Resource-Bounded Kolmogorov Complexity Provides an Obstacle to Soficness of Multidimensional Shifts

preprint2022arXivOpen access

Abstract

We suggest necessary conditions of soficness of multidimensional shifts formulated in termsof resource-bounded Kolmogorov complexity. Using this technique we provide examples ofeffective and non-sofic shifts on Z2\mathbb{Z}^2 with very low block complexity: the number of globallyadmissible patterns of size n×nn\times n grows only as a polynomial in nn. We also show that moreconventional proofs of non-soficness for multi-dimensional effective shifts can be expressed interms of Kolmogorov complexity with unbounded computational resources.

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