Rocky Mountain Journal of Mathematics

Jordan derivations of incidence algebras

Zhankui Xiao

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Let $\mathcal{R}$ be a commutative ring with identity and $I(X,\mathcal{R})$ the incidence algebra of a locally finite pre-ordered set $X$. In this note, we characterize the derivations of $I(X,\mathcal{R})$ and prove that every Jordan derivation of $I(X,\mathcal{R})$ is a derivation, provided that $\mathcal{R}$ is $2$-torsion free.

Article information

Rocky Mountain J. Math., Volume 45, Number 4 (2015), 1357-1368.

First available in Project Euclid: 2 November 2015

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Digital Object Identifier

Mathematical Reviews number (MathSciNet)

Zentralblatt MATH identifier

Primary: 16W10: Rings with involution; Lie, Jordan and other nonassociative structures [See also 17B60, 17C50, 46Kxx] 16W25: Derivations, actions of Lie algebras 47L35: Nest algebras, CSL algebras

Derivation Jordan derivation incidence algebra


Xiao, Zhankui. Jordan derivations of incidence algebras. Rocky Mountain J. Math. 45 (2015), no. 4, 1357--1368. doi:10.1216/RMJ-2015-45-4-1357.

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