Results 51 to 60 of about 108,791 (169)
Fluid Control with Localized Spacetime Windows
Computer Graphics Forum, EarlyView.Abstract We present a physics‐based fluid control method utilizing localized spacetime windows, extending force‐based fluid control to substantially larger simulation scales. In many practical editing scenarios, user‐specified objectives affect only a small region of an otherwise satisfactory simulation, resulting in optimal control force distributions
Y. Chen, D. I. W. Levin, T. R. Langlois
wiley +1 more source
Cosmological singularities in Bakry–Émery spacetimes
Journal of Geometry and Physics, 2014 15 pages; The wording of Theorem 1.5 is slightly clarified over the wording in the published version, with no change in the ...
Galloway, Gregory J., Woolgar, Eric
openaire +2 more sources
Supersymmetric traversable wormholes
Journal of High Energy Physics, 2020 We study traversable wormhole solutions in pure gauged N = 2 supergravity with and without electromagnetic fields, which are locally isometric under SO(2, 1) × SO(1, 1). The model allows for 1/2-BPS wormhole solutions whose corresponding globally defined
Andrés Anabalón +2 more
doaj +1 more source
Geodesically complete black holes in Lorentz-violating gravity
Journal of High Energy Physics, 2022 We present a systematic study of the geometric structure of non-singular spacetimes describing black holes in Lorentz-violating gravity. We start with a review of the definition of trapping horizons, and the associated notions of trapped and marginally ...
Raúl Carballo-Rubio +3 more
doaj +1 more source
Advances in 4D Representation: Geometry, Motion, and Interaction
Computer Graphics Forum, EarlyView.We survey 4D representation through three key pillars — geometry, motion, and interaction — offering a selective, representation‐centric perspective to guide researchers in choosing and customizing the right 4D representation for their tasks. Abstract We present a survey on 4D generation and reconstruction, a fast‐evolving subfield of computer graphics
M. Zhao +7 more
wiley +1 more source
Ambient cosmology and spacetime singularities
, 2015 We present a new approach to the issues of spacetime singularities and cosmic censorship in general relativity. This is based on the idea that standard 4-dimensional spacetime is the conformal infinity of an ambient metric for the 5-dimensional Einstein ...
Cotsakis, Spiros, Antoniadis, Ignatios
core +1 more source
D-dimensional charged Anti-de-Sitter black holes in f (T) gravity
Journal of High Energy Physics, 2017 We present a D-dimensional charged Anti-de-Sitter black hole solutions in f (T) gravity, where f (T) = T + βT 2 and D ≥ 4. These solutions are characterized by flat or cylindrical horizons.
A.M. Awad, S. Capozziello, G.G.L. Nashed
doaj +1 more source
Speculative Unity in Hegel's Restrictive Identity Claim
European Journal of Philosophy, EarlyView.Abstract Hegel identifies thought with the ‘in itself’ of things. It is common to read the statement as an unrestricted claim regarding Hegel's metaphysical view of reality. I argue it should be read as the expression of what speculative truth achieves.
Ana Vieyra
wiley +1 more source
Take a Ride on a Time Machine [PDF]
, 2003 We discuss the possibility to build and operate a time machine, a device that produces closed timelike curves (CTCs). We specify the spacetime structure needed to implement a time machine and assess attempted no-go results against time machines in ...
Wuthrich, Christian +2 more
core
Taming singularities and chaos in conformal gravity
European Physical Journal C: Particles and FieldsWe 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