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6 results on '"Kamada, Seiichi"'

1. Doodles on Surfaces

Author

Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, Kamada, Seiichi, Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, and Kamada, Seiichi

Abstract

Doodles were introduced in [7] but were restricted to embedded circles in the 2-sphere. Khovanov, [15], extended the idea to immersed circles in the 2-sphere. In this paper we further extend the range of doodles to any closed oriented surface….

Published
2018

2. Doodles on Surfaces

Author

Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, Kamada, Seiichi, Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, and Kamada, Seiichi

Abstract

Doodles were introduced in [7] but were restricted to embedded circles in the 2-sphere. Khovanov, [15], extended the idea to immersed circles in the 2-sphere. In this paper we further extend the range of doodles to any closed oriented surface….

Published
2018

3. On Gauss codes of virtual doodles

Author

Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, Kamada, Seiichi, Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, and Kamada, Seiichi

Abstract

We discuss Gauss codes of virtual diagrams and virtual doodles. The notion of a left canonical Gauss code is introduced and it is shown that oriented virtual doodles are uniquely presented by left canonical Gauss codes.

Published
2018

4. On Gauss codes of virtual doodles

Author

Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, Kamada, Seiichi, Bartholomew, Andrew, Fenn, Roger, Kamada, Naoko, and Kamada, Seiichi

Abstract

We discuss Gauss codes of virtual diagrams and virtual doodles. The notion of a left canonical Gauss code is introduced and it is shown that oriented virtual doodles are uniquely presented by left canonical Gauss codes.

Published
2018

5. Double coverings of twisted links

Author

Kamada, Naoko, Kamada, Seiichi, Kamada, Naoko, and Kamada, Seiichi

Abstract

Twisted links are a generalization of virtual links. As virtual links correspond to abstract links on orientable surfaces, twisted links correspond to abstract links on (possibly non-orientable) surfaces. In this paper, we introduce the notion of the double covering of a twisted link....

Published
2016

6. Double coverings of twisted links

Author

Kamada, Naoko, Kamada, Seiichi, Kamada, Naoko, and Kamada, Seiichi

Abstract

Twisted links are a generalization of virtual links. As virtual links correspond to abstract links on orientable surfaces, twisted links correspond to abstract links on (possibly non-orientable) surfaces. In this paper, we introduce the notion of the double covering of a twisted link....

Published
2016

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