Displaying similar documents to “Heegaard splittings of exteriors of two bridge knots.”

Tangle decompositions of satellite knots.

Chuichiro Hayashi, Hiroshi Matsuda, Makoto Ozawa (1999)

Revista Matemática Complutense

Similarity:

We study when an essential tangle decomposition of a satellite knot gives an essential tangle decomposition of the companion knot, that is, when the decomposing sphere can be isotoped to intersect the knotted solid torus identified with the pattern in meridian disks.

An unknotting theorem for tori in 4-dimensional spheres.

Akiko Shima (1998)

Revista Matemática Complutense

Similarity:

Let T be a torus in S4 and T* a projection of T. If the singular set Gamma(T*) consists of one disjoint simple closed curve, then T can be moved to the standard position by an ambient isotopy of S4.