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Weak gravitational lensing by compact objects in fourth order gravity
Zsolt Horváth, László Á. Gergely, David Hobill +2
We discuss weak lensing characteristics in the gravitational field of a compact object in the low-energy approximation of fourth order f(R) gravity theory. The particular solution…
Hamiltonian dynamics and Noether symmetries in Extended Gravity Cosmology
Salvatore Capozziello, Mariafelicia De Laurentis, Sergei D. Odintsov
We discuss the Hamiltonian dynamics for cosmologies coming from Extended Theories of Gravity. In particular, minisuperspace models are taken into account searching for Noether symm…
Gravitationally Generated Interactions
Salvatore Capozziello, Mariafelicia De Laurentis, Luca Fabbri +1
Starting from a 5D-Riemannian manifold, we show that a reduction mechanism to 4D-spacetimes reproduces Extended Theories of Gravity (ETGs) that are direct generalizations of Einste…
Running coupling in electroweak interactions of leptons from f(R)-gravity with torsion
Salvatore Capozziello, Mariafelicia De Laurentis, Luca Fabbri +1
The f(R)-gravitational theory with torsion is considered for one family of leptons; it is found that the torsion tensor gives rise to interactions having the structure of the weak…
Black holes and stellar structures in f(R)-gravity
M. De Laurentis, S. Capozziello
We review black hole solutions and self-gravitating structures in f(R)-gravity.
Measuring cosmological distances by coalescing binaries
Ivan De Martino, Salvatore Capozziello, Mariafelicia De Laurentis +1
Gravitational waves detected from well-localized inspiraling binaries would allow us to determine, directly and independently, binary luminosity and redshift. In this case, such sy…