Strengthening Or Weakening Of Gravitational Force

The following is an ansantz (meaning that it is very simple and obvious), yet, I thought that it is needed here -- just to be mentioned as a fundamental basis for discussion.  As we all know, gravity comes in waves. Waves may bear wave cancellation.  Waves may bear wave reinforcement.  More often than not -- any given region will tend to bear both a certain amount of both gravity wave cancellation, And a certain amount of gravity wave reinforcement.  A region of space that works to bear relatively little net gravity, will tend to bear more gravity wave cancellation.  However, a region of space that works to bear an extreme amount of net gravity, will tend to bear more gravity wave reinforcement.  Near black-holes then, there tends to be a a tremendous amount of gravity wave reinforcement. 
I will continue with the suspense later!  To Be Continued!  Sincerely, Samuel David Roach.