General Relativity and Quantum Cosmology
Constructs traversable zero-tidal-force wormhole solutions in Einstein-aether theory for three coupling classes and three shape functions, identifying parameter regions where NEC/WEC hold and claiming tighter bounds on aether couplings.
Sequential Caputo fractional time operators in linearized gravity and the quadrupole formula cannot reproduce permanent gravitational-wave memory; under boundedness and temporal localization of metric time-derivatives the late-time field decays to zero.
Dynamical-systems analysis claiming that NS5-brane wrapped 'effective strings' (β=1/6) absorb enough energy from the rolling LVS volume modulus to solve the overshoot problem without invoking radiation, and leave loops at ~50% of total energy density during late-time oscillation.
Relativistic generalization of the Saint-Raymond projection method for the Chapman-Enskog expansion, giving a microscopic derivation of a first-order dissipative fluid theory in the trace-fixed particle (TFP) frame that is hyperbolic, causal, and stable.
ADM deparametrization of radial canonical AdS3 gravity yields a 'volume time' formulation and a BTZ wavepacket solution to the radial Wheeler-DeWitt equation.