On composite types of tunnel number two knots

Abstract

Let $K$ be a tunnel number two knot. Then, by considering the $(g,b)$-decompositions, $K$ is one of (3, 0)-, (2, 1)-, (1, 2)- or (0, 3)-knots. In the present paper, we analyze the connected sum summands of composite tunnel number two knots and give a complete table of those summands from the point of view of $(g,b)$-decompositions.

10 pages, 1 table, 7 figures

References in corpus (1)

• High distance knots