Mathematician · Educator · Academic Leader

Quinn A. Morris, Ph.D.

Associate Professor & Graduate Program Director
Department of Mathematical Sciences
Appalachian State University

Quinn A. Morris, Ph.D.

Dr. Quinn A. Morris is an associate professor in the Department of Mathematical Sciences at Appalachian State University, where his research focuses on nonlinear partial differential equations. He serves as Graduate Program Director of the MA in Mathematics Program and as an affiliate faculty member in the Math & Science Education Center at Appalachian State.

As graduate program director, Dr. Morris has overseen enrollment growth in online programs, through transitioning core coursework from synchronous to asynchronous classes, creating graduate certificate programs to meet student and workforce needs on an accelerated timeline, and the addition of graduate level online coursework outside the typical fall/spring semester meeting patterns. Additionally, Dr. Morris has personally developed several online asynchronous courses in analysis, including "Intensive Analysis Prep," a one-credit hour course intended to provide students returning to the classroom after an extended break a refresher in mathematical logic, proof writing, and real analysis before jumping into the graduate analysis sequence.

Nonlinear Differential Equations

Semipositone Problems

Existence, uniqueness, and multiplicity of solutions for superlinear semipositone problems on exterior domains, with and without nonlinear boundary conditions.

Elliptic PDEs

Qualitative behavior of solutions to nonlinear elliptic equations. Fučík spectra with weights, variational methods, and nonlinear boundary conditions.

Mathematical Biology

Reaction-diffusion models for habitat dynamics with density-dependent dispersal on the boundary, including single-species and competing-species systems.

Selected Publications

  • N. Mavinga, Q. Morris, S. Robinson
    Fučík Spectrum with weights and existence of solutions for nonlinear elliptic equations with nonlinear boundary conditions.
    Electronic Journal of Differential Equations, 2022
  • T. Lewis, Q. Morris, Y. Zhang
    Convergence, stability analysis, and solvers for approximating sublinear positone and semipositone boundary value problems using finite difference methods.
    Journal of Computational and Applied Mathematics, 2022
  • Q. Morris, J. Nash, C. Payne
    Analysis of steady state for classes of reaction-diffusion equations with hump-shaped density dependent dispersal on the boundary.
    Involve, 2020
Full publication list on Google Scholar →

In the News

Dr. Morris is passionate about making mathematics accessible and relevant to general audiences. He has appeared on local and regional television and news media to discuss the beauty, history, and cultural significance of mathematics — and is available to speak with journalists, podcasters, and producers seeking an engaging academic voice on mathematics, STEM education, and the future of higher education.

Available to speak on

Popular Mathematics Mathematical Modeling Mathematics Education Graduate & Online Learning Making Math Accessible STEM in Higher Education History of Mathematics

Media Inquiries

For interview requests, expert commentary, or speaking appearances, reach out directly by email. Dr. Morris is available for television, radio, podcast, and print media.

Get in Touch

Get in Touch

Phone
(828) 262-2365
Office
Department of Mathematical Sciences
121 Bodenheimer Drive, ASU Box 32092
Boone, NC 28608
Department
Department of Mathematical Sciences
Appalachian State University