output
19922026
researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions
Showing 2009 · gr-qcShow all

16 papers · 2 filters

gr-qc2009★ 118 cited

Axially symmetric solutions in f(R)-gravity

Salvatore Capozziello, Mariafelicia De Laurentis, Arturo Stabile

Axially symmetric solutions for f (R)-gravity can be derived starting from exact spherically sym- metric solutions achieved by Noether symmetries. The method takes advantage of a c…

gr-qc2009★ 4 cited

PPN limit and cosmological gravitational waves as tools to constrain f(R)-gravity

Mariafelicia De Laurentis, Salvatore Capozziello, Shin'ichi Nojiri +1

We discuss the PPN Solar-System constraints and the GW stochastic background considering some recently proposed gravity models which satisfy both cosmological and stability…

gr-qc2009★ 122 cited

Massive, massless and ghost modes of gravitational waves from higher-order gravity

Charalampos Bogdanos, Salvatore Capozziello, Mariafelicia De Laurentis +1

We linearize the field equations for higher order theories that contain scalar invariants other than the Ricci scalar. We find that besides a massless spin-2 field (the standard gr…

gr-qc2009★ 360 cited

Gravitational Lensing by Black Holes

V. Bozza

We review the theoretical aspects of gravitational lensing by black holes, and discuss the perspectives for realistic observations. We will first treat lensing by spherically symme…

gr-qc2009★ 41 cited

Metric-affine -gravity with torsion: an overview

S. Capozziello, S. Vignolo

Torsion and curvature could play a fundamental role in explaining cosmological dynamics. f(R)-gravity with torsion is an approach aimed to encompass in a comprehensive scheme all t…

gr-qc2009★ 134 cited

A bird's eye view of f(R)-gravity

S. Capozziello, M. De Laurentis, V. Faraoni

We survey the landscape of theories of gravity in their various formulations, which have been used to model the cosmic acceleration as alternatives to dark energy and dark m…

gr-qc2009★ 44 cited

Testing an exact -gravity model at Galactic and local scales

S. Capozziello, E. Piedipalumbo, C. Rubano +1

The weak field limit for a pointlike source of a -gravity model is studied. We aim to show the viability of such a model as a valid alternative to GR + dark m…

gr-qc2009★ 18 cited

On the Poincare Gauge Theory of Gravitation

S. A. Ali, C. Cafaro, S. Capozziello +1

We present a compact, self-contained review of the conventional gauge theoretical approach to gravitation based on the local Poincare group of symmetry transformations. The covaria…

gr-qc2009★ 1 cited

Relativistic orbits and Gravitational Waves from gravitomagnetic corrections

Salvatore Capozziello, Mariafelicia De Laurentis, Luca Forte +2

Corrections to the relativistic theory of orbits are discussed considering higher order approximations induced by gravitomagnetic effects. Beside the standard periastron effect of…

gr-qc2009

Computational Approach to Gravitational Waves Forms in Stellar Systems as Complex Structures through Keplerian Parameters

Ivana Bochicchio, Mariafelicia De Laurentis, Ettore Laserra

In this paper we investigate the gravitational waves emission by stellar dynamical structures as complex systems in the quadrupole approximation considering bounded and unbounded o…

gr-qc2009★ 6 cited

Stochastic Background of Relic Scalar Gravitational Waves tuned by Extended Gravity

Mariafelicia De Laurentis, Salvatore Capozziello

A stochastic background of relic gravitational waves is achieved by the so called adiabatically-amplified zero-point fluctuations process derived from early inflation. It provides…

gr-qc2009★ 11 cited

A tomographic description for classical and quantum cosmological perturbations

S. Capozziello, V. I. Man'ko, G. Marmo +1

Classical and quantum perturbations can be described in terms of marginal distribution functions in the framework of tomographic cosmology. In particular, the so called Radon trans…

gr-qc2009★ 76 cited

The Cauchy problem for metric-affine f(R)-gravity in presence of perfect-fluid matter

S. Capozziello, S. Vignolo

The Cauchy problem for metric-affine f(R)-gravity `a la Palatini and with torsion, in presence of perfect fluid matter acting as source, is discussed following the well-known Bruha…

gr-qc2009★ 22 cited

A comment on "The Cauchy problem of f(R)- gravity", Class. Quantum Grav., 24, 5667 (2007), arXiv:0709.4414

S. Capozziello, S. Vignolo

A critical comment on [N. Lanahan--Tremblay and V. Faraoni, 2007, {\it Class. Quantum Grav.}, {\bf 24}, 5667, arXiv:0709.4414] is given discussing the well-formulation of the Chauc…

gr-qc2009★ 41 cited

The Newtonian limit of metric gravity theories with quadratic Lagrangians

S. Capozziello, A. Stabile

The Newtonian limit of fourth-order gravity is worked out discussing its viability with respect to the standard results of General Relativity. We investigate the limit in the metri…

gr-qc2009★ 58 cited

A general solution in the Newtonian limit of f(R)- gravity

S. Capozziello, A. Stabile, A. Troisi

We show that any analytic -gravity model, in the metric approach, presents a weak field limit where the standard Newtonian potential is corrected by a Yukawa-like term. This…