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gr-qc2026
Spherical thin shells with charge in unimodular gravity
Gabriel R. Bengochea, Ernesto F. Eiroa, Griselda Figueroa-Aguirre
We construct spherically symmetric thin shells in unimodular gravity (UG) and analyze their dynamical stability under radial, symmetry-preserving perturbations. We use the UG junct…
gr-qc2026
Entropy and stability of an extremally charged Einstein-Born-Infeld thin shell
Ernesto Eiroa, Griselda Figueroa-Aguirre, Miguel Peñafiel
Spacetimes with a thin shell offer a framework where both the dynamical and the thermodynamical stability of the matter comprising the shell can be consistently studied. In the pre…