The Redner - Ben-Avraham - Kahng coagulation system with constant   coefficients: the finite dimensional case
  We study the behaviour as $t\to\infty$ of solutions $(c_j(t))$ to the Redner--Ben-Avraham--Kahng coagulation system with positive and compactly supported initial data, rigorously proving and slightly extending results originally established in [4] by means of formal arguments. 
F.P. da Costa, J.T. Pinto, R. Sasportes
math.CA