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Hole-Free Partially Directed Animals

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Developments in Language Theory (DLT 2019)

Part of the book series: Lecture Notes in Computer Science ((LNTCS,volume 11647))

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Abstract

We consider the class of hole-free partially directed animals. This is the class of all polyominoes P such that every cell of P can be reached from any cell in the first column of P with a path (inside P) which makes only North, South and East steps, and such that there is not a finite region of empty unitary squares which is surrounded by cells belonging to P. We provide a generation algorithm that allows us to enumerate in constant amortized time using O(n) space.

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Author information

Authors and Affiliations

  1. Dipartimento di Scienze teoriche e applicate, Università degli studi dell’Insubria, Varese, Italy

    Paolo Massazza

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  1. Paolo Massazza
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Correspondence to Paolo Massazza .

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Editors and Affiliations

  1. University of Warsaw, Warsaw, Poland

    Piotrek Hofman

  2. University of Warsaw, Warsaw, Poland

    Michał Skrzypczak

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Massazza, P. (2019). Hole-Free Partially Directed Animals. In: Hofman, P., Skrzypczak, M. (eds) Developments in Language Theory. DLT 2019. Lecture Notes in Computer Science(), vol 11647. Springer, Cham. https://doi.org/10.1007/978-3-030-24886-4_16

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  • DOI: https://doi.org/10.1007/978-3-030-24886-4_16

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  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-030-24885-7

  • Online ISBN: 978-3-030-24886-4

  • eBook Packages: Computer ScienceComputer Science (R0)

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