mutually orthogonal Latin squares;
net;
ovals in nets;
projective Hjelmslev plane;
D O I:
10.1023/B:DESI.0000032607.03637.1c
中图分类号:
TP301 [理论、方法];
学科分类号:
081202 ;
摘要:
We establish the non- existence of a maximal set of four mols ( mutually orthogonal Latin squares) of order 8 and the non- existence of (8, 5) projective Hjelmslev planes. We present a maximal set of four mols of order 9.
机构:
Osaka Inst Technol, Fac Informat Sci & Technol, Fac Engn, Hirakata, Osaka 5730196, JapanOsaka Inst Technol, Fac Informat Sci & Technol, Fac Engn, Hirakata, Osaka 5730196, Japan
Kubota, Sho
Suda, Sho
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机构:
Natl Def Acad Japan, Dept Math, Yokosuka, Kanagawa 2398686, JapanOsaka Inst Technol, Fac Informat Sci & Technol, Fac Engn, Hirakata, Osaka 5730196, Japan
Suda, Sho
Urano, Akane
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机构:
Shanghai Japanese Sch Pudong Campus, Shanghai 201204, Peoples R ChinaOsaka Inst Technol, Fac Informat Sci & Technol, Fac Engn, Hirakata, Osaka 5730196, Japan