As the a's approach certain limiting values, one or more of which is infinite, Ta may have a definite finite transformation T as a limit. The transformation T may be regarded as a transformation of the family, and, if equivalent to a transformation Tb with finite parameters, can be generated by an infinitesimal transformation of the family (namely, bxXx + •" + brXr), but not otherwise.* Let it ...

the evolution of the family in the contemporary world has been one of the focal topics in thefamily sociology studies over past decades.the impact of modernity, especially from itscultural aspect, on the family development in the west that has led to the formation of themodern and post-modern family has beenpaid attention in recent theoretical and experimentalstudies.this research aimed to inve...