Faculty and Staff

Mathematics Faculty and Staff

Michelle Armstrong

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I grew up in Troy, Alabama and I am a proud alumnus of Troy University, having earned a B.S. in Mathematics and M.S.Ed. in Mathematics Education.  I have taught adjunct for Troy University since 2003, both in the classroom and online.  After teaching math for 22 years at the high school level, I returned to my alma mater in the fall of 2017 as a full-time Lecturer in the Department of Mathematics.  I am proud to be a lifelong Trojan and to call Troy University my home.


Dr. Sergey Belyi
Professor and Associate Chair

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Dr. Belyi received his PhD from the University of South Florida. His research lies in the fields of operator theory, functional analysis, and system theory. His current research project has applications in mathematical physics as well.


Abigail Carter

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I grew up in Andalusia, Alabama and received both my bachelor's degree and my master's degree from Troy University.  I have been teaching math for almost twenty years, but my years at Troy have been by far my favorite.  I started at Troy as an adjunct instructor in the fall of 2009 and became a full-time lecturer in the fall of 2014.  I primarily teach the math concepts courses for elementary education majors.  I am passionate about teaching, I love my students, and I am proud to be Troy Trojan!


Rebecca Connell
Part-Time Lecturer

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I grew up in Brundidge, Alabama and graduated from Pike County High School.  I have a Bachelor of Science and a Master's of Science Degree, both in Comprehensive Mathematics Education from Troy University and 16 years of experience teaching math.  I have taught Beginning Algebra, Intermediate Algebra, Pre-Calculus Algebra and Finite Math at Troy University. Presently, I am teaching Intermediate Algebra for TROY Online and Pre-Calculus Algebra and Finite Math in the classroom. I love to teach math and enjoy working with students.


Dr. Hoa Dinh
Assistant Professor

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Dr. Dinh received his PhD from Kazan Federal University (Russia) in 2010. He worked on trace and operator inequalities on von Neumann algebras and C*-algebras. Currently, his research focuses on topics of matrix theory, operator theory, functional analysis and applications. He works on the topic of inequalities involving matrices, trace, matrix functions, matrix means etc. and their applications in quantum information theory. His other mathematical interests include the quantum information theory, non-commutative algebraic geometry and matrix optimization.


Wendy Easterling

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I have a Bachelor's in Mathematics and a Master's in Mathematics Education both from Troy University. I became full time at the Troy campus in the fall of 2010 and teach general studies mathematics courses. Prior to moving to Troy, I taught junior high/high school mathematics in Autauga and Elmore counties while also teaching adjunct courses at Troy Montgomery and Faulkner University.


Dr. Reiff Lafleur
Associate Professor

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I earned my M.S. in Mathematics at the University of Rhode Island in 1986.  I earned my Ph.D. in Mathematics at the University of Connecticut in 1997.  I do not have a B.S.  When I was at the University of Rhode Island they had a program for early admission to graduate school.  You could be admitted if you had "an outstanding record based on grades, recommendations and Graduate Record Exam (standardized test) scores".  If there was one thing I was always good at it was standardized tests.  I did well enough that I was accepted for early admission to graduate school, without getting a Bachelor's Degree.  My thesis was in Abstract Algebra.  I love Abstract Algebra.  But I like to think of myself as a jack of all trades.  I like to look at a variety of different types of math and science.  In my job at Troy University Dothan Campus, I get to teach a wide variety of classes, which I enjoy.  In addition to my mathematics classes, the University of Alabama has a distance program in Mechanical Engineering.  I was a Mechanical Engineering major many years ago for one year.  I took Statics, Dynamics, and Strength of Materials.  I enjoy helping engineering students with their coursework, in spite of the fact that I have not taken these classes.  The classes are mainly applied Physics and Math.  I also enjoy helping students study for the Praxis test in Mathematics.  I enjoy trying to figure things out.  I enjoy doing problems.


Dr. Nick Newman
Assistant Professor

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Nick Newman is a graduate of Troy University. He went on to receive his M.A.M. and Ph.D. from Auburn University in Discrete Mathematics. His primary research interests are in graph decompositions.


Diane Porter
Associate Professor Emeritus

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After graduating from Troy University's Mathematics Education undergraduate and graduate programs, I have been teaching at TROY for over thirty years.    Needless to say, I teach because I enjoy it and I love being at TROY!   My area of specialization is Mathematics Education.   I currently serve on the Executive Board of Troy-Alabama Mathematics, Science, and Technology Initiative, AMSTI, and also serve as the Secretary of the Association of Mathematics Teacher Educators of Alabama, AMTEA.  I am a member of the Alabama Council of Teachers of Mathematics and the National Council of Teacher of Mathematics. 


Dr. Ken Roblee
Professor and Chair

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I received degrees from the University of Alabama (B.S.) and Auburn University (M.S., Ph.D.).  My primary research area is Graph Theory.  I enjoy mentoring student research projects, and advising our Mathematics Club and chapter of the national mathematics honor society. I primarily teach mathematics major and minor courses.


Dr. Pat Rossi

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I received my PhD from Auburn University, where my research was in the area of Homological Algebra. Currently, I teach the Calculus sequence, Calculus and its Applications, Computer Programming for Mathematics, Introduction to Advanced Mathematics, Linear Algebra, Numerical Analysis, the Real Analysis sequence, Number Theory, and History of Mathematics. In the past, I have also taught Differential Equations, Complex Analysis, the Mathematical Statistics sequence, Vector Calculus and Abstract Algebra; as well as all of the "core courses" in the undergraduate Electrical Engineering curriculum.

My current interests consist of perfecting my mathematical pedagogy and mentoring students in their research.


Mrs. Lillis Sullivan
Department Secretary


Dr. Robert Vilardi


Dr. Vitaly Voloshin
Wallace D. Malone, Jr. Distinguished Faculty

additional information

Dr. Voloshin worked at Moldova State University and at the Institute of Mathematics and Informatics of the Moldovan Academy of Sciences (Republic of Moldova, former Soviet Union) for many years, and moved to the United States in 2002. His research areas include graph and hypergraph coloring, theory, algorithms and applications.  In 1993, he originated the direction of mixed hypergraph coloring, and there are now more than 200 scientific publications on the subject, including the author's Fields Institute Monograph. His research has been repeatedly supported by many scientific foundations of Italy, Germany, Canada, China, the United States, and other countries. He was the invited speaker of many major international conferences, held visiting positions at many universities throughout the world, and supervised and was consulted on many MS and PhD theses.


Dr. Danush Wijekularathna
Assistant Professor

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I received a B.S. degree from the University of Peradeniya of Mathematics in Sri Lanka, an M.S. in Statistics from Sam Houston State University, and a Ph.D. from Texas Tech University. My research interests include Nonparametric Statistical Inference, Biostatistics, Experimental Design, Linear Models, Generalized Linear Models, Repeated Measures and Mixed Effects Models. I currently teach statistics and mathematics courses.


Barbara Wolfe

additional information

I received a Master's Degree in Mathematics from Samford University in Birmingham, Alabama, and did Post-Graduate work at Auburn University. I have over 30 years of teaching experience, and have enjoyed teaching at Troy University since 2005.


Dr. Huijun Yi
Assistant Professor

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I earned my Ph.D. from Southern Illinois University Carbondale in 2014. I am working in the area of categorical data analysis under some type of constraints. I am also interested in regression models, multivariate statistical inference and Bayesian analysis.



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Dr. Vitaly Voloshin, Professor of Mathematics and recipient of the Troy University 2018 Wallace D. Malone, Jr. Distinguished Faculty Award, leading the processional at TROY's 2018 fall commencement.