Department of Mathematics

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Mathematics Faculty and Staff

Stephen Bricher - Professor

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Taylor 208

Education: Ph.D., Mathematics, University of Colorado at Boulder, 1991. B.A., Mathematics, Linfield College, 1986, Summa cum Laude.

Academic Interests: Dr. Bricher's research interests are in the area of nonlinear-partial differential equations, which can be used to model a myriad of physical phenomena. A few examples are: neuron activity, thermal combustion and flame propagation, the microstruture of metals, turbulence and weather patterns. He has published several papers on mathematical problems related to combustion, and has presented his work at national and international mathematics conferences. Dr. Bricher teaches a course in nonlinear differential equations and dynamical systems that prepares students to work with him on collaborative research projects. Projects in the past have culminated in student presentations at national mathematical meetings. He regularly teaches courses in calculus, analysis, differential equations, and probability and mathematical statistics. He advises physics theses and often helps science students with their mathematical questions. Dr. Bricher enjoys advising students that share an interest in mathematics.


Please contact Dr. Bricher for copies of his reprints.


Dr. Bricher is an avid road cyclist. During the summer he can often be found riding the roads of Yamhill County contemplating his research problems and cursing air resistance's velocity squared dependence.

Malek Daaboul - Visiting Assistant Professor

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Taylor 207

Education: BSEE, MSIE, MSEE, all from University of Toledo, Toledo Ohio.

Charles Dunn - Professor and Chair

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Taylor 210

Education: Ph.D., Mathematics, Arizona State University; M.S., Mathematics, University of Illinois at Urbana-Champaign; B.A., Mathematics & Music, Lewis & Clark College

Academic Interests: Dr. Dunn's research interests are in graph theory and combinatorics. In graph theory, he focuses on competitive graph coloring algortithms. In the summers of 2008, 2009 and 2012, he worked with Jennifer Nordstrom and 15 students through the NSF-funded Willamette Valley Consortium for Mathematics Research. Part of work centered on classifying trees and forests relative to their game chromatic number. The remainder of the projects concerned variations of the relaxed coloring game. In combinatorics, he recently collaborated and had a paper accepted on higher dimensional lattice chains and Delannoy numbers. During the summer of 2013, he worked with Mike Hitchman on problems concerning tilings and tiling invariants.

Download Complete CV


C. Dunn, "Complete multipartite graphs and the relaxed coloring game,'' Order, to appear. J. Caughman, C. Dunn, N. Neudauer, C. Starr, "Counting lattice chains and Delannoy paths in higher dimensions,'' Discrete Mathematics, to appear. C. Dunn, J. Firkins Nordstrom, C. Naymie, E. Pitney, W. Sehorn, C. Suer, "Clique-relaxed graph coloring,'' Involve, to appear. C. Dunn, "The Relaxed Game Chromatic Index of k-Degenerate Graphs," Discrete Mathematics, 307 (2007) 1767-1775. C. Dunn, H.A. Kierstead, "A Simple Competitive Graph Coloring Algorithm III,'' Journal of Combinatorial Theory, Series B, 92 (2004) 137-150. C. Dunn, H.A. Kierstead, "The Relaxed Game Chromatic Number of Outerplanar Graphs,'' Journal of Graph Theory, 46 (2004) 69-78. C. Dunn, H.A. Kierstead, "A Simple Competitive Graph Coloring Algorithm II,'' Journal of Combinatorial Theory, Series B, 90 (2004) 93-106.

Favorite Quote

"Tend to where you are." (Barbara Sinclair, my 9th grade English teacher)

Michael Hitchman - Associate Professor

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Taylor 212

Education: Ph.D., Mathematics, University of Oregon. B.A., Mathematics, Swarthmore College.

Academic Interests: Dr. Hitchman's research interests are in the areas of topology and geometry. He has more recently been interested in the interplay between topology and geometry in the area of cosmic topology, whose aim is to detect the shape of the universe. He has also participated in collaborative research with students on tiling questions. He enjoys teaching a wide range of courses, including calculus, topology, geometry, analysis, probability and statistics, and astronomy.

Favorite Number


Xiaoyue Luo - Associate Professor

Taylor 211

Education: Ph.D., Applied Mathematics, Michigan State University; M.S., Statistics, Michigan State University; B.S., Mathematics, Beijing Jiaotong University. PhD Michigan State University

Academic Interests: 1. Theoretical and Numerical Methods for Inverse Problems
2. Nonlinear Volterra Integral Equations
3. Local Regularization Methods
4. Nerocomputation
5. Inverse Problems applied to Finance
6. Imaging problems

Jennifer Nordstrom - Professor

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Taylor 205

Education: PhD University of Oregon MS University of Maryland, Baltimore County BS university of Redlands

Academic Interests: Dr. Nordstrom's research interests are in the areas of algebra and combinatorics. She received her Ph. D. in ring theory from the University of Oregon. Dr. Nordstrom primarily teaches Abstract Algebra, Linear Algebra, Number Theory, and Numerical Analysis but maintains an interest in a wide variety of mathematical fields such as game theory and discrete mathematics. She is currently involved in research with undergraduates in the area of combinatorial game theory.


"Battles of Wits and Matters of Trust: Game Theory in Popular Culture." Mathematics and Popular Culture: Essays on Appearances in Film, Literature, Gaming, Television and Other Media, eds, E. Sklar and J. Sklar, McFarland, 2012. "Clique-relaxed graph coloring," C. Dunn, J. Nordstrom, C. Naymie, E. Pitney, W. Sehorn, C. Suer, Involve, Vol. 4, No. 2, 2011. "Generalized Quivers for Locally Unipotent Rings," Communications in Algebra, 2006 Vol. 34, No. 2, pp. 567-583. "Locally Artinian Serial Rings," Communications in Algebra, 2004, Vol. 32, No. 4, pp. 1255-1264.

Favorite Quote

"What if there were no hypothetical questions?" Stephen Wright.

Martha VanCleave - Professor

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Mathus Hall/Taylor 214

Education: PhD, Mathematics Education, Oregon State Univeristy, 1999, MSEd, Mathematics Education, Western Oregon State College, 1985, BA, Mathematics, Linfield College, 1975 Magna cum laude

Academic Interests: Dr. VanCleave's current interests are in undergraduate mathematics education and mathematics teacher preparation. She works with both preservice and inservice teachers. Her recent research is on student discourse in mathematics classrooms. The Oregon Mathematics Leadership Institute (OMLI) has provided a perfect venue for pursuing this interest.
Her dissertation research focused on the beliefs and practices of high school teachers and the use of graphing calculators. First year courses such as Intermediate Algebra, Precalculus, and Finite Math With Calculus along with Statistics and Mathematics For Elementary Teachers compose the bulk of Dr. VanCleave's teaching load. She also has an interests in Operations Research and History of Math. As a mathematics educator, she advises many of Linfield's prospective high school math teachers.