I vaguely recall that formula of representation of quasicrystals is relevant to tiling plane,and tiling plane without period is relevant to recursiveness, and do not know the mechanism or physics law by which the quasicrystals are produced or formed.


What are the formula of representation of quasicrystals and the law or mechanism of the formation



What are the formula of representation of quasicrystals and the law or mechanism of the formation
You might look at work of Charles Radin: [listed here](http://www.ma.utexas.edu/users/radin/tiling.html), especially the survey article #8 and the book review #11. 


