Lovelock Theorem & FRW Domain Wall Cosmological Model in f(G) Theory

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In summary, the conversation discusses a FRW domain wall cosmological model in f(G) theory of gravitation, which has received a comment that it violates Lovelock theorem. The question is raised about constraints for cutting massive gravitation modes in the context of gravitational wave GW170817, but it is noted that only analysis in GR has been done.
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Hatkar
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Is FRW domain wall cosmological model in f(G) theory of gravitation model violets Lovelock theorem?.
I have worked out a FRW domain wall cosmological model in f(G) theory of gravitation. I have received one comment that this model violets Lovelock theorem.
Are there any constraints to cut massive gravitation modes with higher derivative models in gravitational wave GW170817?.
 
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Hatkar said:
I have worked out a FRW domain wall cosmological model in f(G) theory of gravitation. I have received one comment that this model violets Lovelock theorem.

We cannot discuss personal theories or personal research here.

Hatkar said:
Are there any constraints to cut massive gravitation modes with higher derivative models in gravitational wave GW170817?

The only analysis of any GW detections that I'm aware of is done in the context of GR, not alternative gravity models.
 

Related to Lovelock Theorem & FRW Domain Wall Cosmological Model in f(G) Theory

1. What is the Lovelock Theorem?

The Lovelock Theorem is a mathematical theorem that states that in a four-dimensional spacetime, the only possible form of the gravitational field equations that are both second-order and satisfy the conservation laws are those that are equivalent to Einstein's field equations of general relativity.

2. How does the FRW Domain Wall Cosmological Model fit into f(G) Theory?

The FRW Domain Wall Cosmological Model is a specific cosmological model that is based on the f(G) theory of gravity, which is a modified version of general relativity. This model incorporates domain walls, which are hypothetical interfaces between different vacuum states, into the equations of f(G) theory.

3. What is f(G) Theory?

f(G) theory is a modified version of general relativity that introduces a new parameter, f(G), into the field equations. This parameter is a function of the Gauss-Bonnet invariant, which is a geometric quantity that characterizes the curvature of spacetime. f(G) theory is a popular alternative to general relativity as it can explain some phenomena that cannot be explained by general relativity, such as the accelerated expansion of the universe.

4. How does the Lovelock Theorem support the validity of f(G) Theory?

The Lovelock Theorem provides a mathematical proof that the field equations of general relativity are the only possible form of gravitational field equations in a four-dimensional spacetime that are both second-order and satisfy the conservation laws. This supports the validity of f(G) theory as it shows that the modifications made in this theory are consistent with the constraints imposed by the Lovelock Theorem.

5. What are the implications of the FRW Domain Wall Cosmological Model in f(G) Theory?

The FRW Domain Wall Cosmological Model in f(G) Theory has several implications for our understanding of the universe. It provides a possible explanation for the existence of domain walls, which could have important consequences for the evolution of the universe. Additionally, it offers a potential solution to the cosmological constant problem, which is a longstanding problem in physics related to the observed acceleration of the expansion of the universe.

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