Results 91 to 100 of about 6,497,246 (364)

Is general relativity `essentially understood' ?

, 2005
The content of Einstein's theory of gravitation is encoded in the properties of the solutions to his field equations. There has been obtained a wealth of information about these solutions in the ninety years the theory has been around.
Alcubierre, Allen, Anderson, Anderson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Andersson, Bartnik, Bartnik, Bartnik, Baumgarte, Beig, Beig, Belinskii, Belinskii, Berger, Berger, Berger, Bizoń, Bizoń, Bondi, Brainerd, Bray, Bray, Brodbeck, Carter, Chae, Choptuik, Choquet-Bruhat, Choquet-Bruhat, Choquet-Bruhat, Christodoulou, Christodoulou, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Chruściel, Clarke, Corvino, Corvino, Cutler, Dafermos, Dafermos, Dafermos, Dain, Dain, Dain, Dain, Dain, Einstein, Einstein, Einstein, Fischer, Fourès-Bruhat, Frauendiener, Frauendiener, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Friedrich, Frittelli, Frolov, Garfinkle, Gundlach, Gundlach, Gundlach, Gundlach, Hawking, Hawking, Hollands, Hughes, Huisken, Husa, Hübner, Isenberg, Israel, Israel, Klainerman, Klainerman, Klainerman, Kramer, Lee, Lehner, Lifshitz, Lindblad, Lindblad, Maxwell, Maxwell, Misner, Moncrief, Moncrief, Ori, Pais, Penrose, Penrose, Penrose, Penrose, Penrose, Poisson, Pound, Pretorius, Price, Rees, Rendall, Rendall, Rendall, Rendall, Rendall, Rendall, Reula, Ringström, Ringström, Ringström, Ringström, Sarbach, Schoen, Schoen, Smoller, Stellmacher, Szabados, Tataru, Thorne, Valiente Kroon, Valiente Kroon, Wainwright, Wald, Weisberg, Witten, Yoneda   +146 more
core   +1 more source

Exploring lipid diversity and minimalism to define membrane requirements for synthetic cells

FEBS Letters, EarlyView.
Designing the lipid membrane of synthetic cells is a complex task, in which its various roles (among them solute transport, membrane protein support, and self‐replication) should all be integrated. In this review, we report the latest top‐down and bottom‐up advances and discuss compatibility and complexity issues of current engineering approaches ...
Sergiy Gan, Victoria Scarpelli, Marten Exterkate   +2 more
wiley   +1 more source

Mathematical general relativity [PDF]

General Relativity and Gravitation, 2019
We present a number of open problems within general relativity. After a brief introduction to some technical mathematical issues and the famous singularity theorems, we discuss the cosmic censorship hypothesis and the Penrose inequality, the uniqueness of black hole solutions and the stability of Kerr spacetime and the final state conjecture, critical ...
openaire   +4 more sources

Isotropic stars in general relativity

, 2013
We present a general solution of the Einstein gravitational field equations for the static spherically symmetric gravitational interior spacetime of an isotropic fluid sphere.
Harko, T., Mak, M. K.
core   +1 more source

A working model for cytoplasmic assembly of H/ACA snoRNPs

FEBS Letters, EarlyView.
Dyskerin is the component of nuclear H/ACA ribonucleoproteins (RNPs) endowed with pseudouridine synthase catalytic activity. Two isoforms of human dyskerin have been characterized: the abundant Iso1, mainly nuclear, and the shorter Iso3, mainly cytoplasmic but occasionally imported into nuclei.
Alberto Angrisani, Maria Furia
wiley   +1 more source

A Novel Logarithmic Approach to General Relativistic Hydrodynamics in Dynamical Spacetimes

Universe
We introduce a novel logarithmic approach within the Baumgarte–Shapiro–Shibata–Nakamura (BSSN) formalism for self-consistently solving the equations of general relativistic hydrodynamics (GRHD) in evolving curved spacetimes. This method employs a “3 + 1”
Mario Imbrogno, Rita Megale, Luca Del Zanna, Sergio Servidio   +3 more
doaj   +1 more source

Mathematical challenges of General Relativity [PDF]

Rendiconti di Matematica e delle Sue Applicazioni, 2007
We give an overview of some of the main open problems in General Relativity as well as some new results concerning the bounded L2 curvature conjecture.
S. Klainerman
doaj  

On Conformally Coupled General Relativity

EPJ Web of Conferences, 2018
A gravity model based on the conformal symmetry is presented. To specify the structure of the general coordinate transformations the Ogievetsky theorem is applied. The nonlinear symmetry realization approach is used.
Arbuzov Andrej, Latosh Boris
doaj   +1 more source

General relativity: An erfc metric

Results in Physics, 2018
This paper proposes an erfc potential to incorporate in a symmetric metric. One key feature of this model is that it relies on the existence of an intrinsic physical constant σ, a star-specific proper length that scales all its surroundings.
Réjean Plamondon
doaj   +1 more source

Decoupling gravitational sources in general relativity: from perfect to anisotropic fluids [PDF]

, 2017
We show the first simple, systematic and direct approach to decoupling gravitational sources in general relativity. As a direct application, a robust and simple way to generate anisotropic solutions for self-gravitating systems from perfect fluid ...
J. Ovalle
semanticscholar   +1 more source