LEO HERR ↓

About Me

I'm a math postdoc at the Universiteit Leiden with David Holmes studying algebraic geometry, especially log geometry, Gromov-Witten theory, intersection theory, deformation theory, and number theory.

My CV: Curriculum Vitae

Papers

Collaborators

Teaching

If you're a student, our class materials are on canvas. Don't hesitate to contact me with any questions, either through email or the anonymous google form on canvas. There's no such thing as a stupid question!

I made a linear algebra review website with problems to help students practice. I'm passionate about teaching and believe the best way for students to master material is to do lots of practice problems, ideally with friends and classmates. The site also provides latex for instructors who would like to use it to write problems. It's under construction. Please contact me if you have feedback about the site.

I have years of experience teaching and designing courses for all levels of math. I've taught Calculus 1, 2, and 3, Introduction to Number theory, Modern Algebra 2 (Rings, Modules, Fields), Linear Algebra, and more. For details, see my Curriculum Vitae.

If you would like me to write you a recommendation letter, please contact me at least a month in advance of the deadline. We can determine whether I would be a good fit for a recommendation letter. I will need you to fill out this form (adapted from Dhruv Ranganathan) and email me:

  • CV
  • Undergraduate Students: transcript (an unofficial one is perfectly fine)
  • Undergraduate Students: a list of your mathematics classes and a short description of the classes themselves (i.e. don't make me look up what Math 380 at your university is, just tell me you took abstract algebra)
  • Research statement.
  • copies of any papers or theses you have written, or working links.

Student Review Projects

Some students I had the privilege of working with made excellent summary projects for algebra-related topics. They may serve as gentle undergraduate-friendly introductions to topics of interest.

Beware typos/errors.

Math Kids

I'm passionate about math outreach, especially to high school and college students, underrepresented minorities and gender identities, socio-economically disadvantaged people, and anyone enthusiastic about math. This passion led me to invent and run an extracurricular ``Math Kids'' program, teaching high school and undergraduate students from all walks of life advanced graduate math on an informal, weekly basis from 2015-2018. I recruited some students through the Boulder Valley School District Mentor Program.

Topics: Topology, Algebra, Differential Geometry, Algebraic Geometry, Category Theory, and some Analysis.

Alumni include: William Warfield, Sean Riedel, Sam McCrosson, Jesse Franklin, Ryan Mike, Poramate "Pao" Nakkirt, Zach Fox, James Stephan, ...

Contact Me