Zobrazeno 1 - 10
of 3 045
pro vyhledávání: '"Iosifidis A."'
The cosmology of metric-affine gravity is studied for the general, parity preserving action quadratic in curvature, torsion and non-metricity. The model contains 27 a priori independent couplings in addition to the Einstein constant. Linear and highe
Externí odkaz:
http://arxiv.org/abs/2412.15329
Autor:
Picón, Ginés Carreto, Oleksiienko, Illia, Hedegaard, Lukas, Bakhtiarnia, Arian, Iosifidis, Alexandros
Transformers are widely used for their ability to capture data relations in sequence processing, with great success for a wide range of static tasks. However, the computational and memory footprint of their main component, i.e., the Scaled Dot-produc
Externí odkaz:
http://arxiv.org/abs/2412.03214
Autor:
Kalntis, Michail, Suárez-Varela, José, Iglesias, Jesús Omaña, Bhattacharjee, Anup Kiran, Iosifidis, George, Kuipers, Fernando A., Lutu, Andra
Cellular networks rely on handovers (HOs) as a fundamental element to enable seamless connectivity for mobile users. A comprehensive analysis of HOs can be achieved through data from Mobile Network Operators (MNOs); however, the vast majority of stud
Externí odkaz:
http://arxiv.org/abs/2411.19586
In metric-affine gravity, both the gravitational and matter actions depend not just on the metric, but also on the independent affine connection. Thus matter can be modeled as a hyperfluid, characterized by both the energy-momentum and hypermomentum
Externí odkaz:
http://arxiv.org/abs/2411.19127
Autor:
Iosifidis, Damianos
We extend the usual vacuum Metric-Affine $f(R)$ Gravity by supplementing it with all parity even quadratic invariants in torsion and non-metricity. As we show explicitly this supplementation drastically changes the status of the Theory which now prop
Externí odkaz:
http://arxiv.org/abs/2409.11771
Countless terms of service (ToS) are being signed everyday by users all over the world while interacting with all kinds of apps and websites. More often than not, these online contracts spanning double-digit pages are signed blindly by users who simp
Externí odkaz:
http://arxiv.org/abs/2409.00077
Motivated by cosmological applications for interacting matters, an extension of the action functional for relativistic fluids is proposed to incorporate the physics of non-adiabatic processes and chemical reactions. The former are characterised by en
Externí odkaz:
http://arxiv.org/abs/2406.01412
The classification of conformal Killing vector fields for FLRW space-time from Riemannian point of view was done by Maartens-Maharaj in \cite{Maartens1986}. In this paper, we introduce conformal Killing vector fields from a new point of view for the
Externí odkaz:
http://arxiv.org/abs/2405.17165
We study the cosmology of the complete quadratic (in torsion and nonmetricity) metric-affine gravity. Namely, we add to the scalar-curvature gravitational Lagrangian, the 17 independent quadratic (parity-even and parity-odd) torsion and nonmetricity
Externí odkaz:
http://arxiv.org/abs/2404.19498
Dynamic Facial Expression Recognition (DFER) has received significant interest in the recent years dictated by its pivotal role in enabling empathic and human-compatible technologies. Achieving robustness towards in-the-wild data in DFER is particula
Externí odkaz:
http://arxiv.org/abs/2404.09010