114 research outputs found

    The finite tiling problem is undecidable in the hyperbolic plane

    Full text link
    In this paper, we consider the finite tiling problem which was proved undecidable in the Euclidean plane by Jarkko Kari in 1994. Here, we prove that the same problem for the hyperbolic plane is also undecidable

    Tiling Problems on Baumslag-Solitar groups

    Full text link
    We exhibit a weakly aperiodic tile set for Baumslag-Solitar groups, and prove that the domino problem is undecidable on these groups. A consequence of our construction is the existence of an arecursive tile set on Baumslag-Solitar groups.Comment: In Proceedings MCU 2013, arXiv:1309.104

    About the domino problem in the hyperbolic plane from an algorithmic point of view

    Get PDF
    In this paper, we prove that the general problem of tiling the hyperbolic plane with \`a la Wang tiles is undecidable.Comment: 11 pages, 6 figure

    Constructing a uniform plane-filling path in the ternary heptagrid of the hyperbolic plane

    Full text link
    In this paper, we distinguish two levels for the plane-filling property. We consider a simple and a strong one. In this paper, we give the construction which proves that the simple plane-filling property also holds for the hyperbolic plane. The plane-filling property was established for the Euclidean plane by J. Kari, in 1994, in the strong version

    The domino problem on groups of polynomial growth

    Full text link
    We characterize the virtually nilpotent finitely generated groups (or, equivalently by Gromov's theorem, groups of polynomial growth) for which the Domino Problem is decidable: These are the virtually free groups, i.e. finite groups, and those having Z\Z as a subgroup of finite index
    • …
    corecore