Churchill, Lorne Winston2024-08-132024-08-1319821982https://hdl.handle.net/1828/17486In this thesis General Relativistic and Newtonian solutions are derived for a spherically symmetric core and shell of charged perfect fluid in balanced equilibrium. The Darmois junction con­ditions are imposed in order to prevent the occurrence of singular boundary surfaces in the solutions. This enables a simple, logical definition of balance for the system. Newtonian solutions are der­ived and these show that this system possesses more freedom than that of two balanced particles. No single balance condition is found. Relativistic solutions are derived and compared to the Newtonian system. It is found that the properties of the Relativ­istic case are similar to, but more restricted than, those of the Newtonian case.97 pagesAvailable to the World Wide WebThesis