Lie Groupoids and Generalized Almost Subtangent Manifolds
  In this paper, we show that there is a close relationship between generalized subtangent manifolds and Lie groupoids. We obtain equivalent assertions among the integrability conditions of generalized almost subtangent manifolds, the condition of compatibility of source and target maps of symplectic groupoids with symplectic form and generalized subtangent maps. 
Fulya Sahin
math.GT math.DG