2 papers
gr-qc2018
An Anisotropic stellar model
D Kokkinos, D Pliakis, T Papakostas
We present the matching of two solutions belonging both to Carter's family [A] of metrics.The interior solution has been found by one of us [1] and represents an anisotropic fluid,…
math-ph2013
Spectrally determined singularities in a potential with an inverse square initial term
Demetrios A. Pliakis
We study the inverse spectral problem for Bessel type operators with potential (v(x)): (H_κ=-\partial_x^2+\frac{k}{x^2}+v(x)). The potential is assumed smooth in ((0,R)) and with a…