Results 61 to 70 of about 7,610 (173)

Artificial Intelligence in Multimedia Content Generation: A Review of Audio and Video Synthesis Techniques

Journal of the Society for Information Display, Volume 34, Issue 2, Page 49-67, February 2026.
Modern AI systems can now synthesize coherent multimedia experiences, generating video and audio directly from text prompts. These unified frameworks represent a rapid shift toward controllable and synchronized content creation. From early neural architectures to transformer and diffusion paradigms, this paper contextualizes the ongoing evolution of ...
Charles Ding, Rohan Bhowmik
wiley   +1 more source

Some properties of the "String gas" with the equation of state $p = -\rho/3$

, 2011
We show that the string gas - a perfect fluid with the equation of state $p = -\frac13 \rho$ possesses rather interesing properties. In Friedmann universes its presence can can change the observable topology of the space; in the spherically symmetric ...
ALEXANDER YU. KAMENSHCHIK, Belinsky V. A., ISAAK M. KHALATNIKOV, Sahni V.   +3 more
core   +1 more source

Hybrid Deference, Hybrid Chance

Philosophy and Phenomenological Research, Volume 112, Issue 1, Page 214-233, January 2026.
ABSTRACT If you learn about one kind of chance and nothing else, then you should defer to those chances. But what if you learn about more than one kind of chance? In such “hybrid” cases, familiar chance‐credence principles, like the Principal Principle, go silent when they should intuitively speak.
Alexander Meehan
wiley   +1 more source

Homogeneous Gödel-type solutions in hybrid metric-Palatini gravity

European Physical Journal C: Particles and Fields, 2018
The hybrid metric-Palatini $$f({\mathscr {R}})$$ f(R) gravity is a recently devised approach to modified gravity in which it is added to the metric Ricci scalar R, in the Einstein–Hilbert Lagrangian, a function $$f({\mathscr {R}})$$ f(R) of Palatini ...
J. Santos, M. J. Rebouças, A. F. F. Teixeira   +2 more
doaj   +1 more source

Novel Theorems on Spacetime Admitting Pseudo‐W2 Curvature Tensor

Journal of Mathematics, Volume 2026, Issue 1, 2026.
This paper investigates spacetime manifolds admitting a pseudo‐W2 curvature tensor. We show that a pseudo‐W2 flat spacetime is an Einstein manifold and therefore has constant curvature. Moreover, when the manifold satisfies the Einstein field equations (EFE), with a cosmological constant, the associated energy–momentum tensor is covariantly constant ...
B. B. Chaturvedi, Prabhawati Bhagat, Mohammad Nazrul Islam Khan, Ljubisa Kocinac   +3 more
wiley   +1 more source

Riemann solitons on perfect fluid spacetimes

Filomat
In this article, we characterize Riemann solitons on perfect fluid spacetimes. Some relationship between perfect fluid spacetimes and Riemann solitons with certain soliton vector fields are established. We investigate Ricci-symmetric perfect fluid spacetimes whose metrics are Riemann solitons.
Avijit Sarkar, Urmila Biswas
openaire   +1 more source

One‐dimensional Carrollian fluids II: C1$C^1$ blow‐up criteria

Journal of the London Mathematical Society, Volume 112, Issue 5, November 2025.
Abstract The Carrollian fluid equations arise from the equations for relativistic fluids in the limit as the speed of light vanishes, and have recently experienced a surge of interest in the theoretical physics community in the context of asymptotic symmetries and flat‐space holography.
Nikolaos Athanasiou, Marios Petropoulos, Simon Schulz, Grigalius Taujanskas   +3 more
wiley   +1 more source

On existence of matter outside a static black hole

, 2006
It is expected that matter composed of a perfect fluid cannot be at rest outside of a black hole if the spacetime is asymptotically flat and static (non-rotating).
Gilbarg D., Hirotaka Yoshino, Sumio Yamada, Tetsuya Shiromizu   +3 more
core   +1 more source

Holomorphic field theories and higher algebra

Bulletin of the London Mathematical Society, Volume 57, Issue 10, Page 2903-2974, October 2025.
Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley   +1 more source

MAKING AN ACCESSIBLE CITY: A Critique of Cartographic Reason through Emphasis on Corpography

International Journal of Urban and Regional Research, Volume 49, Issue 5, Page 1109-1128, September 2025.
Abstract Inspired by Gunnar Olsson, this article critiques the use of cartographic reason in the process of creating an accessible city for people with disabilities. It also borrows Gregory's ontological conceptual pair of cartography and corpography, showing the ontological transformations that occur within this pair during the practical removal of ...
Pavel Doboš, Robert Osman
wiley   +1 more source