Asymptotic freedom in curvature-saturated gravity (Q2754501)
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scientific article; zbMATH DE number 1671133
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Asymptotic freedom in curvature-saturated gravity |
scientific article; zbMATH DE number 1671133 |
Statements
20 February 2002
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Friedman model
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fourth-order gravity
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asymptotic freedom
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curvature-saturated model
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Asymptotic freedom in curvature-saturated gravity (English)
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The authors study spatially flat Friedmann solutions in fourth-order gravity where the Lagrangian \(L=L(R)\) is assumed to depend only on the scalar curvature \(R\). The so-called curvature time \(a\) is taken as the time coordinate. The field equations reduce to only one second-order equation for one function \(B=B(a)\). The authors discuss several physically relevant cases where the equation of motion can be solved in closed form. They also turn attention to the asymptotic freedom of the curvature-saturated model proposed by \textit{H. Kleinert} and \textit{H.-J. Schmidt} [Gen. Relativ. Gravitation 34, 1295-1318 (2002)].NEWLINENEWLINEFor the entire collection see [Zbl 0967.00114].
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