Digest of the Non Linear Science Network, Volume 03, Number 08 May 1, 2003 Today's editor: Angel Jorba Today's topics: Fourth Geoffrey J. Butler Memorial Conference in Alberta Conference on Dynamical Systems and Differential Equations Conference on Hydrodynamic Stability and Flow Control Workshop on Semiconductors and Biological Channels Faculty Position at University of Groningen Postdoctoral Position at University of Wyoming PhD Fellowship at Ecole Nationale des Ponts et Chaussees Contents, Journal of Nonlinear Science, 13:3 Submissions to nls-net must be addressed to: Comments and suggestions are also welcome. General information about nls-net can be found at: http://www.maia.ub.es/cgi-bin/mailman/listinfo/nls-net/ This is a service created and maintained in collaboration with the American Institute of Mathematical Sciences (AIMS) http://www.aimsciences.org/ ------ Subject: Fourth Geoffrey J. Butler Memorial Conference in Alberta From: kuang Date: Tue, 15 Apr 2003 07:46:32 -0700 Hi, Can you please advertise the following meeting for researchers and students in Differential Equations and Mathematical Biology? This conference is in honor of the memory of our former colleague Geoff Butler. It will also celebrate the career and retirement of Paul Waltman of Emory University. Thanks. Yang http://conley.math.ualberta.ca/butler.html ------ Subject: Conference on Dynamical Systems and Differential Equations From: "Hu_Shouchuan" Date: Tue, 29 Apr 2003 21:29:47 -0500 First Announcement AIMS' Fifth International Conference on Dynamical Systems and Differential Equations, California State Polytechnic University, Pomona (40 miles east of Los Angeles), June 16 - 19, 2004. Sponsors: American Institute of Mathematical Sciences (AIMS) and Cal Polytech Pomona. Topics: the conference covers all the major research areas in analysis and dynamics. Equally emphasized are real-world applications in terms of modeling and computations. Description: The conference will provide a unique international forum for the international community of mathematicians and scientists working in analysis, differential equations, dynamical systems, and their applications to real world problems in the forms of modeling and computation. The aim of this conference is to bring together the worldwide senior experts and young researchers as well to this beautiful city, Pomona, CA, to report recent achievements, exchange ideas, and address future trends of research, in a relaxing but stimulating environment. Format: There will be one-hour plenary talks, 30-minute special session talks, and 20-minutes contributed talks. Organizing Committee: Ioana Mihaila, Martin Nakashima, Claudia Pinter-Lucke, Stephen Wirkus, Weiqing Xie (Chair, wxie@csupomona.edu). Scientific Committee: Jerry Bona, Shouchuan Hu (Chair, shh209f@smsu.edu), Xin Lu (Coordinator: lux@uncwil.edu), Wei-Ming Ni, Mitsuharu Otani, Roger Temam, Kak Lay Teo. Deadlines: Early registration and abstract submission: March 1, 2004. Proceedings: The conference proceedings will be published by AIMS-Press. Funding: Some limited funding from NSF is expected to support graduate students and young researchers. Information: How to submit abstracts and register, housing, deadlines, plenary speakers, special sessions, and more details will be posted at http://AiMSciences.org. For local information, contact Dr. W. Xie. To organize a special session, contact Dr. S. Hu. If you are interested, we can help you become a host for a future conference in this series. For this matter, you may contact Dr. S. Hu. ------ Subject: Conference on Hydrodynamic Stability and Flow Control From: Peter Schmid Date: Thu, 17 Apr 2003 18:07:43 +0200 Invitation to attend the SUMMER RESEARCH CONFERENCE ON HYDRODYNAMIC STABILITY AND FLOW CONTROL sponsored by the AMS-SIAM-IMS Park City, Utah, July 5-10, 2003 The summer research conference is intended to bring together scientists in the areas of applied mathematics, fluid mechanics, control engineering and related fields to discuss and present state-of-the-art techniques and challenging problems in hydrodynamic stability theory and flow control. Proceedings will be published following the conference. Partial list of invited speakers: B. Bamieh (Santa Barbara,USA) T. Bewley (San Diego, USA) J.-M. Chomaz (Palaiseau, France) M. Gunzburger (Tallahassee, USA) M. Hogberg (Stockholm, Sweden) P. Huerre (Palaiseau, France) Interested participants are encouraged to contact Peter Schmid at pjs@amath.washington.edu ------ Subject: Workshop on Semiconductors and Biological Channels From: Donna Bower Date: Thu, 17 Apr 2003 11:51:42 -0400 A Workshop on "Analysis and Numerics for Modeling Semiconductor Devices and Biological Channels" will be held at the Center for Scientific Computation And Mathematical Modeling (CSCAMM) located at the University of Maryland, College Park on May 19-23, 2003 SCIENTIFIC CONTENT. The last few years have witnessed rapid developments in semiconductor mathematical research including modeling, analysis and numerical simulations of semiconductor device equations, ranging from the Schroedinger equation for the evolution of the electron wave function to the drift-diffusion system for the evolution of the 'electron gas' which is close to a Maxwellian equilibrium. Like semiconductor devices, many proteins and biological systems are also devices in exactly the engineering sense of the word. These devices have a definite function described by an approximate device equation that is valid ONLY when the device is working as designed. Devices have complex internal structure that allows them to have a reasonably robust and simple equation and much of biological research is really an inverse problem to determine the device equation. The diversity of physical architectures for semiconductor devices and biological ionic channels as well as the mathematical models they are based on has proven to be a fruitful ground for interaction of researchers from different disciplines in physics, biology, engineering, mathematics and scientific computation. We plan to revisit existing intersections and to explore future directions in modeling, analysis and numerics of classical and quantum transport in semiconductor devices, and classical transport in biological ionic channels, and related topics. A limited number of openings are available. To apply please RSVP at: http://www.cscamm.umd.edu/programs/smc03/rsvp.htm ADDITIONAL INFORMATION is posted at http://www.cscamm.umd.edu/programs/smc03 email: smc03@cscamm.umd.edu ------ Subject: Faculty Position at University of Groningen From: A.E.P. Veldman Date: Tue, 15 Apr 2003 13:04:42 +0200 Tenure-track position for assistant professor in Computational Engineering and Scientific Computing (vacancy number 203124) Faculty of Mathematics and Natural Sciences, University of Groningen The Faculty of Mathematics and Natural Sciences is offering young, talented researchers positions which are on the same level as those of assistant professor via the tenure-track system. Researchers are given the opportunity to develop their own line of research within a particular field. The faculty's career policy is characterised by flexible personnel management with a focus on the individual. Academic achievements are seen as being central to the academic career, and ample opportunities for professional development and supplementary training and education are offered. Arrangements for training in the area of teaching will be made with all new employees. The policy is directed at increasing the number of women in academic staff positions. Career advancement policies for women will also be improved, and women will be actively encouraged to develop their careers. The appointment will be on a temporary basis for a maximum of 6 years. On completion of 5 years of employment there will be an assessment of performance based on established criteria. If the outcome of the assessment is positive, the assistant professor will be promoted to the rank of associate professor with tenure. There will be another assessment at the end of a further 5-year period during which a full professorial appointment will be discussed. The vacant position will be embedded in the section Computational Mechanics and Numerical Mathematics of the Institute for Mathematics and Computing Science. The research programme of this section concentrates on numerical simulation of fluid dynamics and transport phenomena (Computational Fluid Dynamics CFD). Research is focussed on basic advancement of numerical algorithms (discretization methods, sparse matrix solvers). Through extensive cooperation with external research groups these methods are made available to advance knowledge in other (applied) areas of science and technology (especially free-surface flow, bio-fluid dynamics and turbulence). Personal profile: * A PhD degree in the field of computational engineering and scientific computing. * Two or more years of experience in a post-doctoral research position at another educational institution abroad, or in industry or another multi-disciplinary environment. * Excellent research, teaching and organisational qualities. * A substantial list of publications in international journals and leading conference proceedings. * The ability to attract external funding for your research. * Fluency in the English language. Knowledge of the Dutch language or the willingness to learn this language within a time frame of two years is expected. Tasks: * To teach courses in mathematics at graduate and undergraduate level. * To participate in the organization of the teaching. * To conduct research leading to publications in journals of high standing. * To (co-)supervise graduate students. * To attract external research funds. * To contribute to management and organization of the department. The University of Groningen can offer you: A salary dependent on qualifications and work experience up to a maximum of Euro 4490,= gross per month for a full-time job (12 monthly payments), an 8% holiday allowance, and participation in a pensionscheme for government employees. Further information: Please contact: prof dr AEP Veldman, Professor in Computational Mechanics and Numerical Mathematics, phone +31-503633988, fax +31-503633800, email: veldman@math.rug.nl, URL:http://www.math.rug.nl/~veldman Applications: Applications accompanied by a curriculum vitae, list of publications and suggested names of 3 references should be sent (before May 14, 2003) to the Head of the Personnel Department, University of Groningen, P.O. Box 72, 9700 AB Groningen, The Netherlands, or by e-mail: vmp@bureau.rug.nl . Please indicate vacancy number 203124 on the letter and the envelope. ------ Subject: Postdoctoral Position at University of Wyoming From: Sivaguru Sritharan Date: Fri, 18 Apr 2003 09:59:04 -0600 Postdoctoral Research Fellowship in Numerical Simulation of Fluid Flow Applications are invited for a Postdoctoral Research Assistant position in the Department of Mathematics of the University of Wyoming in Laramie, with an expected starting date in September 2003. The successful applicant will work closely with the new Director of the Institute for Scientific Computing (ISC) and other members of the Department in developing simulation software for large-scale modeling of oil reservoirs. The ideal candidate should have a strong background in fluid dynamics and numerical modeling. Expertise in areas such as free boundary problems, flows in porous media, level set methods and multi-phase flows are strongly desirable. Proficiency in the use of distributed parallel computers and actual programming under the Message-Passing Interface (MPI) paradigm are valuable assets. Suitable candidates who already hold a Ph.D in any relevant field or who expect to obtain one by the appointment starting date are encouraged to apply. The applicant must have their Ph.D. by the time of the appointment. The position will remain open until filled. The initial appointment will be for one year, with the possibility of renewal for additional years based on performance. Salary will be commensurate with experience. Applicants should send a curriculum vitae and a brief statement of research interests to Dr. S. S. Sritharan, Head, Department of Mathematics, University of Wyoming, P.O. Box 3036, Laramie, WY 82071-3036, (Fax: 307-766-4221) or preferably in electronic format via email to sri@uwyo.edu. The University of Wyoming is an Equal Employment Opportunity/Affirmative Action Employer. We welcome applications from women and other underrepresented groups. ------ Subject: PhD Fellowship at Ecole Nationale des Ponts et Chaussees From: Alexandre Ern Date: Thu, 24 Apr 2003 12:18:40 +0200 Applications are invited for a PhD fellowship in computational mechanics at Ecole Nationale des Ponts et Chaussees near Paris (www.enpc.fr). Multiphase transport in porous media is relevant in many engineering applications. Examples include oil recovery, pollutant transport in contaminated soils and the drying of a porous medium. The aim of the PhD research project is to perform a critical analysis of several engineering models for advective and diffusive transport in multiphase porous media. Such analysis relies on homogenization techniques in a periodic framework. In order to become quantitative, it must be completed by three-dimensional numerical simulations of the partial differential equations governing the flow at the microscopic level. Three situations of increasing complexity shall be considered: (i) advective and diffusive transport in single phase flow in order to analyze the relative importance of advective phenomena and the structure of the diffusion-dispersion tensor, (ii) advective transport in a two-phase flow in order to assess the validity domain of Richards equation, (iii) advective and diffusive transport in two-phase flow. The candidate should have a graduate degree (MSc or French DEA) in computational mechanics. Programming skills as well as a background in the numerical solution of partial differential equations and in subsurface flow modelling would be important assets. Working knowledge of French is not required a priori. The position will be for three years starting in the Fall 2003. The PhD fellowship is approximately 1400 euros/month and includes basic health coverage. The PhD student will be located at the Applied Mathematics laboratory CERMICS of ENPC (cermics.enpc.fr) and will be supervised by Prof. Alexandre Ern from CERMICS and Prof. Luc Dormieux from Materials and Structural Mechanics laboratory LMSGC also at ENPC (www.enpc.fr/cercso/lmsgc). Application are reviewed by a committee with two possible deadlines on 31 May and 31 August. Application forms may be obtained by contacting Mrs. Marie-Claude Mansat (mansat@mail.enpc.fr). Scientific questions may be directed to Prof. A. Ern (ern@cermics.enpc.fr). ------ Subject: Contents, Journal of Nonlinear Science, 13:3 From: "William Payne" Date: Tue, 15 Apr 2003 13:32:35 -0400 Journal of Nonlinear Science, Vol. 13, No. 3 Page Title Author 265 Spindle Speed Variation for the Sri Namachchivaya, N. Suppression of Regenerative Chatter Beddini, R. 289 Travelling Waves and Numerical Liang, D. Approximations in a Reaction Wu, J. Advection Diffusion Equation with Nonlocal Delayed Effects 311 Convergence Results for a Coarsening Gallay,T. Model Using Global Linearization Mielke, A.