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Prof.
Zdeněk Stuchlík
(Silesian University in Opava, Czech Republic)
19/10/2020, 13:00
Online talk
Camilo Posada
(Silesian University in Opava)
19/10/2020, 13:15
Online talk
The dynamical instability of relativistic polytropic spheres, embedded in a spacetime with a repulsive cosmological constant, is studied in the framework of general relativity. We apply the methods used in our preceding paper to study the trapping polytropic spheres with Λ=0, namely, the critical point method and the infinitesimal and adiabatic radial perturbations method developed by...