$2$-Local Derivations on Finitary Incidence Algebras

Authors

  • Majed Zailaee King Abdulaziz University
  • Mohd Arif Raza King Abdulaziz University
  • Abdul Khan King Abdulaziz University

DOI:

https://doi.org/10.29020/nybg.ejpam.v19i2.7218

Keywords:

Finitary incidence algebra, local derivation, functional identities

Abstract

 Let \( P \) be a partially ordered set and \( R \) a commutative ring with identity. This paper investigates the finitary incidence algebra \( FI(P, R) \) and demonstrates that every \( R \)-linear local derivation on \( FI(P, R) \) is a derivation. Furthermore, we establish that when \( R \) possesses characteristic zero, every \( 2 \)-local derivation on \( FI(P, R) \) is also a derivation. Our proof builds upon functional identities and integrates insights from generalized Witt algebras. By examining the idempotent structure of \( FI(P, R) \), we show that \( 2 \)-local derivations do not exhibit any proper non-linear behavior.

References

Published

2026-07-28

Issue

Section

Algebra

How to Cite

$2$-Local Derivations on Finitary Incidence Algebras. (2026). European Journal of Pure and Applied Mathematics, 19(2), 7218. https://doi.org/10.29020/nybg.ejpam.v19i2.7218