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pro vyhledávání: '"J. G. Cardoso"'
Autor:
J. G. Cardoso
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 3, Pp 1-12 (2023)
Abstract A view is taken up whereby the non-singular Trautman–Kopczyński big-bang creation of the Universe produced a highly torsional hot state at early stages of the cosmic evolution which particularly brought about the formation of a dark matte
Externí odkaz:
https://doaj.org/article/cd8fdcd2dfdc4abc96264700d18567e4
Autor:
A. C. Ruiz-Fernández, J. A. Sanchez-Cabeza, L. H. Pérez-Bernal, M. Blaauw, J. G. Cardoso-Mohedano, M. A. Aquino-López, S. Giralt
Publikováno v:
Journal of Paleolimnology. 69:191-212
Autor:
A. C. Ruiz-Fernández, J. A. Sanchez-Cabeza, M. Blaauw, L. H. Pérez-Bernal, J. G. Cardoso-Mohedano, M. A. Aquino-López, E. Keaveney, S. Giralt
Publikováno v:
Journal of Paleolimnology. 68:395-413
Lakes are effective sentinels of global change owing to their sensitivity to land-use changes and climate variability in their catchment. Santa María del Oro Lake (SAMO, NW Mexico) is of interest both for global change studies and as a natural resou
Publikováno v:
Biogeosciences, Vol 9, Iss 11, Pp 4233-4245 (2012)
Mid-latitude spring blooms of phytoplankton show considerable year-to-year variability in timing, spatial extent and intensity. It is still unclear to what degree the bloom variability is connected to the magnitude of the vertical flux of organic mat
Externí odkaz:
https://doaj.org/article/4dec1fe71d0845698a0e7cffa4d2ab15
Publikováno v:
Brazilian Journal of Physics. 49:583-586
In this work, we explore a one-dimensional universe, a toy model based on the relativistic particle theory, seen as a one-dimensional field theory coupled to gravity. The gravitational field is represented by an einbein. Working in a cosmological con
Publikováno v:
Biogeosciences
Digital.CSIC. Repositorio Institucional del CSIC
instname
Biogeosciences, Vol 9, Iss 11, Pp 4233-4245 (2012)
Digital.CSIC. Repositorio Institucional del CSIC
instname
Biogeosciences, Vol 9, Iss 11, Pp 4233-4245 (2012)
13 páginas, 10 figuras, 1 tabla.
Mid-latitude spring blooms of phytoplankton show considerable year-to-year variability in timing, spatial extent and intensity. It is still unclear to what degree the bloom variability is connected to the magnit
Mid-latitude spring blooms of phytoplankton show considerable year-to-year variability in timing, spatial extent and intensity. It is still unclear to what degree the bloom variability is connected to the magnit
Autor:
J. G. Cardoso
Publikováno v:
Advances in Applied Clifford Algebras. 22:955-983
The classical two-component spinor formalisms for general relativity as built up by Infeld and van der Waerden afford an elegant approach to spacetime geometry. Deeply involved in the inner structure of these frameworks is the beautiful theory of spi
Autor:
J. G. Cardoso
Publikováno v:
International Journal of Theoretical Physics. 51:2559-2563
The integrability condition that must be formally fulfilled by any Infeld-Van der Waerden spin-affine connexion is derived explicitly. Some geometric properties of the action of torsionless covariant-derivative commutators on arbitrary spin tensors a
Autor:
J. G. Cardoso, André Martorano Kuerten
Publikováno v:
International Journal of Theoretical Physics. 50:3007-3014
One of the formalisms of Infeld and van der Waerden for general relativity suggests defining geometric sources for electromagnetic fields that are inextricably involved in underlying spin curvatures. It is shown explicitly that such fields must bear
Transformation Laws for Decomposable World-Spin Affinities in a Class of Conformally Flat Spacetimes
Autor:
J. G. Cardoso
Publikováno v:
International Journal of Theoretical Physics. 49:1274-1287
A class of conformally flat spacetimes that admit certain decomposable world-spin affine patterns is considered. New coordinate-derivative relations are particularly utilized to demonstrate that the procedures involved in a well-known spinor translat