College of Natural & Agricultural Sciences


Meet Our Current Math Grads

2023-24 Math Grad Student Ambassadors

We invite you to learn more about our current Math Graduate Students! Our students are vibrant, collegial, supportive, collaborative, and wonderful human beings who have a strong passion for Math! 


chaoyang gao

Chaoyang Gao is a third year Ph.D. student in the Mathematics Department of UCR. He studies differential geometry with perspectives from algebraic geometry under Dr. Brian Collier. Outside of math, he enjoys spending time with his wife and two kids, board games, and snowboarding.
Chaoyang is an international student, and started in the masters program and transitioned into the Ph.D. program. Please feel free to email him at if you have any questions.

Chaoyang Gao


jialin wang

Jialin Wang, also goes by Jennifer (pronouns: she/her) is currently a fourth year PhD student working with Stefano Vidussi in the UCR mathematic department. Her research interests are Algebraic topology and low dimensional topology. Besides working: she live with two cats, enjoys spending time in gym/exercises/sports, playing video games. If you have any question or if there is anything I can help, feel free to contact me via email:

Jialin Wang

Khoi Vo is a third year PhD student in the Mathematics Department at UCR. Before coming to UCR, he received his BS in pure mathematics from UCLA and Master in pure mathematics from CSULB. He is currently working under a guidance of Dr. Mark Alber. His research involves application of mathematics into biology and stochastic systems, from modeling blood clot to cancer modeling. In his free time, he is the volunteer CEO of a local non-profit organization that helps the seniors, practice mediation and calmness, or simply spend valuable time with his family. Please feel free to reach out to him with any questions at

Khoi Vo


Zack Virgilio

Zach Virgilio is studying complex geometry as a 4th year PhD student at UCR.  In particular, guided by his advisor Dr. Brian Collier, his research focuses on Higgs bundles, Anosov representations and higher Teichmuller theory.  When his math is on pause, Zach prefers to be outside, in the gym or reading.  Outside he enjoys hiking, cycling, running and soccer.  He will read almost anything if the recommendation is convincing enough.  If you have any questions, please don’t hesitate to send me an email at, I will do my best to help.

Zach Virgilio


Tyler Pierce

Tyler Pierce is a sixth year Ph.D. candidate. He got his B.S. in Math from UC Davis and M.S. in Math from UCR. He is currently working with Vyjayanthi Chari and Jacob Greenstein in the UCR Mathematics Department. Along with his deep passion for teaching, his research interests are in representation theory of Lie algebras, specifically generalized Demazure modules. Outside of math, Tyler is an amateur cyclist, loves going to the gym, watching movies, playing with his dog, and getting tattoos. If you have any questions or want to know more about Tyler please email him at or visit his website Tyler Pierce (

Tyler Pierce


Rasha Issa

My name is Rasha Issa (pronouns: She/ Her). I am currently a third year PhD student in the mathematics department at UCR. I am a first-generation college student. I recently became more interested in applied math, in particular Math Bio. Outside of mathematics, I enjoy spending time with my two girls, outdoor activities, and boxing. I am excited to help give insight about the PhD math program at UCR. Please do not hesitate to email me with any questions. My email is

Rasha Issa

Contact Us

Graduate Student Services Supervisor

Margarita Roman


Phone: (951)-827-3090


Graduate Student Services Advisor

Kathryn Aquino


Phone: (951)-827-3127


Student Affairs Specialist

Randy Morgan


Phone: (951)-827-3114


Graduate Advisor, Recruitment

Dr. Zhenghe Zhang



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