# Publishing house / Banach Center Publications / All volumes

## Reidemeister-type moves for surfaces in four-dimensional space

### Volume 42 / 1998

Banach Center Publications 42 (1998), 347-380 DOI: 10.4064/-42-1-347-380

#### Abstract

We consider smooth knottings of compact (not necessarily orientable) n-dimensional manifolds in $ℝ^{n+2}$ (or $S^{n+2}$), for the cases n=2 or n=3. In a previous paper we have generalized the notion of the Reidemeister moves of classical knot theory. In this paper we examine in more detail the above mentioned dimensions. Examples are given; in particular we examine projections of twist-spun knots. Knot moves are given which demonstrate the triviality of the 1-twist spun trefoil. Another application is a smooth version of a result of Homma and Nagase on a set of moves for regular homotopies of surfaces.

#### Authors

• Dennis Roseman

## Search for IMPAN publications

Query phrase too short. Type at least 4 characters.