Ying‐Qing Wu

activity

19982000

collaborators

7 papers

math.GT2000

Completely tubing compressible tangles and standard graphs in genus one 3-manifolds

Ying-Qing Wu

We prove a conjecture of Menasco and Zhang that if a tangle is completely tubing compressible then it consists of at most two families of parallel strands. This is related to probl…

math.GT2000

Incompressible surfaces in link complements

Ying-Qing Wu

We generalize a theorem of Finkelstein and Moriah and show that if a link $L$ has a $2 n$ -plat projection satisfying certain conditions, then its complement contains some closed ess…

math.GT2000

The classification of exceptional Dehn surgeries on 2-bridge knots

Mark Brittenham, Ying-Qing Wu

We will classify all exceptional Dehn surgeries on 2-bridge knots according to whether they produce reducible, toroidal, or small Seifert fibered manifolds.

math.GT1999

Knots and links without parallel tangents

Ying-Qing Wu

Steinhaus conjectured that every closed oriented $C^{1}$ -curve has a pair of anti-parallel tangents. Porter disproved the conjecture by showing that there exist curves with no anti-p…

math.GT1999

Immersed surfaces and Dehn surgery

Ying-Qing Wu

Let $F$ be a proper essential immersed surface in a hyperbolic 3-manifold $M$ with boundary disjoint from a torus boundary component $T$ of $M$ . Let $α$ be the set of coannular slo…

math.GT1998

Annular and boundary reducing Dehn fillings

Cameron McA. Gordon, Ying-Qing Wu

A manifold M is simple if it contains no essential disk, sphere, annulus or torus. If M is simple and two Dehn fillings M(r_1), M(r_2) are nonsimple, then there is an upper bound o…