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The problem of designing an efficient algorithm for deciding whether a given polygon tiles the plane becomes more tractable when restricted to polyominoes, that is, subsets of the square lattice Z… (More)

- Samantha A. Labb, Ashley Sorcic, Yifen Tsai, Derek R. McLain
- Journal of Radioanalytical and Nuclear Chemistry
- 2019

Age dating of Cs-137 sources requires the accurate and precise quantification of the isotope Ba-137. In previous efforts to determine the age of Cs-137 source material, variation in Ba recovery was… (More)

We consider here the tilings by translation of a single polyomino or tile on the square grid Z 2 . It is well-known that there are two regular tilings of the plane, namely, parallelogram and… (More)

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