Ideal-mappings over measurable spaces and their properties
WU Nian-feng · Journal of Northwest Normal University · 2008
The notion of ideal-mappings is introduced.It is shown that the ideal-mappings are more general than the bijective mappings,and moreover their actions on a set class and the operations of generating a sigma-algebra,a monotone class and a λ-class are commutative.Finally a very short proof is given to a known result.