studying some knot theory and just had a question, wondering if anyone can clarify or shed some light:
I'm reading The Knot Book by Colin C. Adams, and it says that Composite knots are not completely determined by Dowker Notation.
Upon a little further research, I found that a composite knot 'may be reflected in the line between it's entry and exit points', when recovered by Dowker Notation.
I'm not sure exactly what this means , i.e. how can a Knot have an entry and exit point? And why is this the case? Is anyone able to clarify this a bit more for me?