3 papers
math.GT2025
Parallelization of Welded Links
Naoko Kamada, Seiichi Kamada
The notion of a welded link was introduced by Fenn, Rimányi, and Rourke as an analogue of welded braids. A welded link is defined as an equivalence class of link diagrams that may…
math.GT2024
Invariants of virtual links and twisted links using affine indices
Naoko Kamada, Seiichi Kamada
The affine index polynomial and the -writhe are invariants of virtual knots which are introduced by Kauffman and by Satoh and Taniguchi independently. They are defined by using…
math.GT2024
Classification of generalized Alexander quandles
Akihiro Higashitani, Seiichi Kamada, Jin Kosaka +1
The aim of this paper is to provide a new characterization of isomorphism classes of generalized Alexander quandles in terms of the underlying groups and their automorphisms. This…