Complexity factors for static axial system in self-interacting Brans-Dicke gravity

This paper explores the physical attributes of a static axial source that induce complexity within the fluid in the background of self-interacting Brans-Dicke theory. Bel's approach is used to split the Riemann tensor and construct structure scalars that involve physical features of the fluid in the presence of scalar field. Using the evolution equations derived from Bianchi identities as well as structure scalars, five complexity factors are identified which include constraints on the scalar field. Finally, the conditions of vanishing complexity are used to present solutions for an anisotropic inhomogeneous spheroid. It is concluded that scalar field is an additional source of complexity.