Quasi-symmetric designs on $ 56 $ points
نویسندگان
چکیده
<p style='text-indent:20px;'>Computational techniques for the construction of quasi-symmetric block designs are explored and applied to case with <inline-formula><tex-math id="M2">\begin{document}$ 56 $\end{document}</tex-math></inline-formula> points. One new id="M3">\begin{document}$ (56,16,18) many id="M4">\begin{document}$ (56,16,6) discovered, non-existence id="M5">\begin{document}$ (56,12,9) id="M6">\begin{document}$ (56,20,19) certain automorphism groups is proved. The number known symmetric id="M7">\begin{document}$ (78,22,6) also significantly increased.</p>
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ژورنال
عنوان ژورنال: Advances in Mathematics of Communications
سال: 2021
ISSN: ['1930-5346', '1930-5338']
DOI: https://doi.org/10.3934/amc.2020086