Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Stefano Vignolo"'
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115314-115314-7 (2021)
We consider the Dirac equation written in polar form, without any external potential but equipped with a non-zero tensorial connection, and we find a new type of solution that is localized around the origin with a decreasing exponential behavior in t
Externí odkaz:
https://doaj.org/article/f70ba7f37de94ab7a6b5302343456269
Publikováno v:
Journal of Marine Science and Engineering, Vol 10, Iss 4, p 505 (2022)
The importance of mathematical and numerical simulation in marine engineering is growing together with the complexity of the designed systems. In general, simulation a makes it possible to improve the engineering design, reducing working time and cos
Externí odkaz:
https://doaj.org/article/4bd222e297cc477ebeea49a9e2f91a62
Publikováno v:
Journal of Marine Science and Engineering, Vol 7, Iss 6, p 196 (2019)
Autonomous ships represent one of the new frontiers of technological innovation in marine engineering, which demand the development of innovative control systems to guarantee efficient and safe navigation of vessels. A convenient control system shoul
Externí odkaz:
https://doaj.org/article/7f3f7ff4548545e1973abbcfb50ba057
Publikováno v:
Physical Review D. 105
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd3051db0d53d3d2d59f305657250b9f
https://doi.org/10.1103/physrevd.105.084061
https://doi.org/10.1103/physrevd.105.084061
Publikováno v:
Classical and Quantum Gravity. 39:235014
Making use of the $1 + 3$ covariant formalism, we show explicitly the effect that nonmetricity has on the dynamics of the universe. Then, using the Dynamical System Approach, we analyze the evolution of Bianchi type-I cosmologies within the framework
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::014ba09c1477fdf393fcea4302ba5aa0
https://doi.org/10.1088/1361-6382/ac9efd
https://doi.org/10.1088/1361-6382/ac9efd
Autor:
Roberto Cianci, Xisco Jiménez Forteza, Salvatore Capozziello, Stefano Vignolo, Pasquale Feola
Publikováno v:
Physical Review D. 101
Within the framework of f(R)=R+αR2 gravity, we study realistic models of neutron stars, using equations of state compatible with the LIGO constraints, i.e., APR4, MPA1, SLy, and WW1. By numerically solving modified Tolman-Oppenheimer-Volkoff equatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e28300c994a900f8efe2d5254282cea8
https://doi.org/10.1103/physrevd.101.044037
https://doi.org/10.1103/physrevd.101.044037
The Lounesto classification splits spinors in six classes: I, II, III are those for which at least one among scalar and pseudo-scalar bi-linear spinor quantities is non-zero, its spinors are called regular, and among them we find the usual Dirac spin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74f6cdf914e53f1e2bde9207961631db
https://hdl.handle.net/11567/996841
https://hdl.handle.net/11567/996841
Publikováno v:
Classical and Quantum Gravity. 39:015009
We present a tetrad–affine approach to f ( Q ) gravity coupled to spinor fields of spin- 1 2 . After deriving the field equations, we derive the conservation law of the spin density, showing that the latter ensures the vanishing of the antisymmetri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a121973f2d932569e4816a23edb41683
https://doi.org/10.1088/1361-6382/ac36e3
https://doi.org/10.1088/1361-6382/ac36e3
Autor:
Stefano Vignolo, Enrico Massa
Publikováno v:
Meccanica. 52:2491-2497
Within the framework of Lagrangian mechanics, the conservativeness of the hydrostatic forces acting on a floating rigid body is proved. The representation of the associated hydrostatic potential is explicitly worked out. The invariance of the resulti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3ab3a36b4dfc407e3346023c3c8025d
https://doi.org/10.1007/s11012-016-0598-5
https://doi.org/10.1007/s11012-016-0598-5
Autor:
Enrico Massa, Stefano Vignolo
The small oscillations of an arbitrary scleronomous system subject to time-independent nondissipative forces are discussed. The linearized equations of motion are solved by quadratures. As in the conservative case, the general integral is shown to co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2887926071179aa21139950d5bc39bc
http://hdl.handle.net/11567/943718
http://hdl.handle.net/11567/943718