# Chris Tiee

Researcher working with Michael Holst at CCoM

Donut Meister
Email: ctiee@ccom.ucsd.edu

Office: AP&M 5121

### Research

My research interests lie at the intersection of analysis, geometry, partial differential equations, and their computational aspects. Lately, I have been looking at the finite element exterior calculus (FEEC), working with Hilbert complexes in general, and the general nature of boundary value problems. I successfully defended my PhD on 6/4/2015; the thesis is available here, with supplemental files here. An extended version of my PhD thesis with supplementary notes is available here. Or buy the bound version at Lulu.com.

### Recent Talks

**PhD Defense: Applications of Finite Element Exterior Calculus to Evolution Problems**

My PhD defense, given 6/4/2015.
**Finite Element Exterior Calculus for Evolution Equations in Hilbert Complexes**

Given at the CCoM Seminar, 2/10/2015

Also download the version with movies.

**Finite Element Exterior Calculus for Geometric Problems**

Given at the CCoM Seminar, 3/11/2014

Also download the version with movies (it'll download separately as a zip file rather than show up in your browser, though; they'll also only play in Adobe Reader).

### Teaching

#### Spring 2016

Math 10C

#### Winter 2016

Math 170A

#### Fall 2015

Math 10B, Lecture B

Math 20D, Lecture D

### Publications

M. Holst and C. Tiee, *Finite Element Exterior Calculus for Parabolic Evolution Problems on Riemannian Hypersurfaces.* Submitted for publication.
Available as arXiv:math.NA/1509.05524

### Notes

Notes on Tensor Analysis

Notes attempting to demystify some of the vagaries of tensor analysis. Many issues raised in that document have since been resolved; updates forthcoming. In the meantime, a more concise version of this is included in Chapter 1 of the extended version of my thesis.
Match this Pasta to these
Parametrizations. (Answer key here)

Why gradient vector fields have no curl

This phenomenon occurs in more general versions quite routinely in my research. Also, the proof that your parents lied to you when they said when they were your age, they had to walk to school uphill both ways.

### Links

Center for Computational Mathematics (CCoM)
My visualization blog, Nested Tori