We are grateful to the family of Emeritus Professor M. Brendan Fleming for their recent contributions to the department’s growing scholarship funds. Through their generous gifts to the department, the**M. Brendan Fleming Scholarship** will be awarded to a meritorious mathematics major each year starting in 2017.

# New Faculty: Min Hyung Cho

This fall, we have welcomed Dr. Min Hyung Cho to the UML Department of Mathematical Sciences. Min Hyung is an applied mathematician who was most recently atDartmouth College. He holds a Ph. D. from TheUniversity of North Carolina at Charlotte, where his advisor was Prof. Wei Cai. The title of his dissertation was ‘Fast Integral Methods in Layered Media with Application in Photonic Devices.’

Dr. Cho’s research interests include

- Computational Mathematics
- Numerical solutions of PDEs
- Fast Multipole Method (FMM) and treecodes
- Wave propagation in layered media
- High Performance Computing

- M.H. Cho and A. Barnett, Robust fast direct integral equation solver for quasi-periodic scattering problems with a large number of layers, 23, 2, 1775-1799, Optics Express, 2015
- M.H. Cho and W. Cai, A parallel fast algorithm for computing Helmholtz integral operator in 3-D layered media, 231, 17, 5910-5925, J. Computational Physics 2012
- M.H. Cho and W. Cai, A wideband fast multipole method for two-dimensional complex Helmholtz equation, Computer Physics Communications, 2010

# Five Year Mathematics/Epidemiology Program

With the outbreak of Ebola in the U.S. last fall, epidemiologists have had their work cut out for them. Whether they investigate the triggers of an infection for a public health agency or collect blood samples at an outpatient care center, epidemiologists examine the causes of diseases to prevent them from transmitting and recurring. These medical scientists might work in hospitals, laboratories or universities, or for pharmaceutical companies or health insurers.

The Bureau of Labor Statistics predicts employment growth of about 13 percent between 2012 and 2022. Job prospects look promising, especially for medical scientists looking to work for state or local governments and general medical or surgical hospitals.

# Math Alumnus Awarded Sontag Prize in Urban Education

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# New Faculty: Prof. Hung Phan

This spring, we have welcomed **Dr.Hung Phan**to the UML Department of Mathematical Sciences. Dr. Phan is an applied mathematician who was most recently at the University of British Columbia, Okanagan. No doubt he has been right at home in the past few weeks as we’ve had two major snow storms!

Hung’s general research areas are Optimization, Numerical Methods, and Variational Analysis. His Ph. D. was earned at Wayne State University, with a thesis titled *New Variational Principles with Applications in Optimization Theory and Algorithms* (Advisor: Boris Mordukhovich).

Here are three of his recent publications:

**Linear and strong convergence of algorithms involving averagednon expansiveoperators**,(with H.H. Bauschke, D. Noll)*Journal of Mathematical Analysis and Applications*421 (2015), 1-20**The rate of linear convergence of the Douglas-Rachford algorithm for subspaces**,(with H.H. Bauschke, J.Y. Bello Cruz, T.T.A. Nghia, X. Wang)*Journal of Approximation Theory*185 (2014), 63-79**Restricted normal cones and sparsity optimization with affine constraints**,(with H.H. Bauschke, D.R. Luke, X. Wang),*Foundations of Computational Mathematics*14 (2014), 63-83

His web page ishttp://faculty.uml.edu/hung_phan/

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# The 2014 William Lowell Putnam Mathematics Competition

What a way to spend your Saturday! Get yourself to campus for 10 AM and work on six math problems for three hours. Then after a two hour break, spend another three hours of six more problems. That’s what thousands of undergraduate students throughout the US and Canada, including 14 UML students, did on December 6 to take part in the2014 William Lowell Putnam Mathematics Competition.

**The Problems**

Prove that every nonzero coefficient of the Taylor series of \[(1-x+x^{2})e^{x}\] about \(x=0\) is a rational number whose numerator (in lowest terms) is either 1 or a prime number.

**The UML Team**

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# New Faculty: Prof. Jong Soo Lee

*Aspects of Functional Data Inference and Its Applications*(Advisor: Dennis Cox).

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# 3D printing of visual mathematics

Mathematicians have used visual representations of abstract mathematics for many years. With the recent availability of inexpensive 3D printers, it’s now easier to build these objects. Prof. Rida Mirie has started to develop an expertise in this area. Using a DaVinci printer, he is working on printing objects that match the surfaces that students encounter in courses such as Calculus III.

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# Ken’s Khronicles – October 2014

This is the first Khronicles since last December, and we’ve been busy with several personnel changes since then.

**New Hires**

**Retirements**

**More Hiring**

**More News**

# Market Basket spending/non-spending, and more

I guess the biggest news centered around Lowell this summer has been the Market Basket fiasco. A couple of weeks into the boycott, I thought I’d create a visual to contrast our spending at different markets in the past year. Naturally, I used *Mathematica*. Here is a version of the plot I posted on a Facebook group site related to Lowell:

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