Results 61 to 70 of about 35,096 (197)

Hyperbolic ends with particles and grafting on singular surfaces [PDF]

, 2019
We prove that any 3-dimensional hyperbolic end with particles (cone singularities along infinite curves of anglesless than \pi) admits a unique foliation by constant Gauss curvature surfaces. Using a form of duality between hyperbolic ends with particles
Chen, Q., Schlenker, J.
core   +2 more sources

Systemic Governance From Below: Story Telling to Empower Access to the Commons Through Mapping and Modelling: A Mixed Methods Approach

Systems Research and Behavioral Science, EarlyView.
ABSTRACT Access to forests, farming land and the Citarum river is limited in Tarumajaya; furthermore, many do not own their own housing and are dependent on the public and private landowners in the area. The region of Tarumajaya faces significant challenges in access to crucial resources such as forests, farming land and the Citarum river, leading to a
Rudolf Wirawan, Janet Judy McIntyre‐Mills, R. Riswanda R. Riswanda, Ida Widianingsih, Indra Gunawan   +4 more
wiley   +1 more source

Do black holes create polyamory?

Journal of High Energy Physics, 2018
Of course not, but if one believes that information cannot be destroyed in a theory of quantum gravity, then we run into apparent contradictions with quantum theory when we consider evaporating black holes.
Andrzej Grudka, Michael J. W. Hall, Michał Horodecki, Ryszard Horodecki, Jonathan Oppenheim, John A. Smolin   +5 more
doaj   +1 more source

UV/IR mixing and the Goldstone theorem in noncommutative field theory [PDF]

, 2002
Noncommutative IR singularities and UV/IR mixing in relation with the Goldstone theorem for complex scalar field theory are investigated. The classical model has two coupling constants, $\lambda_1$ and $\lambda_2$, associated to the two noncommutative ...
Alvarez-Gaumé, Andreev, Aref'eva, Aref'eva, Armoni, Armoni, Bassetto, Bilal, Campbell, Campbell, Chepelev, Chu, Douglas, F.Ruiz Ruiz, Girotti, Girotti, Gomis, Gomis, Gomis, Gomis, Griguolo, Hayakawa, Kiem, Krajewski, Landsteiner, Liao, Liao, Liu, Martı́n, Martı́n, Martı́n, Matusis, Minwalla, Petriello, Ruiz Ruiz, Sarkar, Sheikh-Jabbari, Szabo   +37 more
core   +4 more sources

Generic naked singularities in Vaidya spacetimes

Classical and Quantum Gravity, 2022
Abstract We investigate the occurrence of naked singularities, local and global, in the incoming Vaidya spacetimes with zero initial mass. While it is well-known that these spacetimes admit locally and globally naked singularities, we demonstrate that globally naked singularities are significantly more common than is stressed in the ...
openaire   +2 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Taming singularities and chaos in conformal gravity

European Physical Journal C: Particles and Fields
We hereby address the cosmological singularity problem in a general gravitational theory invariant under Weyl conformal transformations. In particular, we focus on the Bianchi IX spacetime and we show that both the initial (big bang) and final (big ...
Jiale Gu, Leonardo Modesto, Cosimo Bambi
doaj   +1 more source

Perturbative spacetimes from Yang-Mills theory

Journal of High Energy Physics, 2017
The double copy relates scattering amplitudes in gauge and gravity theories. In this paper, we expand the scope of the double copy to construct spacetime metrics through a systematic perturbative expansion.
Andrés Luna, Ricardo Monteiro, Isobel Nicholson, Alexander Ochirov, Donal O’Connell, Niclas Westerberg, Chris D. White   +6 more
doaj   +1 more source

Fuchsian methods and spacetime singularities

, 2003
Fuchsian methods and their applications to the study of the structure of spacetime singularities are surveyed. The existence question for spacetimes with compact Cauchy horizons is discussed. After some basic facts concerning Fuchsian equations have been
Alan D Rendall, Anguige K, Anguige K, Belinskii V A, Belinskii V A, Berger B K, Berger B K, Berger B K, Chru?ciel P T, Eardley D, Grubi?i? B, Isenberg J, Isenberg J, Isenberg J, Kichenassamy S, Moncrief V, Moncrief V, Müller V, Narita M, Newman R P A C, Noundjeu P Noutchegueme N Rendall A D, Rein G, Rendall A D, Rendall A D, Rendall A D, Rendall A D, Rendall A D, Rendall A D, Ringström H, Ringström H, Ringström H, Starobinsky A A, Ståhl F, Tod K P   +33 more
core   +1 more source

Towards a theory of presence

Noûs, EarlyView.
Abstract The present paper presents a new (formal) theory of presence according to which, roughly, to be present at a place is to have a delegate located at that place. One crucial feature of the theory is that something can be present at a place without thereby being located there.
Claudio Calosi
wiley   +1 more source