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Shigeyuki Morita

3 papers hereh-index 5178 citations6 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • first author1
  • last author2

Across the 3 of 3 papers where every author was matched, so the position is known.

fields
  • math.GT2
  • math.SG1

identity via Semantic Scholar / OpenAlex

activity
20032026
most citedSignatures of foliated surface bundles and the symplectomorphism groups of surfaces

22 citations · 22 across the 3 of their papers we have counts for

collaborators

3 papers

math.GT2026

Real analytic lift of foliations of Thurston and Tsuboi

Teruaki Kitano, Yoshihiko Mitsumatsu, Shigeyuki Morita

Thurston constructed codimension one foliations on S3 thereby proved that the homomorphism gv:π3​(BΓ1∞​)→R induced by the Godbillon-Vey inv…

math.GT2006

Torelli groups, extended Johnson homomorphisms, and new cycles on the moduli space of curves

S. Morita, R. C. Penner

Infinite presentations are given for all of the higher Torelli groups of once-punctured surfaces. In the case of the classical Torelli group, a finite presentation of the correspon…

math.SG2003★ 22 cited

Signatures of foliated surface bundles and the symplectomorphism groups of surfaces

D. Kotschick, S. Morita

For any closed oriented surface F of genus at least three, we prove the existence of foliated F-bundles over surfaces such that the signatures of the total spaces are non-zero. We…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.