Abstract (eng)
This work summarizes the many attempts to understand the saturation of
the nonstationary ideal, starting with Solovays Splitting Theorem, proven by a
generic ultrapower construction.
In further consequnce we prove some deep results concerning the saturation of the nonstationary ideal following the ideas of S. Shelah, M. Gitik, M. Foreman and M. Magidor. The last chapter, according
to the work of M. Foreman, M. Magidor and D.R. Burke, Y. Matsubara respectively,
investigates the saturation of the generalized nonstationary ideal.