Zobrazeno 1 - 10
of 4 780
pro vyhledávání: '"Bouali, A."'
By considering the concept of Barrow's idea of a fractal black hole horizon in the extended-phase space thermodynamics formalism, we explore the thermodynamic processes, the phase transition, and the stability of black holes. We study the impact of q
Externí odkaz:
http://arxiv.org/abs/2411.06271
Publikováno v:
Physics of the Dark Universe, 2024
This paper presents a detailed study of the thermodynamics of charged BTZ black holes using the conformal holographic extended thermodynamics formalism and Tsallis statistics. The cornerstone of our thermodynamic framework is the re-scaling of CFT by
Externí odkaz:
http://arxiv.org/abs/2410.22198
Publikováno v:
Phys. Lett. B 859 (2024) 139113
In this paper, we observationally test the \( f(Q) \) gravity model at both background and perturbation levels using Pantheon$^+$, Hubble measurements, and Redshift Space Distortion Data. We obtain the best-fit parameters by solving numerically the m
Externí odkaz:
http://arxiv.org/abs/2410.10480
In this study, we analyse constraints on the growth index of matter perturbations, $\gamma$, within the framework of $f(Q)$ gravity, using recent cosmological observations, at the background and the perturbation levels, including Pantheon$^{+}$, Cosm
Externí odkaz:
http://arxiv.org/abs/2408.11996
Autor:
Bouali, Mohamed
We investigate the convexity property on $(0,1)$ of the function $$f_a(x)=\frac{{\cal K}{(\sqrt x)}}{a-(1/2)\log(1-x)}.$$ We show that $f_a$ is strictly convex on $(0,1)$ if and only if $a\geq a_c$ and $1/f_a$ is strictly convex on $(0,1)$ if and onl
Externí odkaz:
http://arxiv.org/abs/2407.14547
Autor:
Bouali, Mohamed
A recently published result states inequalities of the harmonic mean of the digamma function. In this work, we prove among others results that for all positive real numbers $x\neq 1$, $$-\gamma<-\gamma H(x,1/x)<\frac{\gamma^2}{\psi\big(H(x,1/x)\big)}
Externí odkaz:
http://arxiv.org/abs/2405.05271
In this paper, we examine the acceleration of the Universe's expansion in $F(R,T)$ gravity, where $R$ denotes the Ricci scalar and $T$ the trace of energy-momentum tensor. Indeed, the unknown nature of the source controlling this acceleration in gene
Externí odkaz:
http://arxiv.org/abs/2404.15537
Publikováno v:
Physics of the Dark Universe, 2024
In this paper, we examine the restricted phase space (RPS) thermodynamics for charged AdS black holes by considering the impact of quantum gravity on the event horizon area. The primary aim of this work is to elucidate the influence of quantum gravit
Externí odkaz:
http://arxiv.org/abs/2403.08991
Autor:
Bouali, Mohamed
We investigate the convexity property on $(0,1)$ of the functions $\varphi_{a,b,c}$ and $1/\varphi_{a,b,c}$, where $$\varphi_{a,b,c}(x)= \frac{c-\log(1-x)}{\,_2F_1(a,b,a+b,x)},$$ whenever $a,b\geq 0$ and $a+b\leq 1$. We Show that $\varphi_{a,b,c}$ (r
Externí odkaz:
http://arxiv.org/abs/2403.09695
This study examines five models derived from the Pacif parametrization scheme of the Hubble parameter ($H$), yielding various linear to quintic forms of the deceleration parameter (DP). Our goal is to explore the impact of these DP variations on late
Externí odkaz:
http://arxiv.org/abs/2402.10499