Feb

27

2017

Fix an edge length vector $r=(r_1,\ldots,r_n) \in \mathbb{R}^n_+$, not all $0$. The moduli space $\mathcal{M}_r$ is the space of all $n$-gons in he Euclidean plane with edge lengths $r_1,\ldots,r_n$ modulo orientation preserving isometries of the plane. We'll study the topology of these moduli spaces, particularly focusing on the moduli spaces of quadrilaterals and pentagons. The tool of the day is Morse theory, which we'll develop for the uninitiated attendee.

Feb

27

2017

A decade ago, Yves Couder and coworkers discovered that droplets walking on a vibrating fluid bath exhibit several features previously thought to be exclusive to the microscopic, quantum realm. These walking droplets propel themselves by virtue of a resonant interaction with their own wavefield, and so represent the first macroscopic realization of a pilot-wave system of the form proposed for microscopic quantum dynamics by Louis de Broglie in the 1920s.

Feb

28

2017

Chris's major professor is Prof. Mary Beisiegel.

Feb

28

2017

Let k be an algebraic number field which is a Galois

extension of the rational field. A Minkowski unit in k is

a unit with the additional property that its conjugates under

the Galois action generate a subgroup of units with maximum

possible rank. Minkowski proved long ago that such units always

exist. I will outline a new proof that establishes the existence

of a Minkowski unit \beta such that the Weil height of \beta

is comparable to the sum of the heights of a basis for the

group of units.

Mar

01

2017

Predicting the secondary structure of an RNA sequence with fast speed and high accuracy has been a long standing challenge in computational biology. It is an important problem because knowing structures reveals crucial information about the RNA’s function, which is useful in many applications. Being able to rapidly determine the structure is extremely useful given the overwhelming pace of increase in genomic data (about 10^21 base-pairs per year) and given the small percentage of sequences that have experimentally determined structure.

The lasagna dinner on Saturday, February 11th was a resounding success. Over 60 students, staff, faculty and family members were treated to an array of lasagna and other international dishes prepared for this traditional department affair.

The menu was so excellent that for one category a tie had to be broken!

Thanks go to Charles Camacho for coordinating the student effort; to the office staff, Deanne in particular, for providing the logistics; and also to the faculty that were able...

Mathematics graduate students and faculty may be interested in the recent article "Math PhD Careers: New Opportunities Emerging Amidst Crisis" which is available at http://www.ams.org/publications/journals/notices/201703/rnoti-p260.pdf The article includes thoughtful analyses and helpful suggestions for expanding employment opportunities in mathematical sciences outside the academic setting.

In relation to this, doctoral students are reminded of the upcoming deadline March 1 for NSF Mathematical Sciences Graduate Internship opportunities at http://www.orise.orau.gov/nsf-msgi/default.html....

Congratulations to Diana Gonzalez and Choah Shin who were selected and awarded funding from Sustainable Horizons Institute to participate in SIAM Computational Science and Engineering conference in Atlanta, Feb. 26-March 3, within their Broader Engagement program. See http://shinstitute.org/broader-engagement-at-siam-cse17/

Mathematics students Allison Arnold-Roksandich and Jhih-Jyun Zeng were selected to participate in 2017 MSRI workshops on Automorphic Forms and the Langlands Program and Nonlinear dispersive PDEs. Congratulations!

Graduate Committee is proud to showcase extraordinary activity of our graduate students. The website http://www.math.oregonstate.edu/graduate-travel presents an archive of student travel to workshops, conferences, as well as internships. Please let us know of any omissions or corrections that are due ! (Send an email to Graduate Coordinator, or to Graduate Committee).