Zobrazeno 1 - 10
of 1 016
pro vyhledávání: '"Glass E"'
Autor:
Glass, E. N.
Publikováno v:
Can. J. Physics vol 94, 1251 - 1252 (2016)
The notion of gravitational radiation begins with electromagnetic radiation. In 1887 Heinrich Hertz, working in one room, generated and received electromagnetic radiation. Maxwell's equations describe the electromagnetic field. The quanta of electrom
Externí odkaz:
http://arxiv.org/abs/1701.08072
Autor:
Krisch, J. P., Glass, E. N.
Generalized inheritance is used with the almost-conformal Killing equation. Examples are the flat FRW, Kasner, and deSitter metrics. The volume changes in FRW while transitioning to a stiff fluid are discussed. An inheritance current is implicit in t
Externí odkaz:
http://arxiv.org/abs/1508.04614
Autor:
Krisch, J. P., Glass, E. N.
Publikováno v:
J. Math. Phys. vol 55, 102502 (2014)
A set of cylindrical solutions to Einstein's field equations for power law densities is described. The solutions have a Bessel function contribution to the metric. For matter cylinders regular on axis, the first two solutions are the constant density
Externí odkaz:
http://arxiv.org/abs/1411.2892
Autor:
Glass, E. N.
Analytic gravitational collapse and expansion solutions with anisotropic pressure are generated. Metric functions are found by requiring zero heat flow scalar. It emerges that a single function generates the anisotropic solutions. Each generating fun
Externí odkaz:
http://arxiv.org/abs/1309.7092
Autor:
Krisch, J. P., Glass, E. N.
Shear-free composite fluids are constructed from two Letelier rotated unaligned perfect fluids. The component fluid parameters necessary to construct a shear-free composite are investigated. A metric in the Stephani-Barnes solution family and a simpl
Externí odkaz:
http://arxiv.org/abs/1307.1080
Autor:
Garfinkle, David, Glass, E. N.
Methods are presented for finding Killing-Yano tensors, conformal Killing-Yano tensors, and conformal Killing vectors in spacetimes with a hypersurface orthogonal Killing vector. These methods are similar to a method developed by the authors for find
Externí odkaz:
http://arxiv.org/abs/1302.6207
Autor:
Krisch, J. P., Glass, E. N.
Publikováno v:
J. Math. Phys. vol 52, 102503 (2011)
We describe the stress energy of a fluid with two unequal stresses and heat flow in terms of two perfect fluid components. The description is in terms of the fluid velocity overlap of the components, and makes no assumptions about the equations of st
Externí odkaz:
http://arxiv.org/abs/1110.0128
Autor:
Garfinkle, David, Glass, E. N.
Publikováno v:
Class. Quantum Grav. vol 28, 215012 (2011)
Similarities between the Melvin and Bertotti-Robinson spacetimes are discussed and a uniqueness conjecture is formulated.
Externí odkaz:
http://arxiv.org/abs/1109.1535
Autor:
Krisch, J. P., Glass, E. N.
Publikováno v:
J.Math.Phys.52:052503,2011
The angular deficit factor in the Levi-Civita vacuum metric has been parametrized using a Riemann-Liouville fractional integral. This introduces a new parameter into the general relativistic cylinder description, the fractional index {\alpha}. When t
Externí odkaz:
http://arxiv.org/abs/1105.2346
Autor:
Glass, E. N.
Publikováno v:
Phys.Rev.D82:044039,2010
This work discusses gravothermal catastrophe in astrophysical systems and provides an analytic collapse solution which exhibits many of the catastrophe properties. The system collapses into a trapped surface with outgoing energy radiated to a future
Externí odkaz:
http://arxiv.org/abs/1008.0448