Results 291 to 300 of about 63,762 (335)

Arrow of Time in Quantum Mechanics and Set Theory. [PDF]

Entropy (Basel)
Król J.
europepmc   +1 more source

Ficarra-Leo V2 Theorem: Spatio-Temporal Localization of Gravitational Singularity Events via X×Y×Z×T=0

Antonino Ficarra
openalex   +1 more source

Biophysical Fluid Dynamics in a Petri Dish

Fortune GT, Lauga E, Goldstein RE.
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Arnold’s singularity theory and gravitational lensing

Journal of Mathematical Physics, 1993
Caustics in gravitational lensing are formulated from a symplectic geometric viewpoint. Arnold’s singularity theory is then used to give a rigorous local classification of generic gravitational lensing caustics and their evolutions. A local classification is also presented of generic image surfaces, time-delay image surfaces, big caustics, and ...
openaire   +3 more sources

Gravitation Without Singularity

Chinese Physics Letters, 2000
The coupled Einstein-scalar-vector field equations are found, and their static spherically symmetric solutions are derived under the consideration of self-gravitational interaction of scalar field and proved to be singularity-free and of limited energy.
openaire   +1 more source

Singularities in gravitational theory

Russian Physics Journal, 1992
It is shown that in the absolute parallelism theory a unique choice of field equations can be made by requiring that the solutions extend beyond possible singularities, while for the equations of the general theory of relativity and R2-gravitation this condition is not satisfied.
openaire   +1 more source

Foliation analysis of gravitation singularities

Physics Letters A, 1982
Abstract Gravitation singularities are examined as singularities of space-time foliations which represent critical points of real functions on a space-time.
D. Ivanenko, G. Sardanashvily
openaire   +1 more source

Singularities in Weyl gravitational fields

International Journal of Theoretical Physics, 1974
The peculiarities of the scalarS ≡RijklRijkl are exhibited for two axially-symmetric static (Weyl) gravitational fields. By examiningS along curved families of trajectories to the Weyl singularities, examples are found which contradict previous claims by Gautreau and Anderson regarding ‘directional singularities’.
F. I. Cooperstock, G. J. Junevicus
openaire   +1 more source

Precursory singularities in spherical gravitational collapse

Physical Review Letters, 1992
Summary: General conditions are developed for the formation of naked precursory (``shell-focusing'') singularities in spherical gravitational collapse. These singularities owe their nakedness to the fact that the gravitational potential fails to be single valued prior to the onset of a true gravitational singularity.
openaire   +2 more sources

Marathe’s generalized gravitational fields and singularities

Il Nuovo Cimento B, 1983
The field equation proposed by Penney and Marathe, the interesting mathematical properties of which have been studied by Marathe, is discussed from an original physical point of view. In particular, this equation is shown to admit solutions which are qualitatively different from analogous solutions of the Einstein equation since they have no ...
openaire   +1 more source