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Synchronism of an incompressible non-free Seifert surface for a knot and an algebraically split closed incompressible surface in the knot complement
Authors:Makoto Ozawa
Affiliation:Department of Science, School of Education, Waseda University, 1-6-1 Nishiwaseda, Shinjuku-ku, Tokyo 169-8050, Japan
Abstract:We give a necessary and sufficient condition for knots to bound incompressible non-free Seifert surfaces.

Keywords:Seifert surface   closed incompressible surface
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