = x[y, z] + [x, z]y and [x, yz] = [x, y]z + y[x, z] (see [2]). By [2], an additive map d : SS is a derivation if d(ab) = d(a)b + ad(b), ∀ a, bS. S is prime if aSb = (0) implies that a = 0 or b = 0 and is semiprime if aSa = (0) implies that a = 0. S is n-torsion free if nx = 0, xS implies that x = 0.

The idea of Jordan homomorphism of rings arose initially in Ancochea’s study of semi-automorphisms [8,9]. Later on, Kaplansky [10], Hua [11] and Jacobson and Ricket [12] made contribution and took the subject up. In 1950’s, Herstein studied Jordan homomorphisms [13,14] and Jordan derivations [15] in prime rings. His results have a notable impact on the study of Jordan structure and Jordan mappings. Brešar [16,17,18], Baxer and Martindale [19] generalized Herstein’s work on semiprime rings.

In this paper, we introduce Jordan homomorphism and Jordan derivation in inverse semirings and generalize a few results of Herstein [13,15] and Brešar [16,17] in the setting of inverse semirings. We define Jordan homomorphism between the two inverse semirings as follows. Let S and T be inverse semirings then an additive mapping φ : ST is called a Jordan homomorphism if φ(ab + ba) + φ(a)φ(b)′ + φ(b)φ(a)′ = 0, ∀ a, bS. In section 2, we generalize remarkable result of Herstein [13] for inverse semirings as follows: every Jordan homomorphism of inverse semiring onto prime inverse semiring is either homomorphism or anti-homomorphism. In section 3, we define Jordan triple homomorphism ρ between inverse semirings S and T as an additive mapping such that ρ(aba) + ρ(a)ρ(b)ρ(a)′ = 0, ∀ a, bS. Brešar [17] showed that a Jordan triple homomorphism ϕ of a ring R onto a prime ring R of characteristic different from 2 is of the form ϕ = ± θ, where θ is a homomorphism or an anti-homomorphism of R onto R. We generalize this result for inverse semirings. In section 4, we introduce the notion of Jordan derivation of inverse semirings thereby extend a classical result of Brešar [16] as follows. Every Jordan derivation of a 2-torsion free inverse semiring is a derivation. In the last section, Jordan triple derivation of inverse semiring is considered and a Brešar’s result [17] is extended in semirings.

We need the following lemmas in our arguments.

Lemma 1.1

(Lemma 1.1, [5]). Let S be an inverse semiring and a, bS. If a + b = 0 then a = b′.

Lemma 1.2

Let S be a 2-torsion free semiprime inverse semiring. If a, bS are such that axb + bxa = 0, ∀xS then axb = bxa = 0.

Proof

Using Lemma 1.1 in axb + bxa = 0 we have axb = bxa′, xS. Thus (bxa) y(bxa) = b(xby)axa = axbybxa. Hence, 2 (bxa)y(bxa) = (axb + bxa)ybxa = 0, since S is 2-torsion free, bxa = 0. Similarly, we can show axb = 0, ∀xS. □

The following lemma is an extension of Lemma 3.10 of [20], in a canonical fashion.

Lemma 1.3

Let S be a 2-torsion free prime inverse semiring. If a, bS are such that axb + bxa = 0, ∀xS then either a = 0 or b = 0.

Lemma 1.4

(Lemma 1.5, [5]). Let S be a semiprime inverse semiring and f, g : S × SS biadditive mappings. If f(x, y)wg(x, y) = 0, ∀x, y, wS then f(x, y)wg(s, t) = 0, ∀x, y, s, t, wS.

2 Jordan homomorphism

We begin this section by introducing the notion of Jordan homomorphism of inverse semirings. Let S and T be inverse semirings, an additive mapping φ : ST is called Jordan homomorphism if φ(ab+ba)+φ(a)φ(b)+φ(b)φ(a)=0,a,bS(1)

Lemma 2.1

Let φ be a Jordan homomorphism of inverse semiring S into 2-torsion free inverse semiring T. Then for all a, b, cS the following statements are true:

  1. φ(a2) = φ(a)2

  2. φ(aba) = φ(a)φ(b)φ(a)

  3. φ(cba + abc) = φ(c)φ(b)φ(a) + φ(a)φ(b)φ(c)

Proof

Replacing b by a in (1) and then using Lemma 1.1 we obtain (i). For (ii); put b = ab + ba in (1), we have φ(a(ab + ba) + (ab + ba)a) + φ(a)φ(ab + ba)′ + φ(ab + ba)φ(a)′ = 0. In the view of Lemma 1.1 and (1), we can replace φ(ab + ba) by φ(a)φ(b) + φ(b)φ(a). Thus we have φ(a2b+ba2)+2φ(aba)+φ(a)φ(a)φ(b)+φ(a)φ(b)φ(a)+φ(a)φ(b)φ(a)+φ(b)φ(a)φ(a)=0

By (i) we have φ(aba)+φ(a)φ(b)φ(a)=0 and hence by Lemma 1.1, we conclude (ii). Linearizing the above relation we obtain φ(cba+abc)+φ(c)φ(b)φ(a)+φ(a)φ(b)φ(c)=0(2) thus by Lemma 1.1, we arrive at (iii). □

Following [13], we fix some notations; ab = φ(ab) + φ(a)φ(b)′ and ab = φ(ab) + φ(b)φ(a)′. Thus (1) can be written as ab+ba=0

Lemma 2.2

If φ is a Jordan homomorphism from an inverse semiring S to 2-torsion free inverse semiring T then abab=0=abab

Proof

We have, abab=φ(ab)φ(ab)+φ(ab)φ(b)φ(a)+φ(a)φ(b)φ(ab)+φ(a)φ(b)φ(b)φ(a)

By Lemma 2.1 (i) we get abab=φ(abab)+φ(ab)φ(b)φ(a)+φ(a)φ(b)φ(ab)+φ(a)φ(b2)φ(a)

Using Lemma 2.1 (ii) and (2) we arrive at abab = 0, as desired. Similarly, we can compute abab = 0. □

Lemma 2.3

Let φ be a Jordan homomorphism from inverse semiring S to 2-torsion free inverse semiring T. Then for any a, b, rS abφ(r)ab=abφ([a,b]r)andabφ(r)ab=φ([a,b]r)ab.

Proof

Consider, φ(r)ab = φ(r)φ(ab) + φ(r)φ(a)φ(b)′.

Applying Lemma 1.1 in (2) and then using it in the above relation, we obtain φ(r)ab=φ(r)φ(ab)+φ(b)φ(a)φ(r)+φ(rab+bar)

But φ(rab + bar)′ = φ(rab + (r + r′)ab + bar)′ = φ(rab + ab(r + r′) + bar)′ = φ(rab + abr)′ + φ(abr + bar′) = φ(r)φ(ab)′ + φ(ab)φ(r)′ + φ(abr + bar′). Thus we have, φ(r)ab = φ(r)(φ(ab) + φ(ab)′) + φ(b)φ(a)φ(r) + φ(ab)φ(r)′ + φ([a, b]r) = (φ(ab) + φ(ab)′)φ(r) + φ(b)φ(a)φ(r) + φ(ab)φ(r)′ + φ([a, b]r) = abφ(r) + φ([a, b]r). By Lemma 2.2 we obtain abφ(r)ab = abφ([a, b]r) and abφ(r)′ab + φ([a, b]r)ab = 0. □

Lemma 2.4

Let φ be a Jordan homomorphism from inverse semiring S to 2-torsion free inverse semiring T. If a, b, rS then φ([a,b]r)=φ(r)ab+abφ(r)andφ(r[a,b])=abφ(r)+φ(r)ab.

Proof

From (1), we can replace φ(ab + ba) by φ(a)φ(b) + φ(b)φ(a) ∀ a, bS. Using this together with Lemma 2.1 (iii), we have abφ(r) + φ(r)ab = φ(ab)φ(r) + φ(a)φ(b)φ(r)′ + φ(r)φ(ab) + φ(r)φ(b)φ(a)′ = φ(abr′ + rba′ + abr + rab) = φ(ab(r + r′) + rba′ + rab) = φ((r + r′)ab + rbá + rab) = φ(r[a, b]) Similarly, φ([a, b]r) = φ(r)ab + abφ(r). □

Theorem 2.5

Let φ be a Jordan homomorphism from inverse semiring S to 2-torsion free inverse semiring T. Then for all a, b, rS abφ(r)ab+abφ(r)ab=0.

Proof

Replacing r by [a, b]r in φ(r[a, b]) = abφ(r) + φ(r)ab we have φ([a,b]r[a,b])=abφ([a,b]r)+φ([a,b]r)ab

By Lemma 2.1 (ii) and Lemma 2.4, we get φ([a,b])φ(r)φ([a,b])=abφ(r)ab+abφ(r)ab

Now, φ([a, b]) = φ(ab + ab + ab′ + ba) = 2φ(ab) + φ(ab + ba)′ = 2φ(ab) + φ(a)φ(b) + φ(b)φ(a) = ab + ab.

Thus we have (ab+ab)φ(r)(ab+ab)=abφ(r)ab+abφ(r)ab which implies that abφ(r)ab+abφ(r)ab+abφ(r)ab+abφ(r)ab=abφ(r)ab+abφ(r)ab

Adding baφ(r)ab + baφ(r)ab on both sides of the above equation and using the fact that ab + ba = 0 = ab + ba, we get the required result. □

Theorem 2.6

Every Jordan homomorphism φ of S onto 2-torsion free prime inverse semiring T is either a homomorphism or an anti-homomorphism.

Proof

By Theorem 2.5 and Lemma 1.3 we have either ab = 0 or ab = 0. Thus by Lemma 1.1 either φ is a homomorphism or an anti-homomorphism. □

3 Jordan triple homomorphism

Let S and T be inverse semirings. An additive map ρ : ST is called Jordan triple homomorphism if ρ(aba)+ρ(a)ρ(b)ρ(a)=0,a,bS(3)

For the sake of convenience, we fix some notations G1(a,b,c)=ρ(abc)+ρ(a)ρ(b)ρ(c) andG2(a,b,c)=ρ(abc)+ρ(c)ρ(b)ρ(a)

Linearization of (3) gives ρ(abc+cba)+ρ(a)ρ(b)ρ(c)+ρ(c)ρ(b)ρ(a)=0(4) or G1(a,b,c)+G1(c,b,a)=0

Lemma 3.1

If ρ is a Jordan homomorphism of inverse semiring S onto 2-torsion free prime inverse semiring T then G1(a,b,c)ρ(x)G2(a,b,c)+G2(a,b,c)ρ(x)G1(a,b,c)=0,a,b,c,xS.

Proof

Replacing a by abc, b by x and c by cba in (4), we obtain ρ(abcxcba+cbaxabc)+ρ(abc)ρ(x)ρ(cba)+ρ(cba)ρ(x)ρ(abc)=0(5)

According to Lemma 1.1 and (4) we have ρ(cba)=ρ(abc)+ρ(a)ρ(b)ρ(c)+ρ(c)ρ(b)ρ(a) thus from (5) we get ρ(abcxcba+cbaxabc)+ρ(abc)ρ(x)ρ(abc)+ρ(abc)ρ(x)ρ(c)ρ(b)ρ(a)+ρ(abc)ρ(x)ρ(a)ρ(b)ρ(c)+ρ(abc)ρ(x)ρ(abc)+ρ(c)ρ(b)ρ(a)ρ(x)ρ(abc)+ρ(a)ρ(b)ρ(c)ρ(x)ρ(abc)=0(6)

Also, by definition of triple homomorphism and Lemma 1.1, we have ρ(abcxcba+cbaxabc)=ρ(a)ρ(b)ρ(c)ρ(x)ρ(c)ρ(b)ρ(a)+ρ(c)ρ(b)ρ(a)ρ(x)ρ(a)ρ(b)ρ(c)(7)

From (6) and (7) we obtain G1(a,b,c)ρ(x)G2(a,b,c)+G2(a,b,c)ρ(x)G1(a,b,c)=0 as desired. □

Theorem 3.2

Let ρ be a Jordan triple homomorphism of an inverse semiring onto 2-torsion free prime inverse semiring. Then ρ = ϕ or ρ = ϕ′, where ϕ is either a homomorphism or an anti-homomorphism.

Proof

By Lemmas 3.1 and 1.3, we have either G1(a, b, c) = 0 or G2(a, b, c) = 0. If G1(a, b, c) = 0 then ρ(abc) = ρ(a)ρ(b)ρ(c). Replacing b by bxa and c by b we get ρ(abxab)=ρ(a)ρ(b)ρ(x)ρ(a)ρ(b)(8)

Also, by definition of triple homomorphism we have ρ(abxab)+ρ(ab)ρ(x)ρ(ab)=0(9)

From (8) and (9) we get ρ(a)ρ(b)ρ(x)ρ(a)ρ(b)+ρ(ab)ρ(x)ρ(ab)=0(10)

If ba = ρ(ab) + ρ(a)ρ(b)′ and ba = ρ(ab) + ρ(a)ρ(b) then using (10) we have baρ(x)ba+baρ(x)ba={ρ(a)ρ(b)ρ(x)+ρ(a)ρ(b)ρ(x)}ρ(ab)+ρ(ab){ρ(x)ρ(a)ρ(b)+ρ(x)ρ(a)ρ(b)}

But ρ(x)ρ(a)ρ(b) = ρ(xab), thus we get baρ(x)ba+baρ(x)ba={ρ(abx)+ρ(a)ρ(b)ρ(x)}ρ(ab)+ρ(ab){ρ(xab)+ρ(x)ρ(a)ρ(b)}=0.

Hence, by Lemma 1.3 either ba = 0 or ba = 0. Therefore, either ρ(ab) = ρ(a)ρ(b) or ρ(ab) = ρ(a)ρ(b)′ for all a, bS.

On similar lines, we can show that if G2(a, b, c) = 0 then ρ(ab) = ρ(b)ρ(a) or ρ(ab) = ρ(b)ρ(a)′ for all a, bS. Thus ρ = ϕ or ρ = ϕ′, where ϕ is either a homomorphism or an anti-homomorphism. □

4 Jordan derivation

We define Jordan derivation of an inverse semiring S as an additive map d : SS such that d(x2)+d(x)x+xd(x)=0,xS(11) holds. For example, if R is a commutative ring and I(R) is semiring of all two sided ideals of R with respect to ordinary addition and product of ideals, and T is subsemiring of I(R) then S = {(r, I) : rR, IT} is an inverse semiring with respect to ⊕ and ⊙ defined as (r1, I) ⊕(r2, J) = (r1 + r2, I + J) and (r1, I)⊙(r2, J) = (r1r2, IJ) (see [4]).

If we fix a = (r, {0}) ∈ S then d(x) = [a, x], ∀xS is a Jordan derivation.

Lemma 4.1

If d is a Jordan derivation of S then for all x, yS the following statements hold:

  1. d(xyx) = d(x)yx + xd(y)x + xyd(x)

  2. d(xyz + zyx) = d(x)yz + xd(y)z + xyd(z) + d(z)yx + zd(y)x + zyd(x).

Proof

Linearization of (11) gives d(xy+yx)+d(y)x+d(x)y+xd(y)+yd(x)=0(12)

Replacing y by xy + yx in (12) we get d(x(xy+yx)+(xy+yx)x)+d(xy+yx)x+d(x)(xy+yx)+xd(xy+yx)+(xy+yx)d(x)=0(13)

By (12),(13) and Lemma 1.1 we have d(x2y+yx2)+2d(xyx)+2d(x)yx+2xd(y)x+2xyd(x)+d(y)x2+yd(x)x+d(x)xy+xd(x)y+x2d(y)+yxd(x)=0(14)

Replacing x by x2 in (12) we have d(x2y+yx2)+d(y)x2+d(x2)y+x2d(y)+yd(x2)=0

In the view of (11) and Lemma 1.1, we can replace d(x2) by d(x)x + xd(x) . Thus d(x2y+yx2)+d(y)x2+d(x)xy+xd(x)y+x2d(y)+yd(x)x+yxd(x)=0(15)

From (14) and (15) we have d(xyx)+d(x)yx+xd(y)x+xyd(x)=0(16) which gives (i). To obtain (ii), linearize (16) we have d(xyz+zyx)+d(x)yz+xd(y)+xyd(z)+d(z)yx+zd(y)x+zyd(x)=0(17) and hence (ii) follows by Lemma 1.1. This completes the proof. □

If we write xy for d(xy) + d(x)y′ + xd(y) then by (12) and Lemma 1.1, we have xy=yx(18)

Moreover, xy+z=xy+xz(19) holds for all x, yS.

Lemma 4.2

Let S be a 2-torsion free inverse semiring and d : SS be a Jordan derivation. Then xys[x,y]+[x,y]sxy=0.(20)x, y, sS.

Proof

Replacing y by ysy in (16) we get d(xysyx)+d(x)ysyx+xd(ysy)x+xysyd(x)=0(21)

Replacing x by y and y by xsx in (16) gives d(yxsxy)+d(y)xsxy+yd(xsx)y+yxsxd(y)=0(22)

Adding (21) and (22), we have d(xysyx+yxsxy)+d(x)ysyx+xd(ysy)x+xysyd(x)+d(y)xsxy+yd(xsx)y+yxsxd(y)=0 By (i) of Lemma 4.1, we have d(xysyx+yxsxy)+d(x)ysyx+xd(y)syx+xyd(s)yx+xysd(y)x+xysyd(x)+d(y)xsxy+yd(x)sxy+yxd(s)xy+yxsd(x)y+yxsxd(y)=0(23)

Replacing x by xy, y by s and z by yx in (17) we get d(xysyx+yxsxy)+d(xy)syx+xyd(s)yx+xysd(yx)+d(yx)sxy+yxd(s)xy+yxsd(xy)=0

From this, we have d(xysyx+yxsxy)+xyd(s)yx+yxd(s)xy=d(xy)syx+xysd(yx)+d(yx)sxy+yxsd(xy)(24) (24) (23) and (24) give d(xy)syx+xysd(yx)+d(yx)sxy+yxsd(xy)+d(x)ysyx+xd(y)syx+xysd(y)x+xysyd(x)+d(y)xsxy+yd(x)sxy+yxd(d)xy+yxsxd(y)=0 which can be written as 0 = xysyx + xysyx + yxsxy + yxsxy = xysyx + xysxy + yxsxy + xysxy.

Hence, xys[x, y] + [x, y]sxy = 0. □

Theorem 4.3

A Jordan derivation d on 2-torsion free inverse semiring S is a derivation.

Proof

To prove the theorem, we have to show that xy = 0 ∀x, yS.

By Lemmas 1.2 and 4.2, we get xys[x,y]=0=[x,y]sxy(25)

Replacing y by y + z in xys[x, y] = 0 and using it again, we have xys[x,z]+xzs[x,y]=0(26) which gives xys[x, z] = xzś[x, y]. Thus (xys[x, z])t(xys[x, z]) = xzś[x, y]txys[x, z] = 0, ∀ tS.

Semiprimeness of S gives xys[x,z]=0,x,y,z,sS(27)

Similarly, [x, z]sxy = 0.

By using the above technique on (27), we get xys[w,z]=0,x,y,z,s,wS(28)

Pre multiplying (28) by [w, z] and post multiplying it by xy, we get [w,z]xy=0,x,y,w,zS(29)

Therefore, [xy,t]r[xy,t]=xytr[xy,t]+txyr[xy,t]=0,rS which implies that [xy, t] = 0 or xyt + txy = 0. Adding txy on both sides of the last expression we have xyt + (t + t′)xy = xyt or xyt + xy(t + t′) = txy, ∀ tS. Thus xy is in the center of S.

From (18), we have 2(xy)2=xy(xy+yx)=xy{d(xy)+d(yx)+[y,d(x)]+[d(y),x]}(30) or 2(xy)2=xy{d[x,y]+[y,d(x)]+[d(y),x]}

Using (29) and the fact that xy is in center, we get 2(xy)2=xyd[x,y](31)

Also, xy[x, y] + [x, y]xy = 0 which gives d(xy[x,y]+[x,y]xy)=0(32)

Put x = xy and y = [x, y] in (12) and using (32), we obtain d(xy)[x,y]+xyd[x,y]+d[x,y]xy+[x,y]d(xy)=0

By (31), we have d(xy)[x, y] + [x, y]d(xy) + 4 (xy)2 = 0. Post multiplying last equation by xy, we have 4 (xy)3 = 0. Thus (xy)3 = 0.

Since xy is in the center of S so for tS, (xy)2r(xy)2 = (xy)3(xy)r = 0, rS. Thus (xy)2 = O. This implies that xy = 0, ∀x, yS, as required. □

5 Jordan triple derivation

An additive mapping d : SS is Jordan triple derivation if d(aba)+d(a)ba+ad(b)a+abd(a)=0(33)

Linearization of (33) gives d(abc+cba)+d(a)bc+ad(b)c+abd(c)+d(c)ba+cd(b)a+cbd(a)=0(34)

Put F1(a, b, c) = d(abc) + d(a)bc′ + ad(b)c′ + abd(c)′ and F2(a, b, c) = abc + cba′ then F1(a,b,c)+F1(c,b,a)=0(35)

Lemma 5.1

Let S be an inverse semiring. Then F1(a,b,c)xF2(a,b,c)+F2(a,b,c)xF1(a,b,c)=0 for all a, b, c, xS.

Proof can be obtained by simple modification of the proof of Lemma 3.1.

Theorem 5.2

Every Jordan triple derivation d of a 2-torsion free semiprime inverse semiring S is a derivation.

Proof

By Lemmas 5.l and 1.3, we have either F1(a, b, c) = 0 or F2(a, b, c) = 0. If F1(a, b, c) = 0 then d(abc)+d(a)bc+ad(b)c+abd(c)=0(36) which gives d(abc)=d(a)bc+ad(b)c+abd(c)(37)

Replacing b by bxa and c by b in (37), we get d(abxab)=d(a)bxab+ad(b)xab+abd(x)ab+abxd(a)b+abxad(b)(38)

Also, by definition of triple derivation we have d(abxab)+d(ab)xab+abd(x)ab+abxd(ab)=0(39)

From (38) and (39) we get (d(ab)+d(a)b+ad(b))xab+abx(d(ab)+d(a)b+ad(b))+abd(x)ab+abd(x)ab=0(40)

Applying Lemma 1.1 in (39) we get abd(x)ab=d(abxab)+d(ab)xab+abxd(ab)

Adding abd(x)ab′ on both sides we have abd(x)ab + abd(x)ab′ = 0. Thus from (40) we obtain (d(ab)+d(a)b+ad(b))xab+abx(d(ab)+d(a)b+ad(b))=0(41)

By Lemmas 1.2 and 1.4, we obtain (d(ab)+d(a)b´+ad(b))xcd=0,a,b,c,d,xS

Semiprimness of S implies that d(ab) + d(a)b′ + ad(b)′ = 0, this gives that d is a derivation.

If F2(a, b, c) = 0 then by Lemma 1.1, we have abc=cba,a,b,cS

Thus d(a)bc = cbd(a), ad(b)c = cd(b)a, abd(c) = d(c)ba. Hence from (34) 2d(abc)+2d(a)bc+2ad(b)c+2abd(c)=0

As concluded above, if d(abc) + d(a)bc′ + ad(b)c′ + abd(c)′ = 0 then d is a derivation. This completes the proof. □

Acknowledgement

We are thankful to the referees for their useful comments and suggestions.

References

  • [1]

    Karvellas P.H., Inversive semirings, J. Austral. Math. Soc., 1974, 18, 277-288 CrossrefGoogle Scholar

  • [2]

    Javed M.A., Aslam M., Hussain M., On condition (A2) of Bandlet and Petrich for inverse semirings, Int. Math. Forum, 2012, 7, 2903-2914 Google Scholar

  • [3]

    Javed M.A., Aslam M., Some commutativety conditions in prime MA-semirings, Ars Combin., 2014, 114, 373-384 Google Scholar

  • [4]

    Nadeem M., Aslam M., Javed M.A., On generalization of Breser theorems, Quasigroups Related Systems, 2016, 24, 123-128 Google Scholar

  • [5]

    Shafiq S., Aslam M., Javed M.A., On centralizer of semiprime inverse semirings, Discuss. Math. Gen. Algebra Appl., 2016, 36, 71-840 CrossrefGoogle Scholar

  • [6]

    Shafiq S., Aslam M., Centralizers on semiprime MA semiring, Quasigroups Related Systems, 2016, 24, 269-276 Google Scholar

  • [7]

    Shafiq S., Aslam M., Javed M.A., On dependent elements and free actions in inverse semirings, Int. Math. Forum, 2016, 11, 557 - 564 CrossrefGoogle Scholar

  • [8]

    Ancochea G., Le thtorime de von Staudt en geometrie projective quaiernionienne, J. Reine Angew. Math., 1942, 184, 192-198 Google Scholar

  • [9]

    Ancochea G., On semi-automorphisms of division algebras, Ann. of Math., 1947, 48, 147-154 CrossrefGoogle Scholar

  • [10]

    Kaplansky I., Semi-automorphisms of rings, Duke Math. J., 1947, 14, 521-527 CrossrefGoogle Scholar

  • [11]

    Hua L.K., On the automorphisms of a field, Proc. Natl. Acad. Sci. USA, 1949, 35, 386-389 CrossrefGoogle Scholar

  • [12]

    Jacobson N., Rickart C.E., Jordan homomorphisms of rings, Trans. Amer. Math. Soc., 1950, 69, 479-502 CrossrefGoogle Scholar

  • [13]

    Herstein I.N., Jordan homomorphisms, Trans. Amer. Math. Soc., 1956, 81, 331-351 CrossrefGoogle Scholar

  • [14]

    Herstein I.N., On a type of jordan mappings, An. Acad. Brasil. Ciênc., 1967, 39, 357-360 Google Scholar

  • [15]

    Herstein I.N., Jordan derivations of prime Rings, Proc. Amer. Math. Soc., 1957, 8, 1104-1110 CrossrefGoogle Scholar

  • [16]

    Bresar M., Jordan derivations on semiprime rings, Proc. Amer. Math. Soc., 1988, 104, 1003-1006 CrossrefGoogle Scholar

  • [17]

    Bresar M., Jordan mappings of semiprime rings, J. Algebra, 1989, 127, 218-228 CrossrefGoogle Scholar

  • [18]

    Bresar M., Jordan mappings of semiprime rings II, Bull. of the Austral. Math. Soc., 1991, 44, 233 - 238 CrossrefGoogle Scholar

  • [19]

    Baxter W.E., Martindale W.S., Jordan homomorphisms of semiprime rings, J. Algebra, 1979, 56, 457-471 CrossrefGoogle Scholar

  • [20]

    Herstein I.N., Topics in ring theory, University of Chicago Press, 1969. Google Scholar

About the article

Received: 2016-08-24

Accepted: 2017-06-20

Published Online: 2017-09-14


Citation Information: Open Mathematics, Volume 15, Issue 1, Pages 1123–1131, ISSN (Online) 2391-5455, DOI: https://doi.org/10.1515/math-2017-0088.

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© 2017 Shafiq and Aslam. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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