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Paper detail

Saturated Domino Coverings

A domino covering of a board is saturated if no domino is redundant. We introduce the concept of a fragment tiling and show that a minimal fragment tiling always corresponds to a maximal saturated domino covering. The size of a minimal fragment tiling is the domination number of the board. We define a class of regular boards and show that for these boards the domination number gives the size of a minimal X-pentomino covering. Natural sequences that count maximal saturated domino coverings of square and rectangular boards are obtained. These include the new sequences A193764, A193765, A193766, A193767, and A193768 of OEIS.

preprint2011arXivOpen access
Andrew BuchananTanya KhovanovaAlex Ryba
math.CO
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Andrew BuchananTanya KhovanovaAlex Ryba

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