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An unknotting lemma
for systems of arcs in F
× I
Charles Dale Frohman |
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Vol. 139 (1989), No. 1, 59–66
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Abstract |
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A criterion for the unknottedness of a system of arcs in the cartesian product of a closed surface and the unit interval is given. |
Mathematical Subject Classification 2000
Primary: 57M25
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Milestones
Received: 10 March 1987
Revised: 15 July 1988
Published: 1 September 1989
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Authors |
| Charles Dale Frohman | |
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