activity
20052026
most citedCombinatorial cobordism maps in hat Heegaard Floer theory

23 citations · 61 across the 11 of their papers we have counts for

collaborators

11 papers

math.AP2026

Polynomial growth of Sobolev norms of solutions of the fractional NLS equation on

Jiajun Wang

We study polynomial growth of Sobolev norms for the defocusing fractional nonlinear Schrödinger equation on the standard torus , . Uniform stationary phase a…

math.GT2023

Knot Floer homology and the fundamental group of knots

Matthew Hedden, Jiajun Wang, Xiliu Yang

We give an algorithm for computing the knot Floer homology of a knot from a particular presentation of its fundamental group.

math.GT2022★ 1 cited

Minimal length of nonsimple closed geodesics on hyperbolic surfaces

Wujie Shen, Jiajun Wang

In the present paper, we show that the minimal length of closed geodesics on finite-type hyperbolic surfaces with self-intersection number has order as gets large…

math.GT2019★ 1 cited

Maximal systole of hyperbolic surface with largest extendable abelian symmetry

Yue Gao, Jiajun Wang

We give the formula for the maximal systole of the surface admits the largest -extendable abelian group symmetry. The result we get is . Here \begin{eqnar…

math.GT2019★ 1 cited

Quasi-homomorphisms on mapping class groups vanishing on a handlebody group

Jiming Ma, Jiajun Wang

We construct infinitely many linearly independent quasi-homomorphisms on the mapping class group of a Riemann surface with genus at least two which vanish on a handlebody subgroup.…

math.GT2016★ 1 cited

Counterexamples to the quadrisecant approximation conjecture

Sheng Bai, Chao Wang, Jiajun Wang

A quadrisecant of a knot is a straight line intersecting the knot at four points. If a knot has finitely many quadrisecants, one can replace each subarc between two adjacent secant…