The COSM Aggregate

December 8, 2017

Research Roundup Edition

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Congratulations COSM Graduates!

The College of Science and Mathematics would like to congratulate all of our graduates! We wish you the best in everything that you do. Remember to keep in touch with your professors and advisors and drop us a line some time letting us know what you're doing out there in the world. We love to hear about the amazing work our alums are involved in.


Professor Hans-Jörg Schanz, Ph.D., is a recipient of the Petroleum Research Fund – New Directions (PRF-ND) research grant awarded by the American Chemical Society. He and his research team will receive $ 70,000 over the next three years to investigate “New Materials via Hydroamination and Hydroamidation”. The research targets the development of new polyamide materials with unusual properties using a synthetic technique unprecedented in the field of material science thus far. The “New Directions” program of PRF supports investigators branching out into new research fields and opportunities.


Professor Christine Whitlock, Ph.D.'s, research is in the area of organic synthesis and involves the preparation of novel trisindolyl amines with iron-chelating properties. These amines are being used to induce cell death in K562 (human leukemia) and PC3 (human prostate) cells. Her research also involves the total synthesis of novel bisindolyl marine alkaloids. Of primary interest is the synthesis of derivatives of the naturally-occurring dragmacidin alkaloids, which possess anticancer and antifungal properties.

Martha L. Abell, Ph.D., Dean of the College of Science and Mathematics and Professor of Mathematics, is a member of a 5-person Leadership Team for the Mathematical Association of America’s Instructional Practices (IP) Guide. The Project Team has led faculty from a wide range of institutions representing various professional associations over the past few years to develop this evidence-based “how to” guide focused on teaching practices in undergraduate courses. This IP Guide is informed by the substantial body of research regarding effective teaching and deep student learning and the associated requirement of student engagement with the mathematics both inside and outside the classroom. Students learn best when they are engaged in their learning, and the guide supports the use of evidence-based instructional strategies to actively engage students in the learning process. The IP Guide, which is designed for all instructors of mathematics, will be finalized in Spring 2018 and is intended as a catalyst for community transformation toward improved mathematics learning experiences for our students.


Reference: https://www.maa.org/programs/faculty-and-departments/ip-guide


Math professor conducts research at Harvard University

Professor Sze-Man Ngai, Ph.D., was a visiting scholar at the Center of Mathematical Sciences and Applications of Harvard University from 08/01/2016 to 7/30/2017. Under the direction of Professor Shing-Tung Yau (Fields medalist), he conducted collaborative research on problems on the interface between classical and fractal geometry.


Math Faculty organized International Conference in Savannah

Department of Mathematical Sciences hosted the International Conference in Approximation Theory dedicated to the memory of late Professor Yingkang Hu. The conference program committee includes faculty members Martha Abell, Sharon Taylor, Emil Iacob, Jiehua Zhu and Alex Stokolos. The conference took place at Georgia Coastal Center, Savannah. More then 40 Mathematicians took part at the event. There were representatives from the US, Canada, Austria, Ukraine, Polish, Russia and India. The invited talks were delivered by world-wide experts in Approximation Theory. The conference was supported by the NSF grant, Departmental funds, and by the University Service Faculty Grant. The conference organizers and the conference participant Dr. Sergey Tikhonov form a team of editors of the conference proceedings. The volume is planned to be submitted to a very prestigious "Applied and Numerical Harmonic Analysis" series published by Springer.


Math majors presented at conferences, won prizes

Math majors won Patterson Prizes for their presentations at MAA Southeastern Section Meeting in Macon (Spring 2017):


  • Rick Steele, supervised by Professor Jiehua Zhu, Ph.D.
  • Toby Bush, supervised by Professor Emil Iacob, Ph.D.


Under the guidance of her honors thesis advisor Professor Ha Nguyen, Ph.D., math major Bailey Kirk presented at the Georgia Association of Mathematics Teacher Educators (GAMTE) Conference as the lead author and lead speaker. She was the first undergraduate student who was a lead presenter at this conference. Her research is on Mathematics Education Through College Algebra and Calculus Project to analyze where students struggle the most in college algebra and the prerequisite skills required for calculus and whether there are any common trends among the different classes.


Math Tournament

The Department of Mathematical Sciences hosted its 29th Annual Georgia Southern Mathematics Tournament on Saturday, February 25, 2017. This year's tournament attracted a record 905 middle and high school students from 65 schools in the East Central and Southeast regions of Georgia. Three of this year's participants received the Arthur G. Sparks award for perfect scores on the individual written exam. Over one hundred Georgia Southern University students assisted the Mathematical Sciences department faculty on the day of the tournament. The Georgia Southern Mathematics Tournament continues to be one of the premiere outreach programs of the Department of Mathematical Sciences; the Mathematics Tournament Committee is in the process of planning for our 30th annual tournament in February 2018.


Books & Publications


  • COSM faculty member and Professor of Mathematics, Andrew Sills, Ph.D., has published a book entitled An Invitation to the Rogers--Ramanujan Identities, CRC Press, 2017. The Rogers--Ramanujan identities are a pair of infinite series—infinite product identities that were first discovered in 1894. Over the past several decades these identities, and identities of similar type, have found applications in number theory, combinatorics, Lie algebra and vertex operator algebra theory, physics (especially statistical mechanics), and computer science (especially algorithmic proof theory). Presented in a coherant and clear style, this will be the first book entirely devoted to the Rogers--Ramanujan identities and includes historical material that is unavailable elsewhere.
  • Professor Alex Stokolos, Ph.D., published a book chapter by Springer. Dmitirshin D., Khamitova A., Tohaneanu M. and Stokolos A., Finding Cycles in Nonlinear Autonomous Discrete Dynamical Systems, Harmonic Analysis, Partial Differential Equations, Banach Spaces, and Operator Theory (Volume 2), Springer 2017, pp 199-237
  • Professor Saeed Nasseh, Ph.D., and his collaborator solved or partially solved long-standing problem in the 70s. Saeed Nasseh, Ph.D., and Sean Sather-Wagstaff, Ph.D., Vanishing of Ext and Tor over fiber products, Proceedings of the American Mathematical Society, 145 (2017), no. 11, 4661-4674. Saeed Nasseh, Ph.D., and Sean Sather-Wagstaff, Ph.D., Geometric aspects of representation theory for DG algebras: answering a question of Vasconcelos, Journal of the London Mathematical Society, 96 (2017), no. 1, 271-292.

  • Professor Alina Iacob, Ph.D., published paper in high impact journal S. Estrada, X. Fu, A. Iacob: “Totally acyclic complexes”, Journal of Algebra, 470: 300 - 319 , 2017


Math faculty present at national and international conferences


Professor Sze-Man, Ph.D.

Spectral dimension of a class of one-dimensional fractal Laplacians, keynote speaker, 6th Cornell Conference on Analysis, Probability, and Mathematical Physics on Fractals, Cornell University, June 13-17, 2017.


Professor Francois Ziegler, Ph.D.

A one hour invited talk at the annual “Joint Cornell-Penn State Symplectic Seminar”

Cornell University, Saturday 22 April 2017


Professor Alina Iacob, Ph.D.

Maurice Auslander Distinguished Lectures and International Conference 2017, April

26 - May 1, 2017, Woods Hole Oceanographic Institute, Quissett Campus.


Professor Saeed Nasseh, Ph.D.

Fall Southeastern Section Meeting of the AMS, Special Session on Commutative Algebra: Interactions with Algebraic Geometry and Algebraic Topology, University of Central Florida, Orlando, September 23-24, 2017.


Professor Hua Wang, Ph.D.

Graph invariants of trees: an informal introduction, Department of Mathematics, Central China Normal University, August, 2017, Wuhan, China


Professor Yuanzhen Shao, Ph.D.

XXVI Southeast Geometry Seminar", Georgia Institute of Technology, Atlanta, February 26, 2017


Professor Yan Wu, Ph.D.

International Conference on Control Science and Systems Engineering, Beijing, China, August 17-19, 2017


Grants
  • Professors Scott Kersey, Ph.D., and Stephen Carden, Ph.D., in the Department of Mathematical Sciences received an Affordable Learning Georgia grant of $10,800 to design, develop and teach undergraduate Calculus and Statistics classes using open source zero cost-to-student course materials. They carried out their implementation in 4 Calculus classes and 2 Statistics classes in the Fall semester using the newly installed WeBWorK homework system at Georgia Southern and OpenStax textbooks, as well as course materials they developed. This new course model has the potential to save our students thousands of dollars, providing an easier route to graduation and the chance to reach financially challenged students who otherwise may not afford a college education.


Visiting Positions


  • Professor Yi Lin, Ph.D., held visiting research professor at School of Mathematics, Sichuan University, June 2017-July 2017

Diamondback Terrapin Conservation

The Georgia Southern University Sea Turtle Program at St. Catherines Island (SCI) conducts daily monitoring of SCI beaches from May 1 through September each year to monitor sea turtle nesting activity and conserve sea turtle nests. Program Co-Director Jaynie Gaskin expanded the conservation efforts in 2017 to include conservation research on diamondback terrapins – a salt marsh species threatened in many areas by marsh loss, vehicular mortality on causeways, and predation. Jaynie worked with interns on SCI to document 115 crawlways and 39 nests. The work was supported with a St. Catherines Island Research Foundation grant to Jaynie. Sarah Walker (GS undergraduate) is supported by College Office of Undergraduate Research (COUR) funding and will use GIS to construct maps of nesting habitat and crawlway density. Monitoring of diamondback terrapin nests revealed intense predation by raccoons and feral hogs resulting in losses of ~ 60% of the nests. Nest elevation and locality also indicated extreme vulnerability to spring tide overwash and storm washouts. The work conducted in the summer of 2017 has allowed development of conservation protocols for diamondback terrapin conservation on SCI, with potential application to other nesting sites.


Gopher Tortoise Research on St. Catherines Island

A comprehensive survey of a population of gopher tortoises on St. Catherines Island (SCI), GA began in the summer of 2017, supported by a grant from the St. Catherines Island Research Foundation. The tortoise population grew from tortoises relocated from habitat lost to development in Bulloch County. The SCI gopher tortoise population has become a resource for stocking new or recovered habitat in the southeast U.S. The consortium of researchers, organized and led by Jaynie Gaskin (GSU - Dept. of Geology & Geography), includes Christine Hladik (GSU – Dept. of Geology & Geography), Kelly Vance (GSU – Dept. of Geology & Geography), Terry Norton (Georgia Sea Turtle Center), Tracey Tuberville (Savannah River Ecology Laboratory), and undergraduate participants Jessica Mlaska (GSU), Sarah Walker (GSU) and Ethan Chapman (Swathmore College). Over 500 juvenile to adult burrows were mapped during the summer and these will be investigated with a burrow camera to determine the actual number of residents. Burrow orientation is under investigation for preferences relative to solar path, prevailing wind direction and tree lines. Burrow depth and length are being investigated with ground penetrating radar and evaluated relative to tortoise maturity (using burrow mouth dimensions). Soil and underlying sediment cores have been obtained to explore substrate preference. The project will continue in 2018.


Salt Water Intrusion Research

Geologists Kelly Vance, Ph.D., Jim Reichard, Ph.D., Jacque Kelly, Ph.D., Fred Rich, Ph.D., and Brian Meyer, Ph.D. (Georgia State) are completing Year 2 of a Georgia Sea Grant Funded investigation of salt water intrusion in the surficial aquifer system of St. Catherines Island, Georgia. The project has provided invaluable practical research experience to 15 GSU undergraduates and 4 Georgia State Grad Students including a GSU alumnus. The team has drilled 17 monitoring wells ranging from 4.9 m to 14.6 m depth, extracted > 130 m of core, conducted ~ 600 m of resistivity profiles and acquired > 6 kms of new ground penetrating radar profiles to monitor changes in shallow aquifer head and salinity and to determine pathways for salt water intrusion into the shallow aquifer. Evaluation of available data suggests multiple pathways of salt water intrusion exist and the shallow hydrogeologic system is more complex than the simple fresh water lens models that are often used to describe barrier islands. This research is important to evaluate the potential for communication between the shallow and deep aquifer systems and the potential for accelerated salt water intrusion as sea level rises and shorelines retreat. The well fields created will allow continuous monitoring for many years to come and are an excellent hydrogeology and environmental geology teaching and training resource. The data acquired will allow development of recommendations for best management practices to conserve coastal groundwater resources.

Attention COSM Students!

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The College of Science and Mathematics at Georgia Southern University prepares students in baccalaureate majors and the Master of Science programs.

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