3 papers
gr-qc2026
A Semilinear Wave Sector in Force-Free Electrodynamics
Yafet E. Sanchez Sanchez
We introduce an ansatz for force-free electrodynamics in Minkowski spacetime under which the nonlinear system reduces to a semilinear scalar wave equation depending on two spacetim…
gr-qc2026
An Upper Bound for the Mass of Microscopic Clocks
Bruno Arderucio Costa, Yafet E. Sanchez Sanchez
According to general relativity, clocks are the basic measuring devices needed to probe spacetime geometry. However, it is generally accepted that the mass of clocks capable of mea…
math.AP2024
The Sobolev Wavefront Set of the Causal Propagator in Finite Regularity
Yafet Sanchez Sanchez, Elmar Schrohe
Given a globally hyperbolic spacetime of dimension four and regularity , we estimate the Sobolev wavefront set of the causal propagator of the K…