| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
We obtained the following results.
(1) From some strongly regular graphs, we constructed triply even codes. We showed the maximality, the weight distribution, the automorphism groups and showed some other equipped structures. (2) On a series of triply even codes constructed from finite geometries, we showed some lemmas. (3) From triply even codes, we constructed some secret sharing schemes. (4) We made some sense of a lattice over a quadratic field constructed from a quaternary code in relations to triply even codes. (5) We calculated some subgroups of the Conway0 group which is the automorphism group of the Leech lattice.
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