Jiajun Wang

Teaching

Previous courses

• Fall 2023: Geometry I
• Spring 2023: Homotopy Theory
• Fall 2022: Geometry
• Spring 2022: Differential Topology
• Fall 2021: Advanced Mathematics (A)
• Spring 2021: Homotopy Theory
• Fall 2020: Topology.
• Spring 2020: Linear Algebra B.
• Fall 2019: Topology.
• Spring 2019: Homotopy Theory.
• Fall 2018: Topology.
• Spring 2018: Differential Topology.
• Fall 2017: Calculus I.
• Spring 2017: Homotopy Theory.
• Fall 2015: Topology

Seminar

• PKU topology seminar (Spring 2022: 10am-12pm on Thursdays)

Articles

• Here is a proof that 1=0.
• Here is the "Laws of Herman" and the amendments.

Program

• "quadrisecant" is a Mathematica program to compute the quadrisecants of a polygonal knot.
• "HFhat" computes the hat Heegaard Floer homology for a closed orientable three-manifold and the hat knot Floer homology of a null homologous knot in a closed orientable three-manifold.

Links