  The four-neutron system is studied using exact continuum equations for
transition operators and solving them in the momentum-space framework. A
resonant behavior is found for strongly enhanced interaction but not a the
physical strength, indicating the absence of an observable tetraneutron
resonance, in contrast to a number of earlier works. As the transition
operators acquire large values at low energies, it is conjectured that this
behavior may explain peaks in many-body reactions even without a resonance.
