Zobrazeno 1 - 10
of 30 123
pro vyhledávání: '"A. Spina"'
Spectroscopic analyses of young late-type stars suffer from systematic inaccuracies, typically under-estimating metallicities but over-estimating abundances of certain elements including oxygen and barium. Effects are stronger in younger and cooler s
Externí odkaz:
http://arxiv.org/abs/2411.05314
In this study we address whether the age--metallicity relation (AMR) deviates from the expected trend of metallicity increasing smoothly with age. We also show the presence (or absence) of two populations, as recently claimed using a relatively small
Externí odkaz:
http://arxiv.org/abs/2411.03067
The problem of attacks on new generation network infrastructures is becoming increasingly relevant, given the widening of the attack surface of these networks resulting from the greater number of devices that will access them in the future (sensors,
Externí odkaz:
http://arxiv.org/abs/2410.24013
Information-seeking dialogues span a wide range of questions, from simple factoid to complex queries that require exploring multiple facets and viewpoints. When performing exploratory searches in unfamiliar domains, users may lack background knowledg
Externí odkaz:
http://arxiv.org/abs/2410.21529
We investigate the massless scalar field perturbations, focusing on the quasinormal modes spectrum and the ringdown waveform of regular black hole spacetimes derived within the Asymptotic Safety program. In particular, we discuss the stability of a n
Externí odkaz:
http://arxiv.org/abs/2410.05936
Voice-based systems like Amazon Alexa, Google Assistant, and Apple Siri, along with the growing popularity of OpenAI's ChatGPT and Microsoft's Copilot, serve diverse populations, including visually impaired and low-literacy communities. This reflects
Externí odkaz:
http://arxiv.org/abs/2409.00890
Advances in generative AI, the proliferation of large multimodal models (LMMs), and democratized open access to these technologies have direct implications for the production and diffusion of misinformation. In this prequel, we address tackling misin
Externí odkaz:
http://arxiv.org/abs/2408.00292
Autor:
Negro, Luigi, Spina, Chiara
We prove sharp upper and lower estimates for the parabolic kernel of the singular elliptic operator \begin{align*} \mathcal L&=\mbox{Tr }\left(AD^2\right)+\frac{\left(v,\nabla\right)}y, \end{align*} in the half-space $\mathbb{R}^{N+1}_+=\{(x,y): x \i
Externí odkaz:
http://arxiv.org/abs/2408.00031
Autor:
Negro, Luigi, Spina, Chiara
We prove Rellich-Kondrachov type theorems and weighted Poincar\'e inequalities on the half-space $\mathbb{R}^{N+1}_+=\{z=(x,y): x \in \mathbb{R}^N, y>0\}$ endowed with the weighted Gaussian measure $\mu :=y^ce^{-a|z|^2}dz$ where $c+1>0$ and $a>0$. We
Externí odkaz:
http://arxiv.org/abs/2407.17096
Autor:
Chowdhury, Md Fahim F, Jung, Adi, La Spina, Lea, Bartasyte, Ausrine, Margueron, Samuel, Atulasimha, Jayasimha
We investigate coherent quantum control of a nitrogen vacancy (NV) center in diamond with microwave fields generated from a nanoscale magnet that is proximal to the NV center. Our results show remarkable coherent control with high contrast Rabi oscil
Externí odkaz:
http://arxiv.org/abs/2407.14018