| Institute for Mathematics and its Applications University of Minnesota 114 Lind Hall 207 Church Street SE Minneapolis, MN 55455 |
Web: http://www.ima.umn.edu |
Email: ima-staff@ima.umn.edu |
Telephone: (612) 624-6066 |
Fax: (612) 626-7370
Additional newsletters available at http://www.ima.umn.edu/newsletters
Additional newsletters available at http://www.ima.umn.edu/newsletters
IMA Newsletter #403
May 2010
2009-2010 Program
See http://www.ima.umn.edu/2009-2010/ for a full description of the 2009-2010 program on Complex Fluids and Complex Flows.
News and Notes
- Former IMA Postdoctoral Fellow Trachette
Jackson will be
recipient of the 2010 Blackwell-Tapia Prize. This prize is
awarded every second year in honor of the legacy of David H.
Blackwell and Richard A. Tapia, and recognizes a mathematical
scientist who has made significant contributions to research in
his or her field of expertise, and who has served as a role
model for mathematical scientists and students from
under-represented minority groups.
Trachette Jackson is Professor of Mathematics at the University of Michigan where she has been since 2002. In 2003 she received the Sloan Foundation Research Fellowship. Professor Jackson is one of the leading researchers in mathematical biology. Her main research focus is mathematical modeling of cancer.
- Irina Mitrea will serve a 2-year term as IMA Associate Director starting September 1, 2010. Professor Mitrea's main research areas are harmonic analysis and partial differential equations.
- IMA Director Fadil Santosa has been named a SIAM Fellow "for contributions to the mathematics of inverse problems and for advancing the application of mathematics in industry." The Society for Industrial and Applied Mathematics (SIAM) is the premier international organization devoted to applied mathematics and computational science.
- 2010-2011 IMA Participating Institutions Conferences
- 2009-2010 IMA Participating Institutions Conferences
Schedule
Monday, May 3
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Tuesday, May 4
| 10:45am-11:15am | Coffee break | Lind Hall 400 | ||
| 11:15am-12:15pm | The role of maximum dissipation principle in numerical computations for complex fluids | Yunkyong Hyon (University of Minnesota) | Lind Hall 305 | PS |
Wednesday, May 5
| 1:00pm-3:00pm | IMA Spring Picnic | Lind Hall 400 |
Thursday, May 6
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Friday, May 7
| 10:45am-11:15am | Coffee break | Lind Hall 400 | ||
| 1:25pm-2:25pm | Identifying and quantifying uncertainty in computational models | Genetha Anne Gray (Sandia National Laboratories) | Vincent Hall 570 | IPS |
Monday, May 10
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Tuesday, May 11
| 10:45am-11:15am | Coffee break | Lind Hall 400 | ||
| 11:15am-12:15pm | Closed - form solutions of PDEs through functional framework | Samuel Segun Okoya (Obafemi Awolowo University) | Lind Hall 305 | PS |
Wednesday, May 12
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Thursday, May 13
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Friday, May 14
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Monday, May 17
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Tuesday, May 18
| 10:45am-11:15am | Coffee break | Lind Hall 400 | ||
| 11:15am-12:15pm | Kinetic-fluid boundary layers and ppplications to hydrodynamic limits of Boltzmann equation | Ning Jiang (Courant Institute of Mathematical Sciences) | Lind Hall 305 | PS |
Wednesday, May 19
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Thursday, May 20
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Friday, May 21
| 10:45am-11:15am | Coffee break | Lind Hall 400 | ||
| 11:15am-12:15pm | On the soliton dynamics under a slowly varying medium for generalized KdV equations [Note change of date] | Claudio Muñoz (Université Versailles/Saint Quentin-en-Yvelines) | Lind Hall 305 | PS |
Monday, May 24
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Tuesday, May 25
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Wednesday, May 26
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Thursday, May 27
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Friday, May 28
| 10:45am-11:15am | Coffee break | Lind Hall 400 |
Monday, May 31
| All Day | Memorial Day. The IMA is closed |
Event Legend: |
|
| IPS | Industrial Problems Seminar |
| PS | IMA Postdoc Seminar |
Abstracts
| Genetha Anne Gray (Sandia National Laboratories) | Identifying and quantifying uncertainty in computational models |
| Abstract: Despite their obvious advantages, computer simulations also introduce many challenges. Uncertainties must be identified and quantified in order to guarantee some level of predictive of a computational model. Calibration techniques can be applied to both improve the model and to curtail the loss of information caused by using simulations in place of the actual system. Evaluating and calibrating a computer model is dependent on three main components: experimental data, model parameters, and algorithmic techniques. Data is critical as it defines reality, and inadequate data can render model evaluation procedures useless. Model parameters should be studied to determine which affect the predictive capabilities of model and which do not. Those that do are subject to calibration. Techniques for model evaluation and calibration should both sufficiently sample the design space and limit the computational burden. In this talk, we will discuss the problems inherent in model calibration and validation processes in terms of data, parameters and algorithms. In particular, we will focus on suitable techniques of optimization and statistics for some specific numerical models from the areas of electrical engineering, medicine, and groundwater control. We will demonstrate some successful and some not so successful approaches. | |
| Yunkyong Hyon (University of Minnesota) | The role of maximum dissipation principle in numerical computations for complex fluids |
| Abstract: I will talk about the general energetic variational approaches for hydrodynamic systems of complex fluids. In these energetic variational approaches, the least action principle (LAP) with action functional gives the Hamiltonian parts (conservative force) of the hydrodynamic systems, and the maximum/minimum dissipation principle (MDP), i.e., Onsager's principle, gives the dissipative parts (dissipative force) of the systems. When we combine the two systems derived from the two different principles through the force balance law, we obtain a whole coupled nonlinear system of equations satisfying the dissipative energy laws. Also, I will discuss the important roles of MDP in designing numerical method for computations of hydrodynamic system in complex fluids. The MDP is employed in the reformulated dissipation to obtain the dissipative force for the hydrodynamic system. The systems are consistent with the Hamiltonian parts which are derived from LAP. This procedure allows the usage of lower order element (a continuous $C^0$ finite element) in numerical method to solve the system rather than high order elements, and at the same time preserves the dissipative energy law. Finally, I will show some numerical results of the free interface motion in the mixture of two different fluids. | |
| Ning Jiang (Courant Institute of Mathematical Sciences) | Kinetic-fluid boundary layers and ppplications to hydrodynamic limits of Boltzmann equation |
| Abstract: In a bounded domain with smooth boundary (which can be considered as a smooth sub-manifold of R3), we consider the Boltzmann equation with general Maxwell boundary condition---linear combination of specular reflection and diffusive absorption. We analyze the kinetic (Knudsen layer) and fluid (viscous layer) coupled boundary layers in both acoustic and incompressible regimes, in which the boundary layers behave significantly different. The existence and damping properties of these kinetic-fluid layers depends on the relative size of accommodation number and Kundsen number, and the differential geometric property of the boundary (the second fundamental form.) As applications, first we justify the incompressible Navier-Stokes-Fourier limit of the Boltzmann equation with Dirichlet, Navier, and diffusive boundary conditions respectively, depending on the relative size of accommodation number and Kundsen number. Using the damping property of the boundary layer in acoustic regime, we proved the convergence is strong. The second application is that we derive and justified the higher order acoustic approximation of the Boltzmann equation. This is a joint work with Nader Masmoudi. | |
| Claudio Muñoz (Université Versailles/Saint Quentin-en-Yvelines) | On the soliton dynamics under a slowly varying medium for generalized KdV equations [Note change of date] |
| Abstract: We consider the problem of the soliton propagation, in a slowly varying medium, for a generalized Korteweg - de Vries equations (gKdV). We study the effects of inhomogeneities on the dynamics of a standard soliton. We prove that slowly varying media induce on the soliton solution large dispersive effects in large time. Moreover, unlike gKdV equations, we prove that there is no pure-soliton solution in this regime. | |
| Samuel Segun Okoya (Obafemi Awolowo University) | Closed - form solutions of PDEs through functional framework |
| Abstract: The functional framework approach to PDE was developed by Rubel to study some problems of Mathematical Physics. It identifies a separation of variables on a domain in the appropriate Euclidean space. I'll indicate progress on some related analytical solutions of some models which arises in real life. Theorems will be stated and proved. Some corresponding results of Rubel are deduced as the limiting cases when some emerging parameters are equal to zero. | |
Visitors in Residence
| Dhanapati Adhikari | Oklahoma State University | 5/31/2010 - 6/6/2010 |
| Alexander Alexeev | Georgia Institute of Technology | 5/31/2010 - 6/5/2010 |
| Anders Peter Andersen | Technical University of Denmark | 5/31/2010 - 6/5/2010 |
| Arezoo Ardekani | Massachusetts Institute of Technology | 5/31/2010 - 6/5/2010 |
| Nusret Balci | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Tsevi Beatus | Cornell University | 5/31/2010 - 6/5/2010 |
| Jennifer Beichman | University of Michigan | 9/1/2009 - 5/31/2010 |
| Gordon Joseph Berman | Princeton University | 5/31/2010 - 6/5/2010 |
| Adam Boucher | University of New Hampshire | 5/31/2010 - 6/6/2010 |
| Luca Brandt | Royal Institute of Technology (KTH) | 5/31/2010 - 6/7/2010 |
| Kenny Breuer | Brown University | 5/31/2010 - 6/4/2010 |
| Maria-Carme T. Calderer | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Chongsheng Cao | Florida International University | 5/15/2010 - 5/23/2010 |
| Chi Hin Chan | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Xianjin Chen | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Stephen Childress | New York University | 5/10/2010 - 6/6/2010 |
| Luis H. Cisneros | University of Arizona | 5/31/2010 - 6/5/2010 |
| Fredric S Cohen | Rush University Medical Center | 5/31/2010 - 6/5/2010 |
| Itai Cohen | Cornell University | 5/31/2010 - 6/6/2010 |
| Aline Cotel | University of Michigan | 5/31/2010 - 6/5/2010 |
| Darren G. Crowdy | Imperial College London | 5/31/2010 - 6/3/2010 |
| Zhenlu Cui | Fayetteville State University | 5/31/2010 - 6/5/2010 |
| Domenico D'Alessandro | Iowa State University | 4/15/2010 - 6/30/2010 |
| Mark Denny | Stanford University | 5/31/2010 - 6/4/2010 |
| Antonio DeSimone | International School for Advanced Studies (SISSA/ISAS) | 5/31/2010 - 6/5/2010 |
| Charles R. Doering | University of Michigan | 8/15/2009 - 6/10/2010 |
| Deborah Edmund | University of Michigan | 5/31/2010 - 6/4/2010 |
| Robert S. Eisenberg | Rush University Medical Center | 5/31/2010 - 6/5/2010 |
| Jeff D. Eldredge | University of California, Los Angeles | 5/31/2010 - 6/5/2010 |
| Acmae El Yacoubi | Cornell University | 5/30/2010 - 6/4/2010 |
| Randy H. Ewoldt | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Aseel Farhat | University of California, Irvine | 5/15/2010 - 5/23/2010 |
| Lisa Fauci | Tulane University | 5/31/2010 - 6/6/2010 |
| Frank E. Fish | West Chester University | 5/31/2010 - 6/5/2010 |
| Hermes Gadêlha | University of Oxford | 5/30/2010 - 6/6/2010 |
| Eamonn Andrew Gaffney | University of Oxford | 5/31/2010 - 6/6/2010 |
| Ramiro Godoy-Diana | Centre National de la Recherche Scientifique (CNRS) | 5/31/2010 - 6/5/2010 |
| Daniel Ivan Goldman | Georgia Institute of Technology | 5/31/2010 - 6/5/2010 |
| Michael D. Graham | University of Wisconsin | 5/31/2010 - 6/5/2010 |
| Genetha Anne Gray | Sandia National Laboratories | 5/6/2010 - 5/8/2010 |
| Andong He | Pennsylvania State University | 5/30/2010 - 6/5/2010 |
| Anette Peko Hosoi | Massachusetts Institute of Technology | 5/31/2010 - 6/5/2010 |
| David Hu | Georgia Institute of Technology | 5/31/2010 - 6/5/2010 |
| Xianpeng Hu | University of Pittsburgh | 5/31/2010 - 6/5/2010 |
| Vera Mikyoung Hur | University of Illinois at Urbana-Champaign | 2/18/2010 - 5/28/2010 |
| Yunkyong Hyon | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Mark Iwen | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Pieter Jan Antoon Janssen | University of Wisconsin | 5/31/2010 - 6/5/2010 |
| Srividhya Jeyaraman | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Lijian Jiang | University of Minnesota | 9/10/2008 - 8/31/2010 |
| Ning Jiang | Courant Institute of Mathematical Sciences | 5/18/2010 - 5/19/2010 |
| Michael S. Jolly | Indiana University | 5/15/2010 - 5/18/2010 |
| Mihailo Jovanovic | University of Minnesota | 9/11/2009 - 6/10/2010 |
| Ning Ju | Oklahoma State University | 1/4/2010 - 6/30/2010 |
| Sunghwan (Sunny) Jung | Virginia Polytechnic Institute and State University | 5/31/2010 - 6/3/2010 |
| Eva Kanso | University of Southern California | 5/31/2010 - 6/5/2010 |
| Anthony José Kearsley | National Institute of Standards and Technology | 4/29/2010 - 5/1/2010 |
| Markus Keel | University of Minnesota | 7/21/2008 - 6/30/2010 |
| Scott David Kelly | University of North Carolina - Charlotte | 5/31/2010 - 6/5/2010 |
| Kimberly D. Kendricks | Central State University | 5/10/2010 - 7/19/2010 |
| Hyejin Kim | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Pawel Konieczny | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Amy Lang | University of Alabama | 5/31/2010 - 6/5/2010 |
| Adam Larios | University of California, Irvine | 5/20/2010 - 5/29/2010 |
| Ronald G. Larson | University of Michigan | 5/31/2010 - 6/5/2010 |
| Eric Lauga | University of California, San Diego | 5/31/2010 - 6/4/2010 |
| Anita Layton | Duke University | 5/31/2010 - 6/5/2010 |
| Chiun-Chang Lee | National Taiwan University | 10/22/2009 - 6/30/2010 |
| Sanghyuk Lee | Seoul National University | 5/2/2010 - 5/8/2010 |
| David Lentink | Wageningen University and Research Center | 5/31/2010 - 6/5/2010 |
| Rachel Levy | Harvey Mudd College | 5/31/2010 - 6/5/2010 |
| Marta Lewicka | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Congming Li | University of Colorado | 1/11/2010 - 6/15/2010 |
| Yongfeng Li | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Zhi (George) Lin | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Bin Liu | New York University | 5/31/2010 - 6/5/2010 |
| Chun Liu | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Jerome Loheac | Université de Nancy I (Henri Poincaré) | 5/31/2010 - 6/6/2010 |
| Ellen K. Longmire | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Evelyn Manalo Lunasin | University of Arizona | 5/25/2010 - 6/12/2010 |
| Enkeleida Lushi | New York University | 5/31/2010 - 6/5/2010 |
| Krishnan Mahesh | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Kara Lee Maki | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Vasileios Maroulas | University of Minnesota | 9/1/2008 - 7/31/2010 |
| Hassan Masoud | Georgia Institute of Technology | 5/31/2010 - 6/5/2010 |
| Anna L. Mazzucato | Pennsylvania State University | 1/12/2010 - 6/11/2010 |
| Gareth Huw Mckinley | Massachusetts Institute of Technology | 5/31/2010 - 6/4/2010 |
| Laura Ann Miller | University of North Carolina | 5/31/2010 - 6/5/2010 |
| Irina Mitrea | Worcester Polytechnic Institute | 5/2/2010 - 5/6/2010 |
| Michal Mlejnek | Corning Incorporated | 5/31/2010 - 6/5/2010 |
| Kamran Mohseni | University of Colorado | 5/31/2010 - 6/5/2010 |
| Yoichiro Mori | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Claudio Muñoz | Université Versailles/Saint Quentin-en-Yvelines | 5/19/2010 - 5/24/2010 |
| Hoa Nguyen | Tulane University | 5/31/2010 - 6/6/2010 |
| Monika Nitsche | Ohio State University | 5/31/2010 - 6/5/2010 |
| Dongjuan Niu | Capital Normal University | 4/1/2010 - 6/15/2010 |
| Clara O'Farrell | California Institute of Technology | 5/30/2010 - 6/5/2010 |
| Samuel Segun Okoya | Obafemi Awolowo University | 2/15/2010 - 5/15/2010 |
| Sarah Olson | Tulane University | 5/31/2010 - 6/5/2010 |
| Yizhar Or | Technion-Israel Institute of Technology | 5/31/2010 - 6/6/2010 |
| Cecilia Ortiz-Duenas | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Hans G. Othmer | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Jifeng Peng | University of Alaska | 5/31/2010 - 6/5/2010 |
| Manu Prakash | Harvard University | 5/31/2010 - 6/5/2010 |
| Juan Mario Restrepo | University of Arizona | 8/11/2009 - 6/15/2010 |
| Leif Gibbens Ristroph | Cornell University | 5/31/2010 - 6/5/2010 |
| Rolf Ryham | Rice University | 5/13/2010 - 6/15/2010 |
| David Saintillan | University of Illinois at Urbana-Champaign | 5/31/2010 - 6/5/2010 |
| Fadil Santosa | University of Minnesota | 7/1/2008 - 6/30/2011 |
| Arnd Scheel | University of Minnesota | 9/1/2009 - 6/30/2010 |
| William W. Schultz | University of Michigan | 5/28/2010 - 6/5/2010 |
| George R Sell | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Tsvetanka Sendova | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Shuanglin Shao | University of Minnesota | 9/1/2009 - 8/31/2010 |
| Michael J. Shelley | New York University | 5/31/2010 - 6/5/2010 |
| Henry Shum | University of Oxford | 5/31/2010 - 6/5/2010 |
| Jake Socha | Virginia Polytechnic Institute and State University | 5/31/2010 - 6/3/2010 |
| Saverio Eric Spagnolie | University of California, San Diego | 5/31/2010 - 6/6/2010 |
| Daniel Spirn | University of Minnesota | 9/8/2009 - 6/1/2010 |
| Panagiotis Stinis | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Wanda Strychalski | University of California, Davis | 5/31/2010 - 6/5/2010 |
| Susan S. Suarez | Cornell University | 5/31/2010 - 6/5/2010 |
| Vladimir Sverak | University of Minnesota | 9/1/2009 - 6/30/2010 |
| Daniel See-Wai Tam | Massachusetts Institute of Technology | 5/31/2010 - 6/5/2010 |
| Russ Tedrake | Massachusetts Institute of Technology | 5/31/2010 - 6/5/2010 |
| Jean-Luc Thiffeault | University of Wisconsin | 9/1/2009 - 6/30/2010 |
| Benjamin Thiria | École Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI) | 5/30/2010 - 6/6/2010 |
| Becca Thomases | University of California, Davis | 2/9/2010 - 6/12/2010 |
| Giordano Tierra Chica | University of Sevilla | 4/6/2010 - 6/15/2010 |
| Edriss Saleh Titi | University of California | 3/28/2010 - 6/18/2010 |
| Chad Michael Topaz | Macalester College | 9/1/2009 - 6/29/2010 |
| Marius Tucsnak | Université de Nancy I (Henri Poincaré) | 5/30/2010 - 6/6/2010 |
| Patrick Theodore Underhill | Rensselaer Polytechnic Institute | 5/31/2010 - 6/5/2010 |
| Steven Vogel | Duke University | 5/31/2010 - 6/5/2010 |
| Shawn W. Walker | New York University | 5/30/2010 - 6/5/2010 |
| Changyou Wang | University of Kentucky | 9/1/2009 - 6/15/2010 |
| Jane Wang | Cornell University | 5/31/2010 - 6/5/2010 |
| Xiaoming Wang | Florida State University | 1/5/2010 - 5/14/2010 |
| Paul Webb | University of Michigan | 5/31/2010 - 6/5/2010 |
| Nathaniel Whitaker | University of Massachusetts | 5/31/2010 - 6/5/2010 |
| Sijue Wu | University of Michigan | 9/1/2009 - 6/5/2010 |
| Wei Xiong | University of Minnesota | 9/1/2008 - 8/31/2010 |
| Jin Xu | Shanghai University of Traditional Chinese Medicine | 12/9/2009 - 6/9/2010 |
| Sheng Xu | Southern Methodist University | 5/31/2010 - 6/5/2010 |
| Xiang Xu | Pennsylvania State University | 1/13/2010 - 6/13/2010 |
| Jeannette Yen | Georgia Institute of Technology | 5/31/2010 - 6/5/2010 |
| Tsuyoshi Yoneda | University of Minnesota | 9/4/2009 - 8/31/2010 |
| Jun Zhang | New York University | 5/31/2010 - 6/6/2010 |
| Zhifei Zhang | Beijing (Peking) University | 2/15/2010 - 5/14/2010 |
| Weigang Zhong | University of Minnesota | 9/8/2008 - 9/30/2010 |
| Qiang Zhu | University of California, San Diego | 5/31/2010 - 6/5/2010 |
Legend:
Postdoc or Industrial Postdoc
Long-term Visitor
IMA Affiliates:
Arizona State University, Boeing, Corning Incorporated, ExxonMobil, Ford, General Motors, Georgia Institute of Technology, Honeywell, IBM, Indiana University, Iowa State University, Kent State University, Korea Advanced Institute of Science and Technology (KAIST), Lawrence Livermore National Laboratory, Lockheed Martin, Los Alamos National Laboratory, Medtronic, Michigan State University, Michigan Technological University, Microsoft Research, Mississippi State University, Motorola, Northern Illinois University, Ohio State University, Pennsylvania State University, Portland State University, Purdue University, Rice University, Rutgers University, Sandia National Laboratories, Schlumberger Cambridge Research, Schlumberger-Doll, Seoul National University, Siemens, Telcordia, Texas A & M University, University of Central Florida, University of Chicago, University of Delaware, University of Houston, University of Illinois at Urbana-Champaign, University of Iowa, University of Kentucky, University of Maryland, University of Michigan, University of Minnesota, University of Notre Dame, University of Pennsylvania, University of Pittsburgh, University of Tennessee, University of Wisconsin, University of Wyoming, US Air Force Research Laboratory, Wayne State University, Worcester Polytechnic Institute