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Conference Papers Discrete Mathematics and Theoretical Computer Science Year : 2005

Counting Polyominoes on Twisted Cylinders

Abstract

We improve the lower bounds on Klarner's constant, which describes the exponential growth rate of the number of polyominoes (connected subsets of grid squares) with a given number of squares. We achieve this by analyzing polyominoes on a different surface, a so-called $\textit{twisted cylinder}$ by the transfer matrix method. A bijective representation of the "states'' of partial solutions is crucial for allowing a compact representation of the successive iteration vectors for the transfer matrix method.
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Dates and versions

hal-01184435 , version 1 (14-08-2015)

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Gill Barequet, Micha Moffie, Ares Ribó, Günter Rote. Counting Polyominoes on Twisted Cylinders. 2005 European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05), 2005, Berlin, Germany. pp.369-374, ⟨10.46298/dmtcs.3446⟩. ⟨hal-01184435⟩

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