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Reconstructing plane sets from projections

โœ Scribed by G. Bianchi; M. Longinetti


Publisher
Springer
Year
1990
Tongue
English
Weight
931 KB
Volume
5
Category
Article
ISSN
0179-5376

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Rend], F. and G. Woeginger, Reconstructing sets of orthogonal line segments in the plane, Discrete Mathematics 119 (1993) 1677174. We show that reconstructing a set of n orthogonal line segments in the plane from the set of their vertices can be done in O(n log n) time, if the segments are allowed

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On the set of n2+ n + 1 points of a projective plane, a set of ta2 + n -I-1 permutations is constructed with the property that any two are a Hamming distance 2n + 1 apart. Another set is constructed in which every pak are a Hamming distance not greater than 2n + 1 apart. Both sets are maximal with r

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โœ J.D. Key; M.J. de Resmini ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 311 KB

Let \(\Pi^{*}\) be a projective plane of order \(n^{2}\) having a Baer subplane \(\Pi\), and let \(C\) be the code of \(\Pi^{*}\) over a prime field \(\mathbf{F}_{p}\), where \(p\) divides \(n\). If \(\Pi\) contains a set \(\mathscr{H}\) of type \((s, t)\), then it is shown that the incidence vector