Signed shape tilings of squares

Details Signed shape tilings of squares Signed shape tilings of squares

1998-09-21

arxiv.org/abs/math/9809118v2

Mathematics

Combinatorics

LaTeX, 14 pages, to appear in Discrete Mathematics. This version differs from the original only cosmetically

Scientific paper

Let T be a tile in the Cartesian plane made up of finitely many rectangles whose corners have rational coordinates and whose sides are parallel to the coordinate axes. This paper gives necessary and sufficient conditions for a square to be tilable by finitely many \Q-weighted tiles with the same shape as T, and necessary and sufficient conditions for a square to be tilable by finitely many \Z-weighted tiles with the same shape as T. The main tool we use is a variant of F. W. Barnes's algebraic theory of brick packing, which converts tiling problems into problems in commutative algebra.

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