1.   Hence the frequency omega of eqn is an imaginary quantity and the amplitude of the disturbance is proportional to, with sigma real and positive.

2.   Omega is the ratio between the actual density of the universe and a value called the critical density that is required to support equilibrium.

3.   Omega is a resident company at the Cathedral of St. John the Divine in New York City, where it occasionally dances during worship services.

4.   Omega is uncomputable.

5.   There is no omega.