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AN UNKNOTTING LEMMA FOR SYSTEMS OF ARCS IN FXI
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AN UNKNOTTING LEMMA FOR SYSTEMS OF ARCS IN FXI

C Frohman
Pacific journal of mathematics, Vol.139(1), pp.59-66
09/01/1989
DOI: 10.2140/pjm.1989.139.59

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Abstract

A criterion for the unknottedness of a system of arcs in the cartesian product of a closed surface and the unit interval is given. © 1989 by Pacific Journal of Mathematics.
Mathematics Physical Sciences Science & Technology

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