Geodesic
Dynamics of the Friedmann universe with boundary terms added to the action
Teoretičeskaâ i matematičeskaâ fizika, Tome 206 (2021) no. 2, pp. 269-276 Cet article a éte moissonné depuis la source Math-Net.Ru

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We consider the dynamics of the universe following from the variational principle with boundary terms added to the action. We calculate a scalar function that effectively accounts for the contribution of these boundary terms to the density and pressure of the medium filling the universe. An interesting result of the proposed approach is that a superfast expansion stage arises automatically (without additional conditions). We show the connection between the description of inflationary expansion based on the scalar field and our model.
Keywords: variational principle, cosmological constant, inflationary expansion, scalar field. 
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     author = {V. I. Kochkin},
     title = {Dynamics of {the~Friedmann} universe with boundary terms added to the~action},
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}
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V. I. Kochkin. Dynamics of the Friedmann universe with boundary terms added to the action. Teoretičeskaâ i matematičeskaâ fizika, Tome 206 (2021) no. 2, pp. 269-276. http://geodesic.mathdoc.fr/item/TMF_2021_206_2_a8/

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