Zobrazeno 1 - 10
of 2 269
pro vyhledávání: '"P. Grigoris"'
Autor:
Rather, Ishfaq Ahmad, Marquez, Kauan D., Backes, Betânia C., Panotopoulos, Grigoris, Lopes, Ilídio
This study investigates the radial oscillations of hybrid neutron stars, characterized by a composition of hadronic external layers and a quark matter core. Utilizing a density-dependent relativistic mean-field model that incorporates hyperons and ba
Externí odkaz:
http://arxiv.org/abs/2412.04007
We investigate the impact of hyperons and phase transition to quark matter on the structural properties of neutron stars within the four-dimensional Einstein-Gauss-Bonnet gravity (EGB). We employ the density-dependent relativistic mean-field model (D
Externí odkaz:
http://arxiv.org/abs/2412.03348
We introduce two new static, spherically symmetric regular black hole solutions that can be obtained from non-linear electrodynamics models. For each solution, we investigate the dynamic stability with respect to arbitrary linear fluctuations of the
Externí odkaz:
http://arxiv.org/abs/2412.00550
We study procurement auctions, where an auctioneer seeks to acquire services from strategic sellers with private costs. The quality of services is measured by a submodular function known to the auctioneer. Our goal is to design computationally effici
Externí odkaz:
http://arxiv.org/abs/2411.13513
We investigate the properties of anisotropic white dwarf stars within the rainbow gravity adopting for matter content the Chandrasekhar model based on an ideal Fermi gas at zero temperature. We study in detail the effects of the anisotropic factor on
Externí odkaz:
http://arxiv.org/abs/2411.12526
Specifying all desirable properties of a language model is challenging, but certain requirements seem essential. Given samples from an unknown language, the trained model should produce valid strings not seen in training and be expressive enough to c
Externí odkaz:
http://arxiv.org/abs/2411.09642
We study a setting where agents use no-regret learning algorithms to participate in repeated auctions. \citet{kolumbus2022auctions} showed, rather surprisingly, that when bidders participate in second-price auctions using no-regret bidding algorithms
Externí odkaz:
http://arxiv.org/abs/2411.09517
We compute the quadrupolar gravitoelectric tidal Love numbers of spherical configurations made of anisotropic matter. Anisotropies are introduced within the vanishing complexity factor, while interior solutions are obtained adopting the Extended Chap
Externí odkaz:
http://arxiv.org/abs/2411.05171
Multiclass learnability is known to exhibit a properness barrier: there are learnable classes which cannot be learned by any proper learner. Binary classification faces no such barrier for learnability, but a similar one for optimal learning, which c
Externí odkaz:
http://arxiv.org/abs/2410.22749
The problem of detecting fake data inspires the following seemingly simple mathematical question. Sample a data point $X$ from the standard normal distribution in $\mathbb{R}^n$. An adversary observes $X$ and corrupts it by adding a vector $rt$, wher
Externí odkaz:
http://arxiv.org/abs/2410.18880