Gravitation & Relativity

This track focuses on Gravitation & Relativity, covering analytical relativity, numerical relativity, and spacetime dynamics in strong-field regimes. Research exploring inspiral–merger–ringdown waveform modeling, black-hole perturbation theory, horizon thermodynamics, gravitational memory, and quasi-normal-mode spectroscopy is central to advancing Gravitation & Relativity. Studies evaluating modifications to general relativity, scalar-tensor models, and effective-one-body frameworks further contribute to the field. Investigations of neutron-star structure, tidal deformability, relativistic hydrodynamics, and high-density equation-of-state modeling enhance the characterization of compact objects. Contributions employing high-precision pulsar timing arrays, VLBI imaging, and gravitational-wave observations from LIGO, Virgo, and KAGRA provide empirical constraints critical to Gravitation & Relativity research. The session also welcomes work on cosmological relativity, singularity resolution, semiclassical gravity, holographic correspondences, and quantum-gravity phenomenology, connecting fundamental theory with observational tests.