2 papers
math-ph2026
Combining Symmetries and Helmholtz's Conditions to Construct Lagrangians
Merced Montesinos, Diego Gonzalez, Jorge Meza
We present new relations derived from Noether's identity that reveal the compatibility between the components of the Hessian matrix of the Lagrangian, the infinitesimal symmetry tr…
gr-qc2025
Classical and quantum trace-free Einstein cosmology
Merced Montesinos, Abdel Pérez-Lorenzana, Jorge Meza +1
Trace-free Einstein gravity, in the absence of matter fields and using the Friedmann-Robertson-Walker (FRW) metric, is solvable both classically and quantum mechanically. This is a…