Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9514626 | Electronic Notes in Discrete Mathematics | 2005 | 11 Pages |
Abstract
We consider the problem of recognizing arbitrary finite subsets of Z2 by X-rays corresponding to a small set of directions S. We show that if we fix any rectangle A in Z2 then there exists a so called valid set S of four directions (at least when A is not too "small") depending only on the size of A such that any two subsets of A can be distinguished, using these directions only. By our approach this result can easily be extended to any lattice, in any dimension.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Lajos Hajdu,