Using the real-space renormalization group transformation method, critical behavior on two-dimension and d-dimension(d>2) X fractal lattices is studied.
采用实空间重整化群变换的方法，研究了2维和d（d>2）维X分形晶格上的临界性质。
These transformations are made up of renormalization group. Then the fixed point of transformation can be found, among which those unstable ones are critical points of phase transition.
然后找出重整化变换的不动点，在所有不动点中那些不稳定不动点是发生相变的临界点。
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