Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Alvarenga, Marcelo"'
The structure of unimodular gravity (UG) is invariant to a subclass of diffeomorphism, the transverse diffeomorphism, due to the unimodular condition ($\sqrt{-g}=\epsilon=cte$). Consequently, there is a freedom to define how the conservation laws of
Externí odkaz:
http://arxiv.org/abs/2402.09645
Unimodular Gravity is one of the oldest geometric gravity theory alternative to General Relativity. Essentially, it is based on the Einstein-Hilbert Lagrangian with an additional constraint on the determinant of the metric. It can be explicitly shown
Externí odkaz:
http://arxiv.org/abs/2301.12464
Unimodular gravity is characterized by an extra condition with respect to General Relativity: the determinant of the metric is constant. This extra condition leads to a more restricted class of invariance by coordinate transformation. Even though, if
Externí odkaz:
http://arxiv.org/abs/2112.06663
In this work we review the issue of imposing the conservation of the energy-momentum tensor as a necessary condition to recover the equivalence between the unimodular gravity and General Relativity (GR) equipped with a cosmological constant. This pro
Externí odkaz:
http://arxiv.org/abs/2112.06644
Autor:
Vasconcelos, Mariana Pinheiro Alves, Sánchez-Arcila, Juan Camilo, Peres, Luciana, de Sousa, Paulo Sérgio Fonseca, dos Santos Alvarenga, Marcelo Augusto, Castro-Alves, Júlio, de Fatima Ferreira-da-Cruz, Maria, Maia-Herzog, Marilza, Oliveira-Ferreira, Joseli
Publikováno v:
In Journal of Infection and Public Health April 2023 16(4):603-610
Autor:
Fabris, Júlio C.1,2 (AUTHOR) julio.fabris@cosmo-ufes.org, Alvarenga, Marcelo H.1 (AUTHOR), Velten, Hermano3 (AUTHOR)
Publikováno v:
Symmetry (20738994). Jul2023, Vol. 15 Issue 7, p1392. 16p.
Autor:
Alvarenga, Marcelo, 1941
Publikováno v:
Repositório Institucional da UnicampUniversidade Estadual de CampinasUNICAMP.
Orientador: Henrique Benedito Brenelli
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-07-22T09:56:47Z (GMT). No. of bitstreams: 1 Alvarenga_Marcelo_D.pdf: 3246389 bytes,
Tese (doutorado) - Universidade Estadual de Campinas, Faculdade de Ciencias Medicas
Made available in DSpace on 2018-07-22T09:56:47Z (GMT). No. of bitstreams: 1 Alvarenga_Marcelo_D.pdf: 3246389 bytes,
Externí odkaz:
http://repositorio.unicamp.br/jspui/handle/REPOSIP/309636
Autor:
Fabris, Júlio C.1,2 (AUTHOR), Alvarenga, Marcelo H.1 (AUTHOR), Hamani-Daouda, Mahamadou3 (AUTHOR), Velten, Hermano4 (AUTHOR) hermano.velten@ufop.edu.br
Publikováno v:
European Physical Journal C -- Particles & Fields. Jun2022, Vol. 82 Issue 6, p1-30. 30p.
Autor:
Alvarenga, Marcelo Aparecido, Leite, Nildes Raimunda Pitombo, Freitas, Alessandra Demite Gonçalves de, Ruas, Roberto Lima
Publikováno v:
In REGE - Revista de Gestão January-March 2017 24(1):35-44
Autor:
APARECIDO ALVARENGA, MARCELO1 prof.marcelo.alvarenga@gmail.com, REZENDE DA COSTA, PRISCILA2 priscilarc@uni9.pro.br, LIMA RUAS, ROBERTO1 roberuas@gmail.com
Publikováno v:
Revista Alcance. Jan-Apr2022, Vol. 29 Issue 1, p105-121. 17p.