Thomas St. George. Carroll University faculty

Dr. Thomas St. George

Associate Professor of Mathematics 262.524.7142 Mathematics House 100




Prior to arriving at Carroll University in the Fall of 2014, Dr. St. George received his masters in mathematical sciences from the University of West Florida in Spring of 2009, interned as an applied mathematician in the Power Systems division at UTC Aerospace systems in the Summer of 2012, received his doctorate in mathematical sciences at Northern Illinois University as well as obtained a one year visiting professorship at St. Olaf College in the Fall of 2013. Since joining Carroll’s faculty, he has taught a wide variety of applied mathematics and actuarial courses at Carroll as well as mentored student research. In his free time, Dr. St. George enjoys spending time with his family at their cottage in northern Wisconsin, fly fishing, and downhill skiing.


  • Northern Illinois University, PhD in Mathematical Sciences, 2013 
  • University of West Florida, MS in Mathematical Sciences, 2009 
  • Monmouth College, BA in Mathematics, 2007 

Areas of Specialization

  • Ordinary Differential Equations
  • Sturm-Liouville Theory
  • Time Scales Calculus
  • Numerical Methods for Ordinary Differential Equations
  • Mathematical Statistics
  • Actuarial Science 

Scholarly and Professional Achievements

Selected Publications 

  • “A strategy for Teaching Health Literacy to Physician Assistant Students”, HLRP: Health Literacy Research and Practice, 5:1, 01, 2021. (with B. Ruggeri, A. Vega, M. Liveris, J. Hopp). 
  • “Linear Sturm-Liouville Problems with Riemann-Stieltjes Integral Boundary Conditions,” Opuscula Mathematica, vol. 38, no. 4 (2018) (with Q. Kong) 
  • “Linear Sturm-Liouville Problems with General Homogeneous Linear Multi-point Boundary Conditions,” Math. Nachr. (2016), 1-12. (with Q. Kong)
  • “Matching Method for Nodal Solutions of Boundary Value Problems with Integral Boundary Conditions”, Communications in Applied Analysis, 19 (2015): 129-148. (with Q. Kong) 
  • “Matching method for nodal solutions of multi-point boundary value problems,” Differ. Equ. Appl., 5 (2013): 13-31. (with Q. Kong) 

Selected Presentations 

  • “Matching Method for Nodal Solutions of Boundary Value Problems with Riemann-Stieltjes Integral Boundary Conditions,” AMS Special Session on Advances and Applications in Integral and Differential Equations, I, JMM Boston, MA, Jan. 7, 2023
  • “Linear Sturm-Liouville Problems with Riemann-Stieltjes Integral Boundary Conditions,” AMS Special Session on Advances and Applications in Integral and Differential Equations, I JMM Baltimore, MD, Jan. 19, 2019 
  • “Matching Method for Nodal Solutions of Boundary Value Problems With Integral Boundary Conditions,” MSCS Research Seminar, St. Olaf College, April 17, 2015 

Service to Carroll University and Profession

  • Chair, Academic Steering Committee, 2020–2021 
  • Member of Academic Steering Committee, 2018–2021 
  • Member of Davies-Otto Scholarship Committee, 2016–2022 
  • ETS AP Reader for AP Calculus AB/BC Exams, 2018–Present 

What is your teaching style?

Dr. St. George’s teaching style involves both lecture-based and active learning. He believe it is important to give the students a chance to work hands-on with mathematics in an environment where they can get their questions answered in a timely manner. This typically involves group work, in-class discussions, and computer-related projects. 

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