37 citations · 106 across the 21 of their papers we have counts for
18 papers · 1 filter
Local Knots, -Sharp Knots, and Rational Slice Genus
Junghwan Park, Zhongtao Wu, Jingling Yang
Hom and Wu introduced the knot concordance invariant for knots in and proved that it gives a lower bound for the slice genus. Wu and Yang extended to knots…
Rational genus and Heegaard Floer homology
Zhongtao Wu, Jingling Yang
Turaev defined a function on the first homology of a rational homology 3-sphere as the minimal rational Seifert genus of all knots in this homology class. Ni and the first auth…
Nonexistence and existence of fillable contact structures on 3-manifolds
Fan Ding, Youlin Li, Zhongtao Wu
In the first part of this paper, we construct infinitely many hyperbolic closed 3-manifolds which admit no symplectic fillable contact structure. All these 3-manifolds are obtained…
Alexander polynomial and spanning trees
Yuanyuan Bao, Zhongtao Wu
Inspired by the combinatorial constructions in earlier work of the authors that generalized the classical Alexander polynomial to a large class of spatial graphs with a balanced we…
Contact (+1)-surgeries on rational homology 3-spheres
Fan Ding, Youlin Li, Zhongtao Wu
In this paper, sufficient conditions for contact -surgeries along Legendrian knots in contact rational homology 3-spheres to have vanishing contact invariants or to be overtw…
Studies of distance one surgeries on the lens space
Zhongtao Wu, Jingling Yang
In this paper, we study distance one surgeries between lens spaces with prime and lens spaces for and band surgeries from t…