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- Zhi-Xiong Wen, Zhi-Ying Wen
- Eur. J. Comb.
- 1994

The combinatorial properties of the Fibonacci infinite word are of great interest in some aspects of mathematics and physics, such as number theory, fractal geometry, formal language, computational complexity , quasicrystals etc. In this note, we introduce the singular words of the Fibonacci infinite word and discuss their properties. We establish two… (More)

- Zhi-Xiong Wen, Jie-Meng Zhang, Wen Wu
- Eur. J. Comb.
- 2015

- Yingjun Guo, Zhi-Xiong Wen
- Theor. Comput. Sci.
- 2014

- Zhi-Xiong Wen, Zhi-Ying Wen
- Theor. Comput. Sci.
- 1992

- Xiao-Tao Lü, Jin Chen, Yingjun Guo, Zhi-Xiong Wen
- Theor. Comput. Sci.
- 2016

- Jie-Meng Zhang, Jin Chen, Yingjun Guo, Zhi-Xiong Wen
- ArXiv
- 2016

In this paper, we prove that a class of regular sequences can be viewed as projections of fixed points of uniform morphisms on a countable alphabet, and also can be generated by countable states automata. Moreover, we prove that the regularity of some regular sequences is invariant under some codings.

- Jie-Meng Zhang, Yingjun Guo, Zhi-Xiong Wen
- ArXiv
- 2015

- Bo Tan, Zhi-Xiong Wen, Yiping Zhang
- ArXiv
- 2015

We consider the complexities of substitutive sequences over a binary alphabet. By studying various types of special words, we show that, knowing some initial values, its complexity can be completely formulated via a recurrence formula determined by the characteristic polynomial.

- Jacques Peyriére, Bo Tan, Zhi-Xiong Wen, Jun Wu
- Theor. Comput. Sci.
- 2004

- Bo TAN, Zhi-Xiong WEN, Yiping ZHANG
- 2002

We study the structure of invertible substitutions on three-letter alphabet. We show that there exists a finite set S of invertible substitutions such that any invertible substitution can be written as I w • σ 1 • σ 2 • · · · • σ k , where I w is the inner automorphism associated with w, and σ j ∈ S for 1 ≤ j ≤ k. As a consequence, M is the matrix of an… (More)