Zobrazeno 1 - 10
of 112
pro vyhledávání: '"Farese G"'
Publikováno v:
Phys.Rev.D82:061501,2010
We show that scalar, 0-form, Galileon actions --models whose field equations contain only second derivatives-- can be generalized to arbitrary even p-forms. More generally, they need not even depend on a single form, but may involve mixed p combinati
Externí odkaz:
http://arxiv.org/abs/1007.5278
Publikováno v:
Phys.Rev.D80:064015,2009
We extend to curved backgrounds all flat-space scalar field models that obey purely second-order equations, while maintaining their second-order dependence on both field and metric. This extension simultaneously restores to second order the, original
Externí odkaz:
http://arxiv.org/abs/0906.1967
Publikováno v:
Phys.Rev.D79:084003,2009
We consider the recently introduced "galileon" field in a dynamical spacetime. When the galileon is assumed to be minimally coupled to the metric, we underline that both field equations of the galileon and the metric involve up to third-order derivat
Externí odkaz:
http://arxiv.org/abs/0901.1314
Autor:
Esposito-Farese, G.
Publikováno v:
Proceedings World Scientific (2002) p. 1749
This talk is based on my work in collaboration with B. Boisseau, D. Polarski, and A.A. Starobinsky. The most natural and best-motivated alternatives to general relativity are the so-called "scalar-tensor" theories, in which the gravitational interact
Externí odkaz:
http://arxiv.org/abs/gr-qc/0011115
Autor:
Esposito-Farese, G.
Publikováno v:
Proceedings World Scientific (2002) p. 2041
This talk reviews the constraints imposed by binary-pulsar data on gravity theories, and notably on "scalar-tensor" theories which are the most natural alternatives to general relativity. Because neutron stars have a strong gravitational binding ener
Externí odkaz:
http://arxiv.org/abs/gr-qc/0011114
Autor:
Esposito-Farese, G., Polarski, D.
Publikováno v:
Phys.Rev. D63 (2001) 063504
We consider scalar-tensor theories of gravity in an accelerating universe. The equations for the background evolution and the perturbations are given in full generality for any parametrization of the Lagrangian, and we stress that apparent singularit
Externí odkaz:
http://arxiv.org/abs/gr-qc/0009034
Publikováno v:
Phys.Rev.Lett. 85 (2000) 2236
The present acceleration of the Universe strongly indicated by recent observational data can be modeled in the scope of a scalar-tensor theory of gravity. We show that it is possible to determine the structure of this theory (the scalar field potenti
Externí odkaz:
http://arxiv.org/abs/gr-qc/0001066
Akademický článek
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Autor:
SABATINI, GAETANO, Zaganella M, Marzano A, Rasi G, Farese G, Conte L, Dandolo F, Misiani S, Barucci P, Paganetto L.
Il saggio approfondisce la dimensione storica dell'analisi economica nel pensiero di Giuseppe Di Nardi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3668::5d3da56806645b1144f03a6016afe901
https://hdl.handle.net/11590/285002
https://hdl.handle.net/11590/285002
Akademický článek
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