Feature Column Archive
For any choice of m(not necessarily different) indices i1, ... , imbetween 1 and d,define the m-point function as follows:
The m-point functions are a step towards the ultimate aim of our calculation.They enter at this moment because they can be calculatedby repeated differentiation of Zb
For example, note that
So the 1-point function <vi>is given by
Similarly the m-point function is given by
Welcome to the
These web essays are designed for those who have already discovered the joys of mathematics as well as for those who may be uncomfortable with mathematics.
Read more . . .
Search Feature Column
Feature Column at a glance