Research Output per year

## 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

##
Network
Recent external collaboration on country level. Dive into details by clicking on the dots.

## Research Output 1988 2019

### 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 journal › Article

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 journal › Article

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 journal › Article

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 journal › Article

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 journal › Article

Bilinear Map

Prime Ideal

Tensor

Minor

Open Map