Self-assembly of discrete self-similar fractals

  • Authors:
  • Matthew J. Patitz;Scott M. Summers

  • Affiliations:
  • Department of Computer Science, Iowa State University, Ames, USA 50011;Department of Computer Science, Iowa State University, Ames, USA 50011

  • Venue:
  • Natural Computing: an international journal
  • Year:
  • 2010

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Abstract

In this paper, we search for theoretical limitations of the Tile Assembly Model (TAM), along with techniques to work around such limitations. Specifically, we investigate the self-assembly of fractal shapes in the TAM. We prove that no self-similar fractal weakly self-assembles at temperature 1 in a locally deterministic tile assembly system, and that certain kinds of discrete self-similar fractals do not strictly self-assemble at any temperature. Additionally, we extend the fiber construction of Lathrop et al. (2009) to show that any discrete self-similar fractal belonging to a particular class of "nice" discrete self-similar fractals has a fibered version that strictly self-assembles in the TAM.