MONATSHEFTE FUR MATHEMATIK, cilt.173, sa.2, ss.161-174, 2014 (SCI-Expanded)
We prove that the adjoint of a continuous homogeneous polynomial between Banach spaces belongs to a given operator ideal if and only if admits a factorization where the adjoint of the linear operator belongs to . Several consequences of this factorization are obtained, for example we characterize the polynomials whose adjoints are absolutely -summing.