Subshifts of multi-dimensional shifts of finite type
Subshifts of multi-dimensional shifts of finite type
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DOI:
10.1017/s0143385700000468
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发表时间:
2000-06
影响因子:
0.9
通讯作者:
A. Quas;Paul Trow
中科院分区:
文献类型:
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作者:
A. Quas;Paul Trow
We show that every shift of finite type $X$ with positive entropy has proper subshifts of finite type with entropy strictly smaller than the entropy of $X$, but with entropy arbitrarily close to the entropy of $X$. Consequently, $X$ contains an infinite chain of subshifts of finite type which is strictly decreasing in entropy.