Enumeration of Symmetry Classes of Conve
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P. Leroux; E. Rassart; A. Robitaille
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Article
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1998
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Elsevier Science
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English
β 544 KB
This paper concerns the enumeration of rotation-type and congruence-type convex polyominoes on the square lattice. These can be defined as orbits of the Ε½ groups α , of rotations, and α , of symmetries, of the square, acting on transla-4 4 . tion-type polyominoes. By virtue of Burnside's lemma, it i