Digest of the Non Linear Science Network, Volume 11, Number 12 July 1, 2011 Editor: Angel Jorba Topics: Postdoc Position, Univ of Groningen Lectureships in Appl Maths, Cardiff Univ PhD Position, Comp Seismology, ETH-Zurich Contents, Physica D: Nonlinear Phenomena 240:16 Contents, Inverse Problems 27:7 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: Postdoc Position, Univ of Groningen From: Fred Wubs Date: Sat, 25 Jun 2011 07:50:42 -0400 The project PREdictability of KURoshio current path transitionS (PREKURS) is a joint project from the Universities of Utrecht (Prof. H.A. Dijkstra) and Groningen (Dr. F.W. Wubs). The Kuroshio current near the Japanese coast in the North Pacific Ocean undergoes decadal time scale transitions between different paths. The aim of this project is to assess the predictability of these path transitions and to determine the effects of the large-scale (equivalent) barotropic instabilities, meso-scale eddies and wind-stress variations on this predictability. In the project we will use a combination of direct numerical simulation, stochastic parameterization of the effects of meso-scale eddies, techniques from the theory of random dynamical systems and data-assimilation methods to analyse the flows in one- and two-layer shallow water models of the Kuroshio Current. Part of this work will be done by a postdoc in Utrecht (already appointed). The postdoc in Groningen will concentrate on the stochastic parameterization of meso-scale eddies and the numerical techniques to tackle the stochastic partial differential equations efficiently. Candidates should hold a PhD-degree in applied mathematics or physics; have a good knowledge of numerical mathematics, especially for CFD; have good programming skills; have experience with stochastic analysis and/or oceanography; have demonstrated a potential to carry out creative and independent research, and to publish in the peer-reviewed literature. The candidate is offered a full-time position for one year with a possible two year extension. We like to receive a letter of motivation in which you describe why you are interested in this project, your curriculum vitae (including selected publications), the names and e-mail addresses of two referees. Applications should be send to f.w.wubs@rug.nl before juli 11, 2011. For information you can contact dr.ir. F.W. Wubs (F.W.Wubs@rug.nl). ------ Subject: Lectureships in Appl Maths, Cardiff Univ From: Tim Phillips Date: Fri, 17 Jun 2011 09:53:32 +0100 The School of Mathematics at Cardiff University invites applications for the post of Lecturer in Applied Mathematics. We welcome applications from outstanding individuals in any area of applied or computational mathematics.Applicants should have a record of publications relevant to the fields of applied or computational mathematics. The Applied Mathematics Group in Cardiff is part of the Computational Modelling Cluster of the Wales Institute of Mathematical and Computational Sciences, whose interests include theoretical and computational aspects of fluid and solid mechanics; non-Newtonian fluid mechanics and computational rheology; numerical analysis; mathematics of materials (homogenization) and materials characterization (linear viscoelasticity); inverse problems; and the mathematics of imaging. The Applied Mathematics Group in Cardiff has strong links with the Analysis Group and the Health Modelling Centre Cymru (hmc2). There are well-established interdisciplinary links with other Schools in Cardiff, namely Engineering, Computer Science, Earth Sciences and Medicine. Potential to strengthen existing links or to develop new links in an interdisciplinary setting is warmly welcomed, particularly in the area of biofluids modelling. Further information about the position and the required documents for application can be found at http://www.cardiff.ac.uk/jobs/maths/lectureships-2-in-applied-mathematics-3760.html Informal enquiries may be made to Tim Phillips (PhillipsTN@cf.ac.uk) or Russell Davies (DaviesR@cf.ac.uk). The post is available from 1st September 2011 or a mutually agreed date thereafter. The closing date for applications is 13th July 2011. ------ Subject: PhD Position, Comp Seismology, ETH-Zurich From: Luis Dalguer Date: Thu, 16 Jun 2011 14:36:59 +0200 PhD opportunity in Computational Seismology at the Swiss Seismological Service, ETH Zurich, Switzerland The Computational Seismology Group of the Swiss Seismological Service, ETH Zurich, invite applications for a PhD student position to work on the seismological aspects of the ASCETE project "Advanced Simulation of Coupled Earthquake and Tsunami Events" recently funded by the Volkswagen Stiftung. ASCETE is a project jointly with the Dept. of Earth and Environmental Sciences of LMU Munchen, Dept. of Numerical Methods in Geosciences of Universitat Hamburg and the Institute for Parallel and Distributed Systems of Universitat Stuttgart. The main objective of this project is to study the interaction between the undersea earthquake source rupture process, ocean bottom displacements, and the corresponding sea level disturbance to further evaluate the subsequent potential tsunami generation. The problem will be tackled through purely numerical modeling using the Discontinuos Galerkin (DG) finite element methods. The successful candidate will work on high-performance computational simulations of earthquake ruptures dynamic, developing and implementing constitutive friction laws of rate and state in the DG-method, to investigate the role of friction laws on geometrical complex faults in subduction zones and their effects on the ground motion and ocean bottom displacements. The students will work in close collaboration with scientists of the institute mentioned above and will need to spend some time in one or more institutions of the ASCETE partners. Information on this project visit: http://www.klimacampus.de/NumGeo_ASCETE.html The position is available from October 2011 or soon after and is funded for three years, the anticipated time needed for obtaining a Ph.D. degree at ETH Zurich. Applicants should have a M.Sc. or Diploma in geosciences, physics, applied mechanics, engineering or a related field. Strong analytical skills, experience in numerical models for wave propagation, programming and visualization (MATLAB, FORTRAN, UNIX shells), fluency in English and readiness to work in an international and multidisciplinary team are essential for the position. Knowledge of Discontinuos Galerkin finite element methods would be advantageous. Applicants should submit, by e-mail, an application letter, curriculum vitae, degree certificate, short statement of research interests, names and addresses of three references to Dr. Luis A. Dalguer (e-mail: dalguer@sed.ethz.ch ). Only complete applications will be considered. The selection process starts now and will continue until the position is filled. Preference will be given to disabled applicants with equal qualifications. For more information, please contact Dr. Luis A. Dalguer (dalguer@sed.ethz.ch). ------ Subject: Contents, Physica D: Nonlinear Phenomena 240:16 From: ScienceDirect Message Center Date: Wed, 22 Jun 2011 04:41:57 -0400 * Physica D: Nonlinear Phenomena Volume 240, Issue 16, Pages 1221-1310 (1 August 2011) http://www.sciencedirect.com/science/issue/5537-2011-997599983-3350786 TABLE OF CONTENTS 1) A differential algorithm for the Lyapunov spectrum Original Research Article, Pages 1221-1227 Tomasz Stachowiak, Marek Szydlowski 2) On optimal reconstruction of constitutive relations Original Research Article, Pages 1228-1244 Vladislav Bukshtynov, Oleg Volkov, Bartosz Protas 3) Linearization effect in multifractal analysis: Insights from the Random Energy Model Original Research Article, Pages 1245-1253 Florian Angeletti, Marc Mezard, Eric Bertin, Patrice Abry 4) Self-organised criticality in base-pair breathing in DNA with a defect Original Research Article, Pages 1254-1261 Ciprian-Ionut Duduiala, Jonathan A.D. Wattis, Charles A. Laughton 5) Algebro-geometric constructions of the modified Boussinesq flows and quasi-periodic solutions Original Research Article, Pages 1262-1288 Xianguo Geng, Lihua Wu, Guoliang He 6) Metastability of solitary roll wave solutions of the St. Venant equations with viscosity Original Research Article, Pages 1289-1310 Blake Barker, Mathew A. Johnson, L. Miguel Rodrigues, Kevin Zumbrun ------ Subject: Contents, Inverse Problems 27:7 From: Stephanie Kent Date: Thu, 23 Jun 2011 09:08:15 +0100 INVERSE PROBLEMS Volume 27, Issue 7, July 2011 Article numbers: 075001--075014 Individual articles are free for 30 days following their publication on the web. This issue is available at: http://iopscience.iop.org/0266-5611/27/7 PAPERS 075001 Reconstruction of the interface between two-layered media using far field measurements Lahc\`ene Chorfi and Patricia Gaitan 075002 Comparison of optimal design methods in inverse problems H T Banks, K Holm and F Kappel 075003 Multi-source quantitative photoacoustic tomography in a diffusive regime Guillaume Bal and Kui Ren 075004 Optimal geometry toward uniform current density electrodes Yizhuang Song, Eunjung Lee, Eung Je Woo and Jin Keun Seo 075005 An isospectral problem related to the Dirichlet eigenvalues and the Neumann eigenvalues of a string equation and some related problems Chao-Liang Shen 075006 Singular value decomposition for the truncated Hilbert transform: part II A Katsevich 075007 Inverse spectral problem for Jacobi matrices with partial spectral data Guangsheng Wei and Zhaoying Wei 075008 Convergence rates for total variation regularization of coefficient identification problems in elliptic equations I Dinh Nho H\`ao and Tran Nhan Tam Quyen 075009 An adaptive finite element reconstruction of distributed fluxes Jingzhi Li, Jianli Xie and Jun Zou 075010 Extrapolation in variable RKHSs with application to the blood glucose reading V Naumova, S V Pereverzyev and S Sivananthan 075011 Dynamical inverse problem on a metric tree S A Avdonin, B P Belinskiy and J V Matthews 075012 Contrast source inversion method applied to relatively high contrast objects Paul-Andr\'e Barri\`ere, J\'er\^ome Idier, Jean-Jacques Laurin and Yves Goussard 075013 Conditional stability and uniqueness for determining two coefficients in a hyperbolic--parabolic system Bin Wu and Jijun Liu 075014 Linear convergence rates for Tikhonov regularization with positively homogeneous functionals Markus Grasmair