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math.GT2001
Closed incompressible surfaces in the complements of positive knots
Makoto Ozawa
We show that any closed incompressible surface in the complement of a positive knot is algebraically non-split from the knot, positive knots cannot bound non-free incompressible Se…
math.GT2001
Impossibility of obtaining split links from split links via twistings
Makoto Ozawa
We show that if a split link is obtained from a split link in by -Dehn surgery along a trivial knot , then the link is splittable. That is to say, it is…