made of quarks and antiquarks of the same flavor. This generalization is based on the
symmetrization of the N-body wave function with respect to the symmetric group using the
Barnea and Novoselsky algorithm. The formalism is applied to study four-quark systems by
means of a constituent quark model successful in the description of the two-and three-quark
systems. The results are compared to those obtained by means of variational approaches …