204 citations · 657 across the 55 of their papers we have counts for
4 papers · 1 filter
Homological actions on sutured Floer homology
Yi Ni
We define the action of the homology group on the sutured Floer homology . It turns out that the contact invariant is usually sent to zero…
Cosmetic surgeries on knots in
Yi Ni, Zhongtao Wu
Two Dehn surgeries on a knot are called {\it purely cosmetic}, if they yield manifolds that are homeomorphic as oriented manifolds. Suppose there exist purely cosmetic surgeries on…
Dehn surgeries on knots in product manifolds
Yi Ni
We show that if a surgery on a knot in a product sutured manifold yields the same product sutured manifold, then this knot is a 0-- or 1--crossing knot. The proof uses techniques f…
Thurston norm and cosmetic surgeries
Yi Ni
Two Dehn surgeries on a knot are called cosmetic if they yield homeomorphic manifolds. For a null-homologous knot with certain conditions on the Thurston norm of the ambient manifo…