Quadratic color Hom-Lie algebras
  The purpose of this paper is to study quadratic color Hom-Lie algebras. We present some constructions of quadratic color Hom-Lie algebras which we use to provide several examples. We describe $T^\ast$-extensions and central extensions of color Hom-Lie algebras and establish some cohomological characterizations. 
F. Ammar, I. Ayadi, S. Mabrouk, A. Makhlouf
math.RA math.RT