The transformation of ultrafilters and their application in constructions of attraction sets

Ultrafilters of widely interpreted measurable spaces (including the spaces with semialgebras and algebras of sets) are considered. The transformation having the sense of ultrafilter extension with semialgebra of sets onto algebra generated by this semialgebra is investigated. It is established that given transformation is a homeomorphism in the sense of the natural equipments of ultrafilter spaces realizing standard compactums (in the case of measurable spaces with algebra of sets, the space of Stone representation is realized). Questions connected with representation of attraction sets in abstract attainability problem with constraints of asymptotic character are investigated. These questions are connected with the compactifications in the class of ultrafilters of measurable spaces with semialgebras of sets and some analogs for ultrafilters of $\pi$-systems.