### Brief Introduction

I recently graduated as a Ph.D. from the Mathematics Department at The Ohio State University. My advisor was Prof. Herb Clemens. I study algebraic geometry and my research interests lie in topology of algebraic varieties, Hodge theory, D-modules, geometry of cubic threefolds/fourfolds, moduli space of curves and sheaves.

I will become a Golomb Visiting Assistant Professor of Mathematics at Department of Mathematics, Purdue University in August 2022.

Here is my CV.

My name in Chinese character: 张义龙 (Simplified), 張義龍 (Traditional)

### Research

*Cohomology of Hypersurfaces in P^4 and Tube Mapping*, in preparation, 17 pages. slides

*Topological Abel-Jacobi Map for Hypersurfaces in Projective Four-Space (thesis)*pdf

*Topological Abel-Jacobi Map and Mixed Hodge Structures.*arXiv:2109.05717

*Hilbert Scheme of Skew Lines on Cubic Threefolds and Locus of Primitive Vanishing Cycles.*arXiv:2010.11622

### Recent and Upcoming Talks/Events

### Seminars at OSU

Here are Algebraic Geometry Seminar and Arithmetic Geometry Seminar, and Graduate Student Algebraic Geometry Seminar at OSU.Here is a series of student seminars on algebraic geometry that I organized in the past with the guidance of Herb Clemens:

These are preceded by a series of reading seminars led by Herb Clemens:

I also co-organized the Graduate Student Algebraic Geometry Seminar with Aniket Shah in Sp 19, Au 19, and Sp 20. It was later run by Deniz Genlik. Here is the current website.

### Teaching

In Au 2021, I was a graduate research associate for Prof. Marty Golubitsky and my responsibility was to make exercises for an online Linear Algebra book, which is available on GitHub.I was a teaching assistant in the following courses in the past:

### Outreach

In Spring 2022, I'm mentoring two undergraduate students in Math Cycle and Directed Reading Program, respectively. One student explores mathematical formulation of the "figure-eight phenomenon" in astronomy. The other student studies stereographic projections and Mobius transformations.### Notes

Last updated on May 10, 2022