3 papers
gr-qc2026
Quark Stars in Gravity: Structure, Stability, and Observational Constraints
Takol Tangphati, Ayan Banerjee, Izzet Sakalli +2
Quark stars-hypothetical compact stars made entirely of deconfined quark matter-offer a clean testing ground for gravity beyond general relativity. We study their structure in $f(T…
gr-qc2026
Tidal Deformability of Neutron Stars in Bumblebee Gravity: Probing Lorentz Symmetry Breaking with Gravitational Waves
Ayan Banerjee, sherzod Sayfiyev, Muhtarama Radjapbaeva +3
We investigate the tidal properties of static neutron stars in the Neves--Gardim branch of bumblebee gravity, a vector--tensor theory in which a nonzero vacuum expectation value of…
math.OC2024
Comparative Analysis of Gradient-Based Optimization Techniques Using Multidimensional Surface 3D Visualizations and Initial Point Sensitivity
Saeed Asadi, Sonia Gharibzadeh, Hajar Kazemi Naeini +5
This study examines several renowned gradient-based optimization techniques and focuses on their computational efficiency and precision. In the study, the steepest descent, conjuga…