Zobrazeno 1 - 10
of 1 431
pro vyhledávání: '"Ferraris M"'
Autor:
Fatibene, L., Orizzonte, A., Albano, A., Coriasco, S., Ferraris, M., Garruto, S., Morandi, N.
Publikováno v:
International Journal of Geometric Methods in Modern Physics (2024)
We review Holst formalism and we discuss dynamical equivalence with standard GR (in dimension 4). Holst formalism is written for a spin coframe field $e^I_\mu$ and a $Spin(3,1)$-connection $\omega^{IJ}_\mu$ on spacetime $M$ and it depends on the Hols
Externí odkaz:
http://arxiv.org/abs/2401.07307
Publikováno v:
International Journal of Geometric Methods in Modern Physics (2024)
A covariant, global, variational framework for perturbations in field theories is presented. Perturbations are obtained as vertical vector fields on the configuration bundle and they drag, exactly, solution into solutions. The flow of a perturbation
Externí odkaz:
http://arxiv.org/abs/2310.12907
We extend to three dimensions the proposal of a completely relativistic positioning system (rPS). The system does not rely on approximations, in fact, it works at a few Schwarzschild radii from a black hole, and it does not rely on Newtonian physics
Externí odkaz:
http://arxiv.org/abs/2309.00865
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Eur. Phys. J. Plus 134(5) (2019)
In a Palatini $f(\mathcal{R})$-model, we define chonodynamical effects due to the choice of atomic clocks as standard reference clocks and we develop a formalism able to quantitatively separate them from the usual effective dark sources one has in ex
Externí odkaz:
http://arxiv.org/abs/1810.10754
Autor:
Smeacetto, F., Zanchi, E., Meena Narayana Menon, D., Janner, D., Lamnini, S., Salvo, M., De La Pierre, S., Javed, H., Ferraris, M.
Publikováno v:
In Ceramics International 15 November 2022 48(22):32837-32843
After reviewing the hole argument and its relations with initial value problem and general covariance, we shall discuss how much freedom one has to define the physical state of a system in a generally covariant (or gauge covariant) field theory. We s
Externí odkaz:
http://arxiv.org/abs/1605.03888
Publikováno v:
In Surface & Coatings Technology 15 March 2021 409
Autor:
Ferraris, M., De la Pierre, S. *, Sabato, A.G., Smeacetto, F., Javed, H., Walter, C., Malzbender, J.
Publikováno v:
In Journal of the European Ceramic Society September 2020 40(12):4067-4075
We shall present here a general apt technique to induce connections along bundle reductions which is different from the standard restriction. This clarifies and generalizes the standard procedure to define Barbero-Immirzi (BI) connection, though on s
Externí odkaz:
http://arxiv.org/abs/1011.2041