Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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Outline of Final Research Achievements |
We made several researches mainly on symmetries and mapping class groups on the surfaces embedded in 3 or 4-dimensional manifolds from the topological viewpoint. Especially, we obtained results on Dehn-twist presentations for the finite group actions on orientable closed surface of genus 3 or 4, Goeritz groups of bridge surfaces of knots in a 3-sphere, and branched virtual fibrations of 3-manifolds.
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