  We compare among themselves two different methods for the derivation of
results following from the requirement of polynomial boundedness of tree-level
chiral amplitudes. It is shown that the results of the algebraic approach are
valid also in the framework of the analytical one. This means that the system
of Sum Rules and Bootstrap equations previously obtained with the help of the
latter approach can be analyzed in terms of reducible representations of the
unbroken Chiral group with the known structure of the mass matrix.

High Energy Physics - Phenomenology