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Disk surgery and the primitive disk complexes of the $3$-sphere

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arxiv 1812.10241 v1 pith:P2GGNWPY submitted 2018-12-26 math.GT

classification math.GT
keywords diskprimitivesplittingsurgerydisksspherealongclosed
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abstract

Given a genus-$g$ Heegaard splitting of the $3$-sphere with $g \ge 3$, we show that the primitive disk complex for the splitting is not weakly closed under disk surgery operation. That is, there exist two primitive disks in one of the handlebodies of the splitting such that any disk surgery on one along the other one yields no primitive disks.

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