### New Members Honored at Induction

Franklin & Marshall College’s Pennsylvania Eta Chapter of Pi Mu Epsilon (PME) welcomed 23 new members at its annual induction ceremony. Pi Mu Epsilon, a national mathematics honor society, promotes and recognizes mathematical scholarship among students in post-secondary institutions by electing members on an honorary basis according to their proficiency in mathematics and by engaging in activities designed to promote the mathematical and scholarly development of its members.

Prof. Annalisa Crannell, chapter advisor, and ChengCheng Zhai ’18, chapter president, presented membership certificates to:

Md Faisal Alam ’19, Abhishek Anand ‘19, Jinxin Chen ‘18, Xinyang Chen ’19, Yuanhang Chen ’19, Grace R. Cochrane ’19, Shuyuan Dong ’20, Kaela S. Drzewiecki ’18, Reed J. Kienzle ’20, Paul J. Kim ’19, Han K. Le ’19, Yinxi Li ’19, Weihan Lyu ’19, Frank H. Murray ’19, Emily Nagle ’19, Kyle M. Perezous ’20, Jonathan M. Shaheen ’19, Jonathon R. Sinton ’20, Yifei Sun ’19, Fangzhou Wei ’20, Qing Ye ’19, Yung Yu ’19, and Yuxi Zhu ’19.

### Students Experience Spring MAA Session

Eight students traveled to the EPaDel Spring Conference at Temple University. with Prof. Annalisa Crannell. The professor reported the group had a wonderful time exploring Philadelphia and the participants got to meet other mathematicians, graduate students, and undergraduates from many schools at this regional meeting of the Mathematical Association of America (MAA). The students who went also participated in a fun Student Mathematics Competition.

Several students in the group presented math talks: Anton Arapin '19 spoke on "The Shape of a Mirror; " Yu Wan '20 explored "The Konigsberg Bridge: A Puzzle from Graph Theory;" Fanzhou "Vickie" Wei '20 remarked on "The Monty Hall Problem;" and Nart Shalqini '21 addressed "Achieving Incompleteness with Self Reference."

### Students Receive Departmental Achievement Awards

Katherine M. Kidder’ 18 and Chencheng Zhai ‘18 are the 2018 co-recipients of the Ronald K. Stuart Mathematics Prize. The Stuart Prize is the highest honor the F&M Mathematics Department grants and is “awarded to the student who has completed major work in the field of mathematics with greatest distinction.” The prize is endowed by funds donated to the department, and includes an honorary stipend.

In addition to the Stuart Prize, fourteen students are the recipients of the 2018 John Kershner Scholar designation. This honor is awarded to students of good and regular standing in the College for “proficiency in mathematics,” and includes an honorary stipend.

Tomass Brazovskis ’18, Katherine M. Kidder ’18, Yunghong Li ’19, Hung P. Nguyen ’18, Marko Savic ’18 and Xuan Zhang 18 are second time recipients.

First-time recipients include: Md Faisal Alam ’19, Filip Keri ’18, Yinxi Li ’19, Weihan Lyu ’19, Yuxin Tang ’18, Yanlin Yang ’18, Chengcheng Zhai ’18, and Yuxi Zhu ‘19.

### Math & Origami Take Common Hour Stage

The Math Club, together with the Office of Multicultural Affairs, Art & Art History Department and the Office of the Dean of the College sponsored a recent visit of expert in the field of math and origami, Dr. Thomas Hull, to an F&M Common Hour talk that was open to the entire campus community and the public. Math Club President Chengcheng Zhai ’18 and the Math Department's Prof. Annalisa Crannell proposed the talk.

Zhai described details of the speaker’s background during her introduction of Dr. Hull at Common Hour. “Prof. Hull teaches mathematics at Western New England University, but has given talks all over the United States and in Japan. He was featured in the 2009 documentary 'Between the Folds',” she commented. “He is the author of three books on origami, including *Project Origami*, which is a book on incorporating the mathematics of paper folding into college-level math classes. He has also published numerous research papers in mathematics and also in materials science. One of his papers won the A. T. Yang Memorial Award in Theoretical Kinematics.”

“But he doesn’t just write and speak about origami,” Zhai added, “He’s a master practitioner. He has exhibited his folded pieces at numerous art exhibitions, national and international, as well. His origami model “Five Intersecting Tetrahedral” was named one of the “Top 10 Origami Models of All Time.”

In an interview with Origami USA, Dr. Hull said,

“Math is not just about algebra and equations; it is about understanding patterns. Those patterns could be in numbers or could be in geometry or they could be in nature or who knows . . . I find that in origami I'm trying to do the same thing. I'm trying to take interesting patterns and express them with paper.”

In addition to the Common Hour talk during his visit, Dr. Hull spoke for the Joint Math Colloquium Series organized by F&M and Millersville University, and conducted a hands-on workshop at F&M’s Faculty Center.

Talks, Seminars & Competitions Take Shape

### Joint Math Colloquium Series

F&M and our colleagues down the road in Millersville University jointly present a quasi-weekly mathematics colloquium talk series on Thursday afternoons during the academic year. All are welcome! Talks vary in their intended audiences: Some are moderately specialized and technical, while others are very student-friendly. The Spring 2019 schedule is here.

### Tetrahedral Geometry-Topology Seminar

Topologists, geometers, and other interested colleagues from F&M, Millersville University, Elizabethtown College, and Lebanon Valley College (the four vertices of our "tetrahedron") also co-sponsor a monthly geometry and topology research seminar series. We generally meet on the first Friday of each month at Hempfield High School (the approximate barycenter of our tetrahedron), in a math classroom festooned with inspirational Garfield posters. We then relax with a nice dinner out.

### Putnam Exam

The Putnam Exam is a prestigious, difficult competitive mathematics exam administered annually on the first Saturday in December to students at colleges and universities across the US and Canada. Franklin & Marshall has made good showings in recent years, and we hope to continue the tradition this year.

Interested students should contact Prof. Henry Chan at ychan@fandm.edu (Office: STA 204) for more information.

The Pulse of Math at F&M