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Maximal partial spreads and the modular n-queen problem

✍ Scribed by Olof Heden

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
1000 KB
Volume
120
Category
Article
ISSN
0012-365X

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πŸ“œ SIMILAR VOLUMES

Maximal partial spreads and the modular
Maximal partial spreads and the modular n-queen problem II
✍ Olof Heden πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 624 KB

We prove that if q + 1 E 8 or 16 (mod 24) then, for any integer n in the interval (q2 + 1)/2 + 3 < n < (Sq' + 4q + 7)/8, there is a maximal partial spread of size n in PG(3, q).

The modular n-queen problem
The modular n-queen problem
✍ Torleiv KlΓΈve πŸ“‚ Article πŸ“… 1977 πŸ› Elsevier Science 🌐 English βš– 228 KB

## Received 19 Ianu~y 19% WC show that the modular n-queen prohlcm has a solutton if and only if gcd(n, 6,) = I. We give a class of solutions for all thcsc n.

On the modular n-queen problem
On the modular n-queen problem
✍ Olof Heden πŸ“‚ Article πŸ“… 1992 πŸ› Elsevier Science 🌐 English βš– 408 KB

Heden, O., On the modular n-queen problem, Discrete Mathematics 102 (1992) 155-161. Let M(n) denote the maximum number of queens on a modular chessboard such that no two attack each other. We prove that if 4 or 6 divides n then M(n) c n -2 and if gcd(n, 24) = 8 then M(n) 2 n -2. We also show that M