Concordia College

ROGER HAGLUND
Instructor
Mathematics and Computer Science

Specialty:
Liberal arts mathematics
Mathematics education
Software applications

Research:
• Using humanistic content and teaching methods
to motivate students and counteract negative
perceptions of mathematics

Interests:
Math education for non-math majors, preparation
of mathematics teachers, American folk dance

Education:
B.A., Concordia College, Moorhead, Minn.
M.S., Minnesota State University Moorhead, Moorhead, Minn.

GERALD A. HEUER
Mathematician in Residence
Professor Emeritus
Mathematics and Computer Science

Specialty:
Mathematics (probability, game theory,
real and complex analysis, mathematics
competitions, mathematical olympiads)

Research:
• “Which four-part partition games are isomorphic
to Silverman’s Game?,” “European J. Oper.
Research” 137 (2002), 588-592.
• “Three-part partition games on rectangles,” “Theoretical Computer Science A” 259 (2001), 639-661.
• “The game Double-Silver on intervals,” “International Journal of Mathematics and Mathematical Sciences” 26 (2001), 485-496.
• (with Ulrike Leopold-Wildburger) “Four-part partition games isomorphic to Silverman’s game, “European J. Oper. Research” 124/3 (2000), 629-640.
• (with Ulrike Leopold-Wildburger) “Four-part partition games by transformation of variables in Silverman’s Game: Details of some examples,” “Central European J. Oper. Research” 7 (2000), 249-275.

Interests:
Chess, mountain climbing, classical music

Education:
B.A., Concordia College, Moorhead, Minn.
Ph.D., Minneapolis

WILLIAM K. (BILL) TOMHAVE
Professor and Chair
Mathematics and Computer Science

Specialty:
Mathematics education
Teaching mathematics
Mathematics for elementary through middle grades
Use of technology in teaching: graphing calculators
Geometer’s sketchpad; fathom

Research:
• Recent talks: “Don’t Throw a Fit — Matching Curves
to Data Sets.” Minnesota Council of Teachers of
Mathematics, Duluth, Minn., April 26, 2003
• “A View from CCICME - An International Conference on Mathematics Education,” Minnesota Council of Teachers of Mathematics. Duluth, Minn., March 22, 2002
• “Observations and Impressions from CCICME,”
Tri-College University Mathematics Colloquium, Oct. 25, 2001
• “Changing Models of Teacher Preparation.” Changchun China International Conference on Mathematics on Mathematics Education. Changchun, China, Aug. 17, 2001
• “A Math Teacher Looks at the News.” National Council of Teachers of Mathematics, Central Regional Meeting. Omaha, Nebraska. Oct. 22, 2000

Interests:
Creation science and related issues; Bible study from
a Baptist perspective; issues in public education — serves as an elected member of the Moorhead Area Public Schools board

Education:
B.A., Luther College, Decorah, Iowa
M.S., Ph.D., Iowa State University, Ames, Iowa

MARY VANDERSCHOOT
Assistant Professor
Mathematics and Computer Science

Specialty:
Mathematics
Topological dynamical systems
Differential equations

HAIMENG ZHANG
Assistant Professor
Mathematics and Computer Science

Specialty:
Statistics
Computer Networking

Research:
• Survival Analysis
• Semiparametric
• Nonparametric Estimation
• Asymptotic efficiency of estimation in the partial Koziol-Green model, “Journal of Statistical Planning and Inference,” in press.
• Generalized maximum likelihood estimation in the proportional hazards model with partially informative censoring, Metrika, in press. (With M. B. Rao)
• Information and asymptotic efficiency of case-cohort sampling design in Cox's regression model, “Journal of Multivariate Analysis,” 2003, 85, 292-317. (With L. Goldstein)
• Weak consistency in linear models with equi-correlated random errors, “Statistics,” 2003, 37 (6), 467-477. (With M. B. Rao and X. Jia)

Interests:
Go game, badminton, traveling, music

Education:
B.A., Luther College, Decorah, Iowa
M.S., Ph.D., Iowa State University, Ames, Iowa