TUMC Logo

Twenty-First Annual Texas Undergraduate Mathematics Conference

November 6-7, 2026
Stephen F. Austin State University

Twenty times in the past, undergraduate students have gathered in Huntsville, Tyler, San Antonio, Beaumont, Austin, Nacogdoches and "the cloud" to talk about math, play games, and network with students and faculty from around the state of Texas. This year, we will return to Nacogdoches for the 21st anniversary of the TUMC!

TUMC will be November 6th and 7th hosted at Stephen F. Austin State University in Nacogdoches, TX.

On Friday evening, the events include a social event with food and math games from 6:30 PM until 8:30 PM. On Saturday, we will have two plenary talks, contributed students talks, the grad school fair, and panel discussions on topics relevant to undergraduate research in mathematics.



Map and Arrival


image of Stephen F. Austin State University campus map

The registration desk and most events will be at the Cole STEM Building (yellow star on the map). The best places to park will be lots 35 and 15, which are adjacent to Cole STEM Building. Some street parking is available on Clark St. nearer to the student center (lot 3). Overflow parking in avaialble at lot 14 (free near the Bush Mathematical Sciences Building, with a pay option via ParkMobile for the portion of the lot nearest Wilson Dr.) and the Baker Pattillo Student Center Garage (also for pay).

From the north on North St., you can turn left onto Griffith Blvd., right around the circle, and then turn left immediately after the STEM Building to reach the lots. From the south on North St., you can turn right on East Starr Ave. and then left on Clark St. or Raguet St. to reach the lots.

Invited talks will be at Kennedy Auditorium (red star on the map), and lunch will be at the new Pinewoods Dining Hall (green star) on the corner of East College St. and Wilson Dr.



Invited Speakers

Our invited speakers are Dr. Cornelia Van Cott from University of San Francisco and Dr. Victor Moll from Tulane University


image of speaker Dr. Cornelia Van Cott

Cornelia Van Cott is a professor of mathematics at the University of San Francisco. A native of Indiana, Cornelia earned her bachelor's degree in mathematics from Wheaton College and her PhD in mathematics from Indiana University. Most of Cornelia's research focuses on topology, specifically knots and surfaces in 3 and 4 dimensions. She also likes the challenge of working with undergraduate students on research projects unrelated to topology. Cornelia enjoys teaching courses throughout the math curriculum during the school year. In the summertime, she enjoys teaching courses on fun, non-standard math topics at MathPath, a national residential summer camp for middle schoolers who love mathematics.

image of speaker Dr. Victor Moll

Victor H. Moll was born in Santiago, Chile on Halloween 1956. His father was a doctor in a small mining town, Cabildo. He moved to Valparaiso, the main port city after his father early death. There he studied in a British school, where he learned the language and discovered his love for mathematics. After graduation from Universidad Santa Maria in 1978, he enrolled in graduate school at the Courant Institute in New York City. There he met his (future) wife Lisa Fauci, also a graduate student. In 1986 both moved to New Orleans for a job at Tulane University. The plan was to be there for a short time before going back to the northeast. We never moved from the Big Easy.

He has many mathematical interests, most of them concerning the question how to evaluate integrals and what does one learn from that? He specially enjoys working with students at all levels (undergraduate, graduate, colleagues, amateur and retired mathematicians). He is a strong believer in the unity of Mathematics.


Schedule


Friday, November 6, 2026

Time Event Location
5:30 - 7:30 pm Registration and Welcome Cole STEM Building Atrium
6:00 - 8:00 pm Pizza and Games Cole STEM Building Room 401/402

Saturday, November 7, 2026

Time Event Location
7:30am Registration and Welcome Cole STEM Building Atrium
8:30 - 10:05 am Contributed Presentations Cole STEM Building 201, 202, 206, 314, 318
10:15 - 10:30 am Welcome Remarks Kennedy Auditorium
10:30 - 11:20 am Keynote Address
Dr. Cornelia Van Cott
The Change-Making Problem
Kennedy Auditorium
11:30 am - 12:35 pm Lunch Pineywoods Dining Hall
12:45 - 1:35 pm Keynote Address
Dr. Victor Moll
Integral Tales: Some Unexpected Connections
Kennedy Auditorium
1:40 - 2:30 pm Panel Discussions and Graduate Fair Cole STEM Building Atrium, 201, 202, 206
2:40 - 4:15 pm Contributed Presentations Cole STEM Building 201, 202, 206, 314, 318
Texas NExT activities will be held in Cole STEM Building Room 401/402.

Schedule of Talks and Panel Discussions


  • Kennedy Auditorium
  • (10:30-11:20am)

    Dr. Cornelia Van Cott, University of San Francisco

    The Change-Making Problem

    Abstract: When cashiers give us change, we prefer to receive it in as few bills and coins as possible. In the United States, cashiers get this done using the so-called greedy algorithm. But will the greedy algorithm work with a different coin system? This leads to a question in discrete mathematics called the change-making problem. Over the last 50 years, mathematicians have laid the groundwork for understanding this problem, but lots of opportunities for new investigation remain.

  • (12:45-1:35pm)

    Dr. Victor Moll, Tulane University

    Integral Tales: Some Unexpected Connections

    Abstract: During the process of learning Calculus one observes that there is a well-defined list of rules to compute derivatives: product, quotient and chain rules are among the first taught in every class. On the other hand, when one tries to compute integrals, the student is left with a feeling that now there is simply a collection of tricks. There is no clear reason of why one can integrate \(e^{x}\) is a simple manner, but the integral of \(e^{x^{2}}\) is more complicated. One learns these tricks from the instructor, by talking to older classmates or by searching for them online. At the end, there seems to be no systematic way of doing this.

    It is remarkable that, in the search of producing closed-forms of definite integrals, one finds many interesting connections with apparently disjoint parts of mathematics. Examples will include (1) properties of a collection of positive integers appearing in the evaluation of a rational functions, (2) a planar dynamical system connected with a variation of the arithmetic-geometric mean and (3) a list of definite integrals involving the gamma function.

    The lecture will be suitable for undergraduates and it will include stories about how the speaker got involved in such projects.


Each panel session will run twice - once from 1:40-2:00pm and then from 2:05-1:25pm, so that participants can attend multiple panels.

  • Cole STEM 201
  • Graduate School: Master's Programs
    • Dr. Colin Lawson, Stephen F. Austin State University
    • Mr. Ethan Hacker, Stephen F. Austin State University
    • Dr. Clint Richardson, Stephen F. Austin State University
  • Cole STEM 202
  • Graduate School: Doctoral Programs
    • Dr. Naomi Krawzik, Sam Houston State University
    • Dr. Md Istiaq Hossain, Stephen F. Austin State University
    • Dr. Joselyne Aniceto, St. Mary's University
  • Cole STEM 206
  • Research & Internship Opportunities
    • Dr. Cody Palmer, Stephen F. Austin State University
    • Dr. Kaitlin Hill, St. Mary's University
    • Dr. Cory Krause, LeTourneau University

abstracts for contributed talks (both sessions)

  • Cole STEM 201
  • (8:30-8:50am)
    Matthew Shank, LeTourneau University
    How to Not Use Zorn's Lemma
  • (8:55-9:15am)
    David Gray, LaTourneau University
    Affine Shapes and Generalized Weak Perspective Projections
  • (9:20-9:40am)
    Patrick Price, University of Texas at Austin
    Irreducible Representations of the Symmetric Group
  • (9:45-10:05am)
    Nathan Collins, Sam Houston State University
    An Exploration of Collisions with Central Elements of Pascal's Theorem

  • Cole STEM 202
  • (8:30-8:50am)
    Samantha Das, University of Texas at Austin
    An upper bound for the codegree graph, and triangle-free codegree graphs
  • (8:55-9:15am)
    Megan du Preez, University of Texas at Tyler
    Algebraic Structures on Sets of Partitions
  • (9:20-9:40am)
    Daniel Gallegos, University of Texas Rio Grande Valley
    Zeros of Eisenstein Series Generated by Jacobi Elliptic Functions
  • (9:45-10:05am)
    Victor Estrada & Siri Borchert, Texas Lutheran University
    Gerrymandering and the statespace of district plans

  • Cole STEM 206
  • (8:30-8:50am)
    Alejandra Favela Santos, St. Mary's University
    Invisible Forces, Visible Effects: Mathematical Modeling of Protein-DNA Electrostatics
  • (8:55-9:15am)
    April Castaneda, Tarrant County College District
    Finite Element Simulation of Triple-Negative Breast Cancer with Stochastic Dynamics 
  • (9:20-9:40am)
    Aldo Garza, Southwestern University
    Understanding and Exploring Sudoku Boards and Related Grids
  • (9:45-10:05am)
    William Thornell, Trinity University
    Cracking the Code: An Attempt to Measure Gerrymandering 

  • Cole STEM 314
  • (8:30-8:50am)
    Ioana Burlacu, Southwestern University
    Arithmetic Variations: Beyond the Triangle;
  • (8:55-9:15am)
    Hayden Pegues, Tarleton State University
    Propagation Time for Fault Tolerant Zero Forcing
  • (9:20-9:40am)
    Mary Crain, Tarleton State University
    Fault Tolerant Zero Forcing in Graph Operations
  • (9:45-10:05am)
    Tung Vo, University of St. Thomas
    Competitive Zero Forcing on Paths and Cycles

  • Cole STEM 318
  • (8:30-8:50am)
    Daniel Knight, Angelo State University
    Classifying Nearly All Graphs with Skew Zero Forcing Number of Zero
  • (8:55-9:15am)
    Carter Oxford, Angelo State University
    Skew Zero Forcing over Affine Geometry Suburbia
  • (9:20-9:40am)
    Kamaile Hernandez, Lamar University
    How Can Spectral Clustering Be Fair?
  • (9:45-10:05am)
    Ashlyn Cadena, Southwestern University
    The Picky Passenger Problem: A variation on parking functions


abstracts for contributed talks (both sessions)

  • Cole STEM 201
  • (2:40-3:00pm)
    Mikayla Hill, Stephen F. Austin State University
    Low-Degree Rational Maps that are Invariant Under Finite Group Symmetries
  • (3:05-3:25pm)
    Rocio Diaz, Texas Woman's University
    Solving Sudoku Puzzles Using Groebner Bases
  • (3:30-3:50pm)
    Ollie Watson, Texas Woman's University
    Fuchs Meets Fermat: A Tale of Two Open Problems
  • (3:55-4:15pm)
    Yujin Yoshimura, University of North Texas
    Extending Rock-Paper-Scissors Infinitely

  • Cole STEM 202
  • (2:40-3:00pm)
    Edward V. Leigh, Jr., Baylor University
    Matrix Representations of \(g\)-adic Numbers [\(M\)-adics], Modularity Lifting, and Affine Transforms
  • (3:05-3:25pm)
    Vanessa Medina, St. Mary's University
    Reciprocal Sums in t-Regular Partitions
  • (3:30-3:50pm)
    Jacqueline Sanchez & Abigail Schmidt, Sam Houston State University
    Manhattan Curves for One-Holed Tori
  • (3:55-4:15pm)
    Johnson Tran, University of Houston - Downtown
    Investigating Embodied Theatrical Approaches and Humor in Experiencing and Communicating Undergraduate Mathematics

  • Cole STEM 206
  • (2:40-3:00pm)

    Rogelio Tovar, Angelo State University
    Failed Vertex Covering Set Reconfiguration
  • (3:05-3:25pm)
    Khoi Nguyen, University of Texas at Austin
    Optical Implementation of the Deutsch-Jozsa Quantum Algorithm in A Mach-Zehnder Interferometer
  • (3:30-3:50pm)
    Luca Iovino, University of Texas at San Antonio
    On Hulls of Linear Codes
  • (3:55-4:15pm)
    Brent Morrison, Stephen F. Austin State University
    A Baseline Mathematical Model for Understanding Spotted Lanternfly Population Dynamics

  • Cole STEM 314
  • (2:40-3:00pm)
    Ricardo Balvanera & Amalia Garcia, University of Texas Rio Grande Valley
    A Comparative Study of Bayesian and Frequentist Nonparametric Hypothesis Testing Methods Using Real Data Applications
  • (3:05-3:25pm)
    Sahasra Jasti, University of Texas at Austin
    Analyzing DNA Co-Methylation Networks and Assessing Their Properties
  • (3:30-3:50pm)
    Anna Grogan, University of Texas at Austin
    Hierarchical Clustering For Forensic Data Analysis
  • (3:55-4:15pm)
    Jacqueline Rangel, Tarleton State University
    Assessing the Influence of Demographic, Clinical, and Lifestyle Factors on Stroke Risk

  • Cole STEM 318
  • (2:40-3:00pm)
    Robert Karcher, Southwestern University
    Perfect Card Shuffles and Return Times
  • (3:05-3:25pm)
    Sofia Valenzuela, Southwestern University
    Minesweeper: More Than Just Guessing
  • (3:30-3:50pm)
    Clay Elliott, Southwestern University
    Thermoelectric Modelling Explained With Chess
  • (3:55-4:15pm)
    Brooke Ramey, Southwestern University
    Growing Graphene: Graph Growth and Spectral Structure in Finite Hexagonal Lattices


Registration and Abstract Submission

Registration and abstract submission are now closed. Please contact Dr. Nick Long for any inquiries about late registration or abstract submission.

Registration costs:

  • $5 per student
  • $50 per faculty member
  • $30 for a table at the graduate school fair on the afternoon of the 7th.

Registration costs can be paid by mailing a check, paying online at this link, or paying with either cash or check at check-in for the conference.


Hotel Information

We will be using three hotels on the south side of Nacogdoches: