# Faculty News Briefs

### April 2009

On March 27, 2009 Professor George Avrunin gave an invited talk at the State of the Art in Testing and Analysis Day at North Carolina State University. The title of the talk was Applying Software Analysis Techniques to Healthcare.

On March 19, 2009 Professor Erin Conlon gave an invited talk in the Department of Mathematics and Statistics at Boston University. The title of the talk was *Bayesian Meta-Analysis Models for Microarray Studies.*

Professor Paul Gunnells recently gave two talks. On March 30, 2009 he spoke at the MIT Number Theory seminar, where he gave a talk entitled *Weyl Group Multiple Dirichlet Series.* On March 16, he gave a talk in the Brown Algebra seminar entitled *Elliptic Curves and Modular Forms over Q(zeta_5).* This second talk discussed a joint project with Professor Farshid Hajir, who is also a member of the department, and with Professor Dan Yasaki, a former UMass Amherst postdoc who is now at University of North Carolina at Greensboro.

Professor Panos Kevrekidis together with post-doctoral fellow George Theocharis and graduate students Kody Law and Chenyu Wang recently attended the 6th IMACS Conference on Nonlinear Waves, held during the period March 23ñ26, 2009 in Athens, GA. All four researchers delivered talks at the conference. Panos also organized a mini-symposium on nonlinear Schrˆdinger equations and their applications jointly with collaborator Ricardo Carretero of San Diego State University. Kody received a student-paper prize for his research work and presentation on vortex dynamics in Bose-Einstein condensates.

On March 17, 2009 Professor Daeyoung Kim gave a talk at the meeting of the ENAR (Eastern North American Region/International Biometric Society) in San Antonio, Texas. The title of the talk was *Simulation-based Visualization of Inference Functions.*

On March 19, 2009 Professor Rob Kusner lectured on *Moduli Spaces of CMC Surfaces and Complex Projective Structures* in the Geometry and Topology Seminar at the University of Pennsylvania.

On March 20, 2009 Professor Michael Lavine gave an invited talk in the Department of Biostatistics at Harvard University. The title of the talk was *Subjective Likelihood For An Assessment of Climate Change in the Ocean.*

### March 2009

Professor Emeritus Floyd Williams was invited to be the first speaker in a Distinguished Lecture Series at Medgar Evers College and also to speak at the New York Topology Seminar. Because the talk had information on topological deformation of black holes, it was decided that he give the same talk at the same time to both groups. Entitled *Three Tenors: Ramanujan, Rademacher, and Einstein ñ a Convergence of Their Music,* the talk was presented on February 19, 2009 in Brooklyn, NY.

Professor Robin Young recently gave four talks on his research. On November 18, 2008 he gave a talk at Georgia Institute of Technology in Atlanta entitled *On Shock-Free Periodic Solutions for the Euler Equations.* The talk described his joint work with Blake Temple concerning progress on the long-standing question of the existence of periodic solutions for gas dynamics. On December 5, 2008 he gave two talks at Pennsylvania State University. The first, entitled *Towards Shock-Free Periodic Solutions for the Euler Equations,* discussed his joint work with Blake Temple. The second was entitled *Interactions of Strong Shocks.* On January 5, 2009 Robin participated in a special session on Nonlinear Partial Differential Equations and Applications at the AMS/SIAM/MAA Joint National Meeting in Washington, DC, where he again presented his joint work with Blake Temple.

### February 2009

Professor Paul Gunnells presented the talk *On the Cohomology of Congruence Subgroups of SL(4,Z)* at the conference Automorphic Representations, Automorphic L-Functions and Arithmetic, which took place January 19ñ23, 2009 at the Research Institute for Mathematical Sciences in Kyoto, Japan.

Professor Markos Katsoulakis and Professor Bruce Turkington were invited speakers at a conference honoring Andrew J. Majda's 60th birthday, held during the period January 15ñ24, 2009 at Fudan University in Shangai, China. The title of Markosís talk was *Hierarchical and Multi-Level Coarse-Graining Methods,* and the title of Bruceís talk was *An Optimization Approach to Statistical Closure of Underresolved Hamiltonian Dynamics.* Andrew Majda is a Morse Professor at the Courant Institute of Mathematical Sciences, New York University, and a member of the National Academy of Sciences USA. He is the recipient of the National Academy of Science Prize in Applied Mathematics, the John von Neumann Prize of the Society of Industrial and Applied Mathematics, and the Gibbs Prize of the American Mathematical Society. The conference website is http://math.fudan.edu.cn/science/Conference/ICCAM/.

Professor Markos Katsoulakis was an invited speaker at the Max-Planck Institute in Leipzig Germany, where he participated in the conference on Analysis of Stochastic Surface Evolution: From Microscopic Models to Large Scale Behaviour. The conference took place during the period January 27-31, 2009, and the relevant website is http://www.mis.mpg.de/index.php?id=3309. The title of Markosís talk was *Mathematical Strategies and Error Quantification in the Coarse-Graining of Many-Body Stochastic Systems.*

On January 16, 2009 Rob Kusner delivered a talk at the Applied Math and Computational Science Colloquium at the University of Pennsylvania. His topic was *Moduli Spaces of CMC Surfaces and Complex Projective Structure.*

On January 15, 2009 Professor Michael Lavine gave a seminar talk in the Department of Statistics and Applied Probability at UC Santa Barbara. The title of his talk was *Subjective Likelihood.* He also participated in a workshop held at NCEAS, the National Center for Ecological Analysis and Synthesis, during the period January 13ñ17, 2009. The title of his talk was *Inference for Mechanistic Models.*

In November 2008 Professor William Meeks was one of seven speakers at the annual Current Developments in Mathematics Conference at Harvard University. In December 2008 he gave a colloquium talk at the University of Notre Dame, and in January 2009 he visited the University of Warwick, where he gave a colloquium talk and a talk in the analysis seminar.

Professor Franz Pedit will give a colloquium talk at Notre Dame University on February 27, 2009. The title of his talk is *Flowing Constant Mean Curvature Cylinders into Tori.*

Professor Eric Sommers gave a talk entitled *A Duality for Nilpotent Orbits* at the Workshop on Lie Groups, Lie Algebras, and Their Representations at UC-Riverside. The workshop took place during the period January 17ñ18, 2009.

On January 2, 2009 Professor HongKun Zhang gave a two-hour seminar talk at the Courant Institute of Mathematical Sciences, New York University. The title of her talk was *Correlations Decay by Coupling in Billiards.*

### January 2009

Professor Franz Pedit gave a one-hour plenary talk entitled *Global Aspects of Integrable Surface Geometry* at the 16th Osaka City University International Academic Symposium 2008 on Riemann Surfaces, Harmonic Maps and Visualization. The symposium took place during the period December 15ñ20, 2008.

Professor Eric Sommers gave a talk entitled *A Duality for Nilpotent Orbits* at the Taipei Workshop for Lie Theory at the Academia Sinica in Taipei, Taiwan. The workskop took place during the period December 28ñ30, 2008.

Professor Jenia Tevelev gave talks at the Brown University Algebraic Geometry Seminar on November 21, 2008 and at the MIT-Harvard Algebraic Geometry Seminar on December 2, 2008. The title of both talks was *Effective Divisors and Curves on Moduli Spaces of Curves.*

### December 2008

On November 14, 2008 Professor Paul Gunnells gave a talk entitled *Weyl Group Multiple Dirichlet Series* in the Everytopic seminar at Brandeis University.

On November 13, 2008 Professor Daeyoung Kim gave an invited talk in the Statistics and Probability Seminar in the Department of Mathematics and Statistics at Boston University. The title of his talk was *Mixture Inference at the Weak Identifiability.*

In November 2008 Professor Rob Kusner delivered two lectures at Notre Dame University in South Bend, Indiana. His colloquium lecture was entitled *Triangulations of Surfaces, Flat Structures, and Abelís Theorem,* and his Felix Klein Seminar lecture the following day was entitled *Moduli Spaces of Complex Projective Structures and CMC Surfaces.* The latter talk was also the topic of a lectures series by Rob at GANG in November.

Professor Michael Lavine recently joined the editorial board of the Journal of Probability and Statistics, a new, on-line journal.

Professor Franz Pedit gave an invited plenary talk at Osaka City University International Academic Symposium on *Riemann Surfaces, Harmonic Maps and Visualization,* which took place during the period December 15ñ20, 2008.

On November 13, 2008 Professor Emeritus Floyd Williams gave an invited colloquium lecture at Baylor University in Waco, Texas. The title of his lecture was *Three Tenors: Ramanujan, Rademacher, and Einstein ó a Convergence of Their Music.*