Chenglong Yu

I am a Hans Rademacher Instructor of Mathematics at University of Pennsylvania.

My research is in algebraic geometry and differential geometry. I am interested in the geometry and arithmetic properties of Calabi-Yau varieties, especially the differential systems arising from Calabi-Yau families. I am also interested in moduli of K3 surfaces and cubic fourfolds.

Office: DRL 3N8A
Email: yucl18 {at}


  1. Moduli of Singular Sextic Curves via Periods of K3 Surfaces. (with Zhiwei Zheng)
  2. Moduli Spaces of Symmetric Cubic Fourfolds and Locally Symmetric Varieties. (with Zhiwei Zheng)
  3. Jacobian rings for homogenous vector bundles and applications. (with An Huang, Bong Lian, Shing-Tung Yau)
  4. Period integrals of local complete intersections and tautological systems. (with An Huang, Bong Lian, Shing-Tung Yau)
  5. Hasse-Witt matrices, unit roots and period integrals. (with An Huang, Bong Lian, Shing-Tung Yau)

Teaching at Penn

Spring 2020: Math 240

Spr. 2020: Math 371 Algebra

Fall 2019: Math 241

Spr. 2019: Math 371 Algebra

Spr. 2019: Math 114 Multivariable Calculus

Fa. 2018: Math 114 Multivariable Calculus

Teaching at Harvard

Spr. 2018: Math 213br Riemann Surfaces(CA)

Fa. 2017: Math 21a Multivariable Calculus

Fa. 2016: Math 21a Multivariable Calculus

Fa. 2015: Math 21a Multivariable Calculus

Spr. 2015: Math 213br Advanced Complex Analysis(CA)

Fa. 2014: Math 21a Multivariable Calculus (Coach)

Other links

Yau student seminar

Zhiwei Zheng's Homepage