M. Shamir

collaborators

2 papers

gr-qc2026

C-infinity Compact-Support Wormholes with Exact Schwarzschild Exterior in Trace-Coupled Gravity

Mushtaq Ahmad, M. Farasat Shamir, Ahdab K. Althukair

We study static, spherically symmetric traversable wormholes in trace-coupled gravity with action density f(R,T) = R + lambda T^2. The spacetime is built from C-infinity deformatio…

gr-qc2026

Odd-parity perturbations of trace-quadratic $f (R, T)$ black holes with anisotropic matter: admissible branches, axial ringdown, and a coupled-PINN benchmark

Mushtaq Ahmad, M. Farasat Shamir, Adnan Malik +1

We study odd-parity gravitational perturbations of static black holes in trace-quadratic $f (R, T) = R + α T^{2}$ gravity supported by an anisotropic effective fluid with constant closure p…

C-infinity Compact-Support Wormholes with Exact Schwarzschild Exterior in Trace-Coupled Gravity

Odd-parity perturbations of trace-quadratic f(R,T) black holes with anisotropic matter: admissible branches, axial ringdown, and a coupled-PINN benchmark

Odd-parity perturbations of trace-quadratic $f (R, T)$ black holes with anisotropic matter: admissible branches, axial ringdown, and a coupled-PINN benchmark