Mathematics Faculty
Women faculty across the College of Science and Engineering are doing exciting research..........
Department of Mathematics  Faculty Research

Susan Morey, PhD
http://www.math.txstate.edu/about/people/faculty/morey.html
Research Interests
Commutative Algebra
Properties of powers of ideals, including associated primes and depths. In particular, recent work has been focused on monomial ideals, which are then represented as graphs, simplicial complexes, or matrices (often unimodular) depending on the situation. Algebraic questions are then answered using these structures.

Weihzen (Diana) Gu, PhD
http://www.math.txstate.edu/about/people/faculty/guw.html
Research Interests
Graph theory, network designs, facility location on networks, and some distance problems. Recently, she has been working on permutation graphs, domination in graphs, and eccentric digraphs.

Maria (Teo) Acosta, PhD
http://www.math.txstate.edu/about/people/faculty/acosta.html
Research Interests
Dr. Acosta's research deals with equations and polynomials with special properties over finite fields. She has worked on the characterization of polynomials in two variables with minimal value set, matrix equations of the form X^{n}=B, and other related problems.

Jessica Bishop, PhD
http://www.math.txstate.edu/about/people/faculty/bishop.html
Research Interests
Dr. Bishop’s research interests are in two main areas: research on mathematics classroom discourse and research investigating children's mathematical thinking. She uses both qualitative and quantitative approaches to identify patterns in teacherstudent and studentstudent discourse to better understand how discourse influences mathematics learning and the development of positive mathematics identities. She is currently working on an NSF CAREER grant focused on middle grades mathematics discourse and recently finished an NSF grant exploring K12 students' conceptions of integers.

Daniela Ferrero, PhD
http://www.math.txstate.edu/about/people/faculty/ferrero.html
Research Interests
Graph theory and its applications

M. Alejandra Sorto, PhD
http://www.math.txstate.edu/about/people/faculty/acosta.html
Research Interests
Dr. Sorto's research focuses on the preparation of teachers in the area of Statistics, the impact of professional development, and comparative studies in LatinAmerica and Africa. In particular, she is interested in developing instruments to measure content knowledge for teaching, teaching quality and analyzing its effect on student achievement. The National Science Foundation (NSF) recently awarded her a CAREER research grant to investigate the Mathematics instruction of English language learners in the state of Texas.

Sharon Strickland, PhD
http://www.math.txstate.edu/about/people/faculty/strickland.html
Research Interests
Dr. Strickland's current research focuses on the role of discourse in classrooms, particularly how teachers respond to students' mathematical thinking. Other areas of interest include preparing future teachers, mathematics majors learning to prove as they transition to upper level coursework, as well as everyone learning more geometry.

Shuying Sun, PhD
http://www.math.txstate.edu/about/people/faculty/sun.html
Research Interests
Dr. Sun has interests in statistical genetics and bioinformatics and has published more than 20 peerreviewed research articles in highimpact journals. Dr. Sun's research focuses on addressing challenging genetic and epigenetic questions using statistical and computational methods. She has collaborated with biomedical researchers from different research groups in Canada and the United States on projects related to complex diseases (e.g., cancer and arthritis). She has also been developing statistical methodologies and software packages for genomic problems using Bayesian methods, hidden Markov models, Markov Chain Monte Carlo algorithms, and linear models.

Jennifer Czocher, PhD
http://www.math.txstate.edu/about/people/faculty/czocher.html
Research Interests
Her research interests include students’ mathematical thinking and cognition, research in undergraduate mathematics education (RUME), the impact of mathematical modeling tasks on students’ mathematical thinking, and how mathematical reasoning supports STEM education. She is currently studying how individuals learn to use mathematics as a representational system and the role teacher questioning may have in helping individuals coordinate their mathematical and nonmathematical knowledge.

Hwa Young Lee, PhD
http://www.math.txstate.edu/about/people/faculty/lee_h.html
Research Interests
Mathematics education—Students’ mathematical thinking; students’ constructions and use of coordinate systems; students’ spatial, algebraic, quantitative and covariational reasoning; preservice secondary mathematics teacher education

Kristen Lew, PhD

Kate Melhuish, PhD
http://www.math.txstate.edu/about/people/faculty/melhuish.html
Research Interests
Her research interests focus on two primary areas: student understanding and activity in advanced mathematics, and supporting teachers in promoting highlevel reasoning in their classrooms. Dr. Melhuish is currently coPI on a DRK12 grant looking at the efficacy of a sustained PD model at the 3rd5th grade level. Her secondary project is the development of models of student thinking in abstract algebra and design and maintenance of the Group Theory Concept Assessment, a measure meant to reflect student thinking in this area.

Hiroko Warshauer, PhD
http://www.math.txstate.edu/about/people/faculty/warshauerh.html
Research Interests
Her research interests include areas of teaching and learning that foster productive struggle and investigation of professional teacher noticing of student thinking at preservice and inservice levels. She is coauthor of the Math Explorations curriculum, a Texas Mathworks middle school textbook series state adopted in Texas and the Mathworks Junior Summer Math Camp curriculum. She provides professional development to support curriculum implementation. She is the Mathworks research coordinator, overseeing Mathworks related research about summer math camps, teacher training, curriculum, and classroom interactions with faculty and doctoral students in mathematics and mathematics education.