Big Rip Compatible with Flat Universe?

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Islam Hassan
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Is there a fundamental incompatibilty between a flat universe and the possibility of a Big Rip-type scenario of the evolution of the universe? Does a Big Rip necessarily imply a hyperbolic universe?

What relationship is there -if any- between the shape of the universe and the equation of state parameter of dark energy that theoretically determines the likeliness of a Big Rip scenario?

Wikipedia says that as of the present state of knowledge, the universe is flat within "a 0.4% margin of error". What future experiments/observations may refine/infirm this observation?


IH
 
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Islam Hassan said:
Is there a fundamental incompatibilty between a flat universe and the possibility of a Big Rip-type scenario of the evolution of the universe?
No.


Islam Hassan said:
Does a Big Rip necessarily imply a hyperbolic universe?

No.


Islam Hassan said:
What relationship is there -if any- between the shape of the universe and the equation of state parameter of dark energy that theoretically determines the likeliness of a Big Rip scenario?

There is none.
 
Thanx George...concise and to the point.IH