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Fingerprint Dive into the research topics where Toshio Sumi is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 2 Similar Profiles
Tensor Mathematics
Number field Mathematics
Module Mathematics
Alexander Polynomial Mathematics
CW-complex Mathematics
Finiteness Mathematics
Maximal Rank Mathematics
Finite Group Mathematics

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Research Output 1988 2019

  • 71 Citations
  • 5 h-Index
  • 22 Article
  • 1 Conference contribution

Classification of ribbon 2-knots presented by virtual arcs with up to four crossings

Kanenobu, T. & Sumi, T., Sep 1 2019, In : Journal of Knot Theory and its Ramifications. 28, 10, 1950067.

Research output: Contribution to journalArticle

Alexander Polynomial
Knot
Arc of a curve
Knot Group
Branched Covering

Typical ranks of semi-tall real 3-tensors

Sumi, T., Miyazaki, M. & Sakata, T., Jan 1 2019, In : Linear and Multilinear Algebra.

Research output: Contribution to journalArticle

Tensor
Bilinear Map
Number field
Valid
If and only if
1 Citation (Scopus)

Classification of a family of ribbon 2-knots with trivial Alexander polynomial

Kanenobu, T. & Sumi, T., Jan 1 2018, In : Communications of the Korean Mathematical Society. 33, 2, p. 591-604 14 p.

Research output: Contribution to journalArticle

Alexander Polynomial
Knot
Trivial
Polynomials
Classify
1 Citation (Scopus)

Typical ranks of certain 3-tensors and absolutely full column rank tensors

Miyazaki, M., Sumi, T. & Sakata, T., Jan 2 2018, In : Linear and Multilinear Algebra. 66, 1, p. 193-205 13 p.

Research output: Contribution to journalArticle

Tensor Rank
Tensor
2 Citations (Scopus)

Typical ranks for 3-tensors, nonsingular bilinear maps and determinantal ideals

Sumi, T., Miyazaki, M. & Sakata, T., Feb 1 2017, In : Journal of Algebra. 471, p. 409-453 45 p.

Research output: Contribution to journalArticle

Bilinear Map
Prime Ideal
Tensor
Minor
Open Map