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Quasi-symmetric Designs and Self-dual Codes

โœ Scribed by Tonchev, Vladimir D.


Book ID
122355758
Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
483 KB
Volume
7
Category
Article
ISSN
0195-6698

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โœ Lander, E. S. ๐Ÿ“‚ Article ๐Ÿ“… 1981 ๐Ÿ› Oxford University Press ๐ŸŒ English โš– 263 KB
Binary codes and quasi-symmetric designs
โœ A.R. Calderbank; P. Frankl ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 263 KB

obtain a new for the of a -(u, A) design the block intersection st, sZ, . . , s, satisfy sr -sZ-. . . = s, = s(mod 2). This condition eliminates quasi-symmetric 2 -(20,10,18) and 2 -(60,30,58) designs. Quasi-symmetric 2 -(20,8,14) designs are eliminated by an ad hoc coding theoretic argument. A 2 -