Subject: Negative Gravity

I have read about the 'negative gravity force' that is 

theoreticaly possible. eg as a force that could be used to keep a wormhole

inspace time open etc.



What are/is the properties of such negative gravity (pressure).

is it related to theoretical negative mass, or negative bending of space 

time. Would clocks run faster in a negative gravity field etc.What would

the equivilent of a black hole be in negative gravity ?



I suppose what i am asking is "negative " gravity a real inverse

of regular gravity in all gravitaional opperators [g,-g]=1.

Re: Negative Gravity