Mathematics

PhD program - Mathematics

Beginning Fall 2025

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@TXST Math

Location:
DERR 338
Cost:
Free
Contact:
Tim Chase tmc113@txstate.edu
Cameron Farnsworth clf129@txstate.edu
Campus Sponsor:
Department of Mathematics
Love a good problem?  Like to solve difficult puzzles?
Join professors, graduate students and undergraduates as we tackle problems presented from several mathematical journals.  An interest in higher level mathematics is all that is required to join our round table.  Offer what you know, learn what you don't in a relaxed environment with some of our department's finest!
Location:
Trauth-Huffman Hall 206
Cost:
Free
Contact:
anton.dochtermann@gmail.com
Campus Sponsor:
Department of Mathematics
In this talk, we explore some algebraic invariants of binomial edge ideals of crown graphs. We will first discuss some basic results on binomial edge ideals and then investigate the class of graphs for which the projective dimension of the quotient of the binomial edge ideals matches the big height of that ideal. This is joint work with Arvind Kumar and Joshua Pomeroy. Click here for more information
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Location:
ELA 229
Cost:
Free
Contact:
Will Boney - wb1011@txstate.edu
Campus Sponsor:
NSF - Department of Mathematics
Curious about foundational mathematics?  Interested in the intersection of math and philosophy?  Have questions about infinity, proofs, or the nature of truth? Click here for more information
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Location:
Derrick 333
Cost:
Free
Contact:
vi11@txstate.edu
Campus Sponsor:
Department of Mathematics
Join Thomas Maierhofer from the UCLA Department of Statistics & Data Science to explore ALISSTAIR — an AI-powered teaching aid designed to support students in statistical learning. ALISSTAIR, a custom chatbot powered by open AI's GPT technology, offers real-time help with lecture content, homework, practice problems, and R programming. In this talk, you’ll learn about the journey of creating ALISSTAIR and its application in the classroom. You’ll also discover how to build your own AI-powered teaching aid in just 10 minutes using a no-code graphical user interface, making it accessible to anyone without programming experience. Whether you're interested in how AI can enhance your teaching or just curious about ALISSTAIR’s future, this talk will provide valuable insights.

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Meeting ID 863 7686 1836                  Passcode SS_DERR333

https://txstate.zoom.us/j/86376861836?pwd=MuhOetE19T5FEcaby8gqQ3TlZD6PZa.1

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Location:
Derrick 235
Cost:
Free
Contact:
hhardison@txstate.edu
Campus Sponsor:
Department of Mathematics
Recently, self-characterized novice researchers have made calls for mathematics education researchers to be more explicit in how theories and associated constructs have come to shape their research programs. They appropriately argue that such insights not only help less experienced researchers understand and use those theories and constructs, but also aid them in building an image of the practices involved in sustaining a research program. In this seminar talk, I discuss how re-presentation (and other associated constructs) came to be an informing theory for building second-order models of students’ quantitative reasoning. I trace through the genesis of its relationship with my research program—Dr. Irma Stevens’s dissertation research—and I illustrate several applications of it as it relates to empirical data and task design. Click here for more information
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Location:
Derrick 325 and Zoom
Cost:
Free
Contact:
ojeda@txstate.edu
Campus Sponsor:
Department of Mathematics

Speaker: Professor Jennifer K. Ryan, KTH Royal Institute of Technology, Division Head of Numerical Analysis, Optimization, and Systems Theory at the Department of Mathematics

Filtering is an important tool to aid in reducing non-physical oscillations, errors, and the amount of data necessary for accurate simulations.   Further, the ability to utilize filtering can allow for interaction between processes that occur at different scales.  However, filtering for solutions containing sharp gradients can be particularly challenging. Advances in filtering for sharp-gradients, including utilizing non-symmetric filtering, has become increasingly necessary in order to understand the detailed physics in applications such as hypersonics. In this talk, we review the necessary properties for effective filters and the difficulties in constructing useful filters for sharp gradients.  As a basis for discussion, we utilize the Smoothness-Increasing Accuracy-Conserving (SIAC) filtering framework, which inherently takes advantage of the underlying physics and allows for the full resolution of the approximation and its derivatives in both the physical domain and Fourier signal space.

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Location:
Derrick 329
Cost:
Free
Contact:
pcd27@txstate.edu
Campus Sponsor:
Department of Mathematics
Special Guest Kevin Moore, University of Georgia

Quantitative reasoning’s emergence as a foundation for students’ mathematical development has generated a need for supporting teachers’ capacity to teach for such reasoning. Complicating the matter, teachers’ extant meanings can be incompatible with or create obstacles in their reasoning quantitatively. In this talk, I discuss a meanings perspective on working with prospective and practicing teachers in order to honor their extant meanings while supporting their constructing meanings that foreground quantitative reasoning. This meanings perspective, referred to as competing meanings, involves a problematization of extant meanings, the construction of alternative meanings, and a critical comparison of each. I present the competing meanings perspective and informing theories, and I draw on my research team's empirical work to provide tangible and research-based examples of the competing meanings perspective.
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Location:
DERR 338
Cost:
Free
Contact:
Tim Chase tmc113@txstate.edu
Cameron Farnsworth clf129@txstate.edu
Campus Sponsor:
Department of Mathematics
Love a good problem?  Like to solve difficult puzzles?
Join professors, graduate students and undergraduates as we tackle problems presented from several mathematical journals.  An interest in higher level mathematics is all that is required to join our round table.  Offer what you know, learn what you don't in a relaxed environment with some of our department's finest!