A family of pandiagonal bimagic squares based on orthogonal arrays
โ Scribed by Kejun Chen; Wen Li; Fengchu Pan
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 126 KB
- Volume
- 19
- Category
- Article
- ISSN
- 1063-8539
No coin nor oath required. For personal study only.
โฆ Synopsis
In this article we give a construction of pandiagonal bimagic squares by means of four-dimensional bimagic rectangles, which can be obtained from orthogonal arrays with special properties. In particular, we show that there exists a normal pandiagonal bimagic square of order n 4 for all positive integer n โฅ 7 such that gcd(n, 30) = 1, which gives an answer to problem 22 of Abe in [Discrete Math 127 (1994), 3-13].
๐ SIMILAR VOLUMES
Although gamma cameras have emerged in the 1960s, their spatial resolution is still not sufficient to detect small tracer concentration abnormalities. Examinations like mammo-scintigraphy requires high spatial resolution and then the possibility to position the detector as close to the explored orga