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A Proof of the Jungnickel-Tonchev Conjecture on Quasi-Multiple Quasi-Symmetric Designs

โœ Scribed by Sharad Sane


Book ID
110299209
Publisher
Springer
Year
2001
Tongue
English
Weight
53 KB
Volume
23
Category
Article
ISSN
0925-1022

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Jungnickel and Tonchev conjectured in [4] that if a quasi-symmetric design D is an s-fold quasi-multiple of a symmetric (v,k, A) design with (k, (sl)A) = 1, then D is a multiple. We prove this conjecture under any one of the conditions: s 5 7, k -1 is prime, or the design D is a 3-design. It is show

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