Space-time points are independence of each other. However, when a group of space-time points share approximately the same space domain, they form mass particles of matter. Sharing the same time domain (the same time axis), they form waves of fields and energies. When they share the same space-time domain, they form squares of energy as quantum fields or true positive and negative vacuum.
Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: ¶a(t)·¶r(t)=c²
When space-time points share the same space domain, it is expressed by position-momentum conjugates form of the uncertainty principle . When they share the same time domain, it is expressed by energy-time conjugates form of the uncertainty principle . The product of these two forms the sharing of the same space-time domain as quantum fields of second partial time derivative of square of energy .
Time independence: [∂E(g)]²=[∂F(a)×∂r(a)]·[∂F(b)×∂r(b)] and Mass independence: ¶a(t)·¶r(t)=c²
What is exactly your definition of domain? Do you apply to it any mathematics? Also, is the type of domain (temporal, spatial, spatio-temporal) an indicator of the charge of the space-time points (I can't remember what name you gave to the charge though)?