L·E·Santori

Mathematics · Purdue University

Luis E.
Santori

First-year doctoral student in mathematics — interested in the regularity theory of nonlinear elliptic equations, with a continuing curiosity for planetary surfaces and the combinatorics of graphs.

I am a first-year Ph.D. student in the Department of Mathematics at Purdue University, having completed my B.S. in Mathematics with a minor in Physics at the University of Central Florida in the spring of 2025. My work sits at the intersection of analysis and geometry — at the moment, on questions of regularity: when, and how smoothly, do solutions of variational problems exist?

For my undergraduate honors thesis, supervised by Eduardo Teixeira, I wrote a self-contained exposition of Hilbert's 19th problem, developing De Giorgi's iteration scheme and the local Hölder continuity of weak solutions to elliptic equations in divergence form. That circle of ideas — the variational origin of an equation, the geometry of its level sets, the moduli by which it regularizes — is where I expect to spend the next several years.

Outside of analysis, I have been a long-running undergraduate research assistant in planetary science at UCF, studying the photometric properties of anorthositic exposures on the lunar surface, and I have worked on the combinatorial side of DNA self-assembly through the Summer@ICERM program at Brown. A few of those projects continue.

Selected Work

Analysis

On Hilbert's 19th problem and De Giorgi's theorem

A self-contained development of the regularity theory of minimizers of elliptic functionals, culminating in local Hölder continuity for weak solutions to divergence-form equations.

Undergraduate honors thesis · advised by E. Teixeira · 2023–2025

Planetary

Photometry of pure anorthosite exposures on the Moon

Photometric analysis of mature and immature lunar craters using LRO Narrow Angle Camera imagery and Moon Mineralogy Mapper data. Pipeline development, digital terrain models, and Christiansen-feature maps.

Donaldson-Hanna group, UCF · 2021–2025

Combinatorics

Optimal constructions in the flexible-tile model of DNA self-assembly

Cataloguing optimal constructions for graphs of small order across scenarios one through three, and extending the analysis to stacked-prism, hexagonal-lattice, and web graphs.

Summer@ICERM, Brown University · 2023–

Contact