JMU Department of Mathematics & Statistics
2005 Newsletter (Updated 20 September 2005)

Table of Contents

    Burruss Hall
  1. Letter from Dave Carothers, Department Head
  2. New Faculty Members
  3. Liu Named Madison Scholar
  4. Peterson in Austria
  5. The Summer 2004 REU Program
  6. 21st Annual Mathematical Contest in Modeling
  7. Faculty Get Pied on Pi Day
  8. Talks and Presentations
  9. Student Awards
  10. High School Math Teacher of the Year
  11. Contributions
  12. Alumni Info
  13. Puzzle Corner
  14. Previous Newsletters

Letter from Dave Carothers, Department Head

Greetings to all from the mathematics community at JMU.

Several new initiatives at JMU continue to grow and expand. The statistics major is now an established and growing program. Our master's degree in mathematics education (a joint program with the College of Education) is now approved and providing very desirable coursework for secondary teachers. We are currently working with several other universities in the state to make these programs available and convenient for a much wider audience throughout Virginia.

Student research continues to be a priority, with very successful summer programs for mathematics and statistics students at JMU with funding from the National Science Foundation. You can read about faculty accomplishments throughout this newsletter. One example: James Liu received the College of Science Madison Scholar award for 2005, based on his outstanding record as a researcher and director of student projects. Congratulations, James!

New Faculty Members

We welcomed four new faculty members to our department this year: Beth Arnold, Nusrat Jahan, Samir Safi, and Brian Walton.

  • Beth Arnold:

    I received my Bachelor's degree in Government from Georgetown University in Washington, DC. I have a Master's in Education from George Mason University in Fairfax, and a PhD in Math from the University of Maryland at College Park. After graduate school, I had a postdoctoral position at Texas A&M University.

    My research is in computational commutative algebra, more specifically Groebner bases. I have developed a fast algorithm for computing GB's using modular and p-adic methods. I have also dabbled in using Groebner basis techniques for solving disclosure limitation problems in statistics. I enjoy teaching IDLS courses, Calculus and any upper level algebra courses.

    My outside interests include horses, horses and horses. I live on a farm north of Harrisonburg with my husband, 2 daughters and 5 horses, 2 dogs and 7 cats.

  • Nusrat Jahan:

    I received my undergraduate degree in statistics from University of Dhaka, Bangaldesh; Master's in statistics from Queen's University, Canada; and Ph.D. in Mathematical Sciences (with concentration in statistics) from Mississippi State University. I taught undergraduate courses at Mississippi state University. There I was awarded the 'Teaching Assistant of the Year' award for 2002-2003.

    My research interests are nonlinear time series and their applications in the field of biology, epidemiology, and business.

  • Samir Safi:

    I received my undergraduate degree in Statistics and Scientific Computations from Al-Mansoura University in Egypt, a master's degree and PhD in Statistics from the American University in Washington DC in 2004. My first teaching experience at the Islamic University of Gaza in Palestine was in 1994. I taught many statistics courses in Palestine such as basic statistics, statistical analysis, regression, econometrics, SPSS, and finite mathematics between 1994 and 1997 and between 1998 and 2000. I taught many Statistics courses at American University in Washington DC in 2000-2004.

    In 2003-2004, I have the opportunity to teach the graduate level courses, Statistical Methods, Applied Multivariate Statistics and Advanced Measurement and Evaluation at Howard University. These courses gave me the opportunity to teach statistical concepts to students who were highly motivated and inquisitive.

    I lecture using power point slides which I found to be helpful and the students found them easier and better than writing. Moreover; the students like the format of the lecture and they like the format of the slides as well. It allows them to listen and not to be busy writing things rather than focusing on the lecture. Also; they are asked to download the lectures before they come to class and they have enough space to write notes for themselves.

    My research interest involves an important statistical problem concerning estimation in the presence of auto-correlated disturbances. My particular field of interest is the comparison of estimators in regression models with auto-correlated disturbances. It is known that the most famous method of estimation, ordinary least squares, may be not optimal in this context. For this reason, over the years many specialized estimation techniques have been developed. These methods are more complicated than ordinary least squares and are less understood. For example, the small sample behavior is not well known. Neither is the robustness of these procedures against variations in the assumption of models underlying them. I am comparing these estimators and developing criterion under which ordinary least squares estimation perform nearly as well as the more specialized estimators.

  • Brian Walton:

    I received my Bachelor's degree in August of 1996 in Mathematics from Brigham Young University in Provo, Utah. For an honor's thesis, I learned about group representations as I developed a decomposition of the regular representation of the dihedral group. I never imagined becoming so familiar with trigonometric identities as I did during this project.

    The day after my graduation, I moved to Tucson, Arizona. Feeling a desire to apply the power of mathematics to solve problems in other disciplines, I was entering the interdisciplinary graduate program in Applied Mathematics at The University of Arizona in Tucson, Arizona. I completed a Master's degree in 1998. After another 4 years, I was awarded a Ph.D. in Applied Mathematics in 2002. I spent the next two years at Seattle, Washington, working in a postdoctoral fellowship in the Department of Applied Mathematics at The University of Washington.

    My research interests lie mainly in the applications of mathematics to problems in biology. Although I have general training in the broad category of applied mathematics, I have focused particularly on the area of applied probability and stochastic processes. One application uses a probabilistic model for how a protein called kinesin pulls cargo in a cell to develop statistically meaningful methods for analyzing experimental data sets recording this motor protein in action.

    In teaching, I try to convey a sense of the beauty of mathematics while at the same time demonstrating its utility and importance as a tool of application. This year, I particularly enjoyed teaching a course on mathematical models in biology with Biology professor, Dr. Reid Harris, which he and Dr. Sochacki introduced last year. I look forward to continuing to develop opportunities for mathematicians to learn interdisciplinary modeling skills and for biologists to deepen their mathematical insight and computational skills.

James Liu Named Madison Scholar

James Liu has been named the 2005-2006 Madison Scholar for the College of Science and Mathematics.

The Madison Scholar award recognizes the member of the college faculty who has made outstanding contributions in research and scholarship.

From the Nomination for James:

"It is in no sense an exaggeration to say that James is an internationally recognized and respected scholar. As such, he is an extremely valuable member of our faculty, but perhaps more important is the fact that James is a scholar who mathematical and scientific work has an important impact on undergraduate students and the undergraduate curriculum at James Madison University...James Liu is a mathematician who research is highly original, deep, and of extensive interest to the mathematical community."

James has an exceptional record of publication in highly respected mathematics research journals. He has directed the research of students who themselves have published in mainstream mathematics journals. James is also the author of a well-received textbook "Qualitative Theory of Differential Equations."

Peterson in Austria

Professor Gary Peterson spent spring semester of 2005 on educational leave. Part of this leave was spent as a visitor at Johannes Kepler Universität in Linz, Austria where he is a research fellow and lecturer from March through June. During this stay he is doing research and conducting a seminar for graduate students and faculty on idempotents in nearrings.

The Summer 2004 REU Program

2004 REU Participants. The department's NSF-sponsored Research Experience for Undergraduates (REU) program was interesting and successful in the summer of 2004. Eight students were chosen from over 250 applicants from across the country; the selected students worked on an intensive, 8-week research project in groups of two under the direction of a faculty mentor.

During the summer of 2004, the four research projects were:

  • Hasan Hamdan directed Kristen Dardia (JMU) and Melanie Wilson (Allegheny College) in Using Scale Mixtures of Normals to Model Continuously Compounded Returns.
  • Jason Rosenhouse directed Mary Balmes (Saint Joseph's College) and Jackie Kaminski (Xavier University) in Conditions for One-Regularity in Cayley Graphs.
  • Laura Taalman directed Anna-Lisa Breiland (Willamette University) and Layla Oesper (Pomona College) in ?.
  • Paul Warne directed Jeb Collins (JMU) and Matt Watts (JMU) in New Developments for Analysis of Intracranial Saccular Aneurysms: I. Biomechanical model, II. Computational algorithm, and III. Scientific visualization.

Six of the eight students traveled to the Joint AMS-MAA Meetings in Atlanta to present their work at the Special Session on Research in Mathematics by Undergraduates and at the MAA Undergraduate Research Poster Session. In addition, Dardia and Wilson traveled to the Young Mathematician Conference at Ohio State in August to present their work, and Breiland and Oesper presented their work at the Big Sky Conference on Discrete Mathematics at the University of Montana.

During the summer of 2005, the four research groups will be led by Elizabeth Brown (mathematical logic), Hasan Hamdan (probability and statistics), James Liu (differential equations), and Jason Rosenhouse (algebraic graph theory).

21st Annual Mathematical Contest in Modeling

The Mathematical Contest in Modeling (MCM) is an international contest for high school students and college undergraduates. There are two problems, Problem A (continuous) and Problem B (discrete), and teams of three students have from 8pm Thursday night until 8pm the following Monday to work on the problem of their choice. 644 teams submitted solution papers, representing ten countries. JMU has had teams entering the competition since 1990. Our best ever result was achieved in 2001 when JMU was the only institution to have two teams each do a different problem and both be awarded Meritorious.

In 2005, three teams entered the 21st Annual Mathematical Contest in Modeling, and one team entered the Interdisciplinary Contest in Modeling (ICM). The teams were Joshua Blake, Justin Creasy, Nick Giffen, (Advisor: Jim Sochacki) Greg Tumolo, Jonathan Lamanna, Mo La Croix (advisor: Caroline Smith) Andrew Domazos, Ryan Charest, Mary-Kate Sokolowski (advisor: Hasan Hamdan) Sarah Shahmoradian, James Kokorelis, Nicole Wood (advisor: Brian Walton – ICM ).

The work submitted by the team consisting of Joshua Blake, Justin Creasy and Nick Giffen, was judged Meritorious. Andrew Domazos, Ryan Charest, & Mary-Kate Sokolowski (MCM) and Sarah Shahmoradian, James Kokorelis & Nicole Wood (ICM) obtained Honorable Mentions, and Greg Tumolo, Jonathan Lamanna and Mo La Croix received a Succesful Participant. Congratulations to them for their good work and thank you to all of the teams for participating!

Faculty Get Pied on Pi Day

Faculty Get Pied. This year the JMU Department of Mathematics and Statistics celebrated "Pi Day" (March 14) with its First Annual Pi-Throwing Chairity Fundrasier.

The Math Club did a fantastic job organizing this event that was extremely well-attended and enjoyed by all, even by those people whose misfortune it was to leave the event covered in whipped-cream pie. Fourteen faculty members bravely volunteered for the event, and one donation jar for each faculty member was placed in the student lounge. The three faculty whose jars collected the most money at the end of the week were "pi-ed" on the big day. Students and faculty alike contributed generously to the jars.

At approximately 3:14 on 3/14, Rickie Domangue, Leonard Van Wyk, and Debra Warne donned protective goggles and garbage-bag shirts, lined up in the sun in front of a growing crowd outside Burruss Hall, and endured a seemingly endless barrage of whipped-cream pies thrown at them (mostly) by students. The event was captured on film. Professors Domangue, Van Wyk, and Warne are to be commended for their bravery under fire. The event raised a total of $150 for Big Brothers, Big Sisters.

Talks and Presentations

Faculty members gave assorted talks and presentations at various meetings this past year, including the following.

  • Peter Kohn presented "Integrating Calculus, Precalculus and Algebra" at the AMATYC Annual Conference, Orlando, FL, November 2004.
  • Ed Parker gave a talk on nonlinear semigroups at the conference at University of North Texas honoring John Neuberger's 70th birthday, November 2004, and was a panelist discussing "Preparation for and Day-to-day Conduct of Moore-Method Courses" at the Legacy of R. L. Moore conference, in Austin, TX, May 2005.
  • Dave Pruett gave a talk entitled "Motivating Calc. III by Celestial Mechanics" at the MD-DC-VA MAA sectional meeting at the University of Virginia, April 2005.
  • Jason Rosenhouse gave a contributed talk at the 18 Annual Midwest Conference for Combinatorics, Computing and Cryptography entitled "Hamilton Cycles in Cayley Graphs of the Picard Group" in Rochester, New York, in October 2004, and an invited talk at the AMS Special Session on Graph Theory entitled "Lower Bounds on the Cheeger Constants of Highly Connected Regular Graphs" in Bowling Green, KY, March 2005.
  • Caroline Smith was awarded the 'Navigator Award' for "Dedicated Contribution to Systems Engineering Education and Research" by Stevens Institute of Technology, Hoboken, NJ, September 2004.
  • Jim Sochacki gave a talk on Newton's method at the conference at University of North Texas honoring John Neuberger's 70th birthday, November 2004, and a talk entitled "Polynomial differential equations and periodic solutions" at the Spring 2005 MAA VA-MD-DC Sectional Meeting at the University of Virginia.
  • Laura Taalman presented "Problem Zero: A simply way to encourage students to read mathematics" at the MAA Spring MD-DC-VA Sectional Meetings at the University of Virginia, April 2005, as well as "Problem Zero: Getting students to read mathematics and make it their own" at the MAA Session on Getting Students to Explore Concepts Through Writing in Mathematics at MAA MathFest, Providence, August 2004.
  • Leonard Van Wyk attended an MAA PREP workshop at MSRI in Berkeley, CA, on Geometric Combinatorics in May of 2004. He also presented the results of his summer 2004 REU project (k-alternating knots) at the MD-DC-VA MAA meeting at the University of Virginia, April 2005.
  • Debra Warne was invited to present "Asymptotic analysis of finite deformation in a nonlinear transversely isotropic incompressible hyperelastic half-space subjected to a tensile point load" in 40 Years of Nonlinear Mechanics: Symposium Honoring Alan S. Wineman at the 41st Annual Technical Meeting of the Society of Engineering Science, Univ. of Nebraska, Lincoln, NE, October 2004.
  • Paul Warne was invited to present "The High-Order Accuracy Algebraic-Maclaurin-Pade Numerical Method with Applications to Singular Differential Equations from Nonlinear Mechanics" in the Symposium Nonlinear Elasticity and Coupled Fields: Tribute to the 60th Birthday of Niall Horgan at the 41st Annual Technical Meeting of the Society of Engineering Science, Univ. of Nebraska, Lincoln, NE, October 2004.

Student Awards

Every spring the department recognizes the achievements of some of our outstanding students at an awards ceremony sponsored by the College of Science and Mathematics.

The award recipients for 2005 were:
  • Ikenberry Award: Scott Carter Keith
  • Mathematics Research Award: Nick Giffen
  • Metron Applied Mathematics Award: James Collins
  • Thomson Learning Future HS Teacher Award: Christopher Babb
  • Award for Outstanding Statistics Major: Ryan Charest
  • Award for Outstanding Statistics Minor: Rebekah Jones
  • Thomsen Learning IDLS Award: Sara Markham
  • In addition, Ju-Han ("Donna") Chang, Mathematics minor and President of the JMU Chapter of the mathematics honors society Pi Mu Epsilon, shared the College of Science and Mathematics Outstanding Senior Award with the 2005 JMU Valedictorian.

High School Math Teacher of the Year

Thomas Koliss, from Newark High School in Newark, Delaware, was the recipient of the 2004-2005 High School Mathematics Teacher Award from the Department of Mathematics and Statistics. Mr. Koliss is the ninth recipient of the award given to a teacher who is nominated by a JMU student in recognition of a high school math teacher's work.

Mr. Koliss was nominated by JMU student and future teacher Cheryn Clark, who is majoring in Earth Science. In her nomination letter Cheryn wrote, "I am recommending Mr. Koliss for teacher of the year because of his dedication, enthusiasm and helpfulness to his students. He instilled in me a love for math that I have to this day. He was always willing to come into school early and/or stay late to help me with any difficulties I may have had -- even when I was no longer in his class. His devotion to teaching students is something I will always remember and try to emulate as I pursue a teaching career. Of all the teachers I had, Mr. Koliss was the most dedicated. His hours went from 6 a.m. to 5 p.m., just to help his students. I loved how he would explain things in many different ways so you would understand it completely. While many teachers I had would would just give you the answer, Mr. Koliss knew better and seemed to be more in touch with his students. He wanted his students to succeed throughout life, not just in high school."

Cheryn continued, "He surprises me every year. He still offers to help me in college if I have trouble with physics or mathematics. He will forever be known as `the man with the most chalk on himself'. At the end of each day, Mr. Koliss looked as if he had rolled in chalk dust, but we all loved him for it."

Unfortunately, due to the distance and scheduling conflicts, Mr. Koliss was not able to come to JMU to receive his award, so a plaque in recognition of his award will be mail him. His name will be engraved along with the names of the previous recipients of the award on our plaque in Burruss Hall.

Last year's recipient, Cathileen Love teaches at Parkville High School in Baltimore County, Maryland. Previous recipients of the award are: Michelle Gordon or King George, Virginia, JoAnna Sychterz of Shillington, Pennsylvania, Elizabeth Riddle of Alexandria, Robert Salewski of Fairfax, June Billings of Yorktown, Martha Blakeney of Leesburg and Kathy Beatty of Clifton.

Contributions

How would you like to help support the programs in the Department of Mathematics and Statistics? You can help by contributing to our student scholarship fund, or by making an unrestricted contribution to the department's JMU Foundation fund. Unrestricted funds can be used, for example, to support student activities or to bring student-oriented speakers to campus. Funds may be sent to: The JMU Foundation MSC 8501 James Madison University Harrisonburg, VA 22807 Mark the donation "Greater University Fund" and designate it for the Department of Mathematics and Statistics.

Alumni Info

Tell us what you are doing! We'd love to hear from you. Fill out our on-line alumni information form.

Puzzle Corner

Here is last year's puzzle:

Are there any 10 digit numbers abcdefghij such that each digit is different, and so that the number ab is divisible by 2, abc is divisible by 3, abcd is divisible by 4, etc? If there are any, find one. Is the answer unique?

The winning solution was submitted by Kirsten (Speca) Barr ('95).

Here is this year's puzzle:

One hundred ants are placed on a stick one meter long. Each ant begins to travel either to the left or to the right at a constant speed of one meter per minute. When two ants meet, they bounce off and reverse direction while maintaining their speed. When an ant reaches either end of the stick it falls off.

What is the longest amount of time one must wait to be sure that the stick is completely ant-free?

The person who submits the best solution will receive a copy of The Mathematical Experience by Phil David and Reuben Hersh. Mail your solution to Peter Kohn at the Department of Mathematics and Statistics, or e-mail your solution to pkohn@math.jmu.edu.

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