Knots with distinct primitive/primitive and primitive/Seifert representatives.

link: http://arxiv.org/abs/0909.0476
Abstract

Berge described a class of knots that lie on the genus 2 Heegaard surface $F$
in $S^3$ that are primitive/primitive with respect to $F$. Later Dean described
a similar class of knots that are primitive/Seifert with respect to $F$. Here
we describe two families of such knots that have distinct embeddings in $F$.