Digest of the Non Linear Science Network, Volume 08, Number 10 June 1, 2008 Editor: Angel Jorba Topics: Instructional Meeting on SPDEs CEA-EDF-INRIA School on numerical models for controlled fusion Scaling Up & Modeling for Transport and Flow in Porous Media Honorary colloquium for Werner C. Rheinboldt in Berlin Postdocs at RICAM Global CO2 Model Contents, Inverse Problems 24:3 Contents, Communications on Pure and Applied Analysis 7:5 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: Instructional Meeting on SPDEs From: "Buckwar, Evelyn" Date: Wed, 21 May 2008 19:43:18 +0100 Dear Colleagues, an instructional meeting concerned with Stochastic Partial Differential Equations: Computations and Applications will be held from Sep 29th 2008 to Oct 1st 2008 at the International Centre for Mathematical Sciences in Edinburgh. Organisers Evelyn Buckwar, Heriot-Watt University Istvan Gyongy, University of Edinburgh Gabriel Lord, Heriot-Watt University This two and a half day meeting provides an introduction to SPDEs, their analysis, applications and numerics, and is aimed to be accessible to people with no previous background in SPDEs or stochastics. Details on the meeting can be found at: http://icms.org.uk/workshops/spde The meeting is funded by The Maxwell Centre for Analysis and Nonlinear PDEs (http://www.maxwell.ac.uk/PDEs/). Some financial support is available for interested researchers at all levels. To apply see: http://icms.org.uk/workshops/spde. Confirmed Speakers Mike Christie (Institute of Petroleum Engineering, Heriot-Watt University) Arnaud Debussche (ENS Cachan Bretagne) Istvan Gyongy (Mathematics, University of Edinburgh) Gabriel Lord (Mathematics, Heriot-Watt University) Catherine Powell (University of Manchester) Tony Shardlow (Mathematics, University of Manchester) Andrew Stuart (Mathematics, University of Warwick) To apply see: http://icms.org.uk/workshops/spde ------ Subject: CEA-EDF-INRIA School on numerical models for controlled fusion From: Jean-FrdricGerbeau Date: Wed, 21 May 2008 18:53:23 -0400 We are pleased to announce the CEA-EDF-INRIA School entitled "Numerical models for controlled fusion" September 8-12, 2008 Chateau de Valrose - University of Nice, FRANCE ORGANIZERS: Jacques Blum, University of Nice Sophia Antipolis, France Herve Guillard, INRIA, France MAIN SPEAKERS: Jacques Blum, University of Nice Sophia Antipolis, France Jukka Heikkinen, Association Euratom-Tekes, VTT, Finland Yanick Sarazin, Association Euratom-CEA, DRFC Cadarache, France Eric Sonnendrucker, IRMA, Strasbourg, France MAIN TOPICS: - Equilibrium and MHD-stability in Tokamaks - Grid-Vlasov simulations - Transport and turbulence in Plasma - Gyrokinetic models For more information, see: http://www.inria.fr/actualites/colloques/cea-edf-inria/2008/fusion/index.en.html ------ Subject: Scaling Up & Modeling for Transport and Flow in Porous Media From: Brahim Amaziane Date: Thu, 15 May 2008 16:23:20 +0200 Scaling Up and Modeling for Transport and Flow in Porous Media Dubrovnik, Croatia, 13-16 October 2008 http://web.math.hr/~jurak/Dubrovnik08/ Topics of the conference: - Flow and Transport in Heterogeneous Porous Media, - Multiphase Flows, Multiscale Phenomena, Scaling and Heterogeneity, - Scaling in porous media, in particular scaling of processes from the microscale to the mesoscale, the use of coarse grid descriptions in modeling multiphase flow phenomena, - Numerical Homogenization, - Numerical simulation of multiphase flow in heterogeneous porous media, - Mathematical modeling of multiphase flow in porous media. Invited Plenary Speakers: G. Allaire, T. Arbogast, G. Bernard-Michel, J. Blum, G. Bouchitte, G. Chavent, G. A. Chechkin, J. Douglas, H. van Duijn, R. P. Gilbert, J. Jaffre, P. Knaber, R. Masson, A. Mikelic, F. Murat, G. Panasenko, M. Panfilov, L. Pankratov, A. Piatnitski, O. Pironneau, M. Quintard, J. Roberts, T. F. Russell, R. E. Showalter, P. Terpolilli, D. Tromeur-Dervout, M. F. Wheeler, Y. Yortsos. Important dates: - Deadline to submit an abstract: May 31, 2008. - Deadline for registration: June 30, 2008. Best Regards, On behalf of the organizing committee Brahim Amaziane ------ Subject: Honorary colloquium for Werner C. Rheinboldt in Berlin From: Peter Deuflhard Date: Wed, 14 May 2008 16:57:53 +0200 On June 24, 2008, the Zuse Institute Berlin (ZIB) is honoring Werner Rheinboldt on the occasion of his 80th birthday, admittedly a bit late. Everybody is invited to participate. Werner Rheinboldt is well- known for his work on nonlinear systems and on differential-algebraic equations. During his carreer he has also served as SIAM president. Speakers will be Volker Mehrmann (TU Berlin and MATHEON) and Bernd Simeon (TU Munich). Details please find under http://www.zib.de/deuflhard/invitation_WCR.pdf ------ Subject: Postdocs at RICAM From: "Prof. Heinz W. Engl" Date: Fri, 16 May 2008 13:23:54 +0200 (CEST) PostDoc Positions f/m at the Johann Radon Institute for Computational and Applied Mathematics (RICAM) of the Austrian Academy of Sciences, Linz, Austria RICAM (www.ricam.oeaw.ac.at) is a well established mathematical research institute located on the campus of the Kepler University in Linz, Austria and has openings in the following groups: - Mathematical Methods in Molecular and Systems Biology - (new working group to be established in Vienna) - Computational Methods for Direct Field Problems - Prof. Langer - Inverse Problems - Prof. Engl - Optimization and Control - Prof. Kunisch - Symbolic Computation - Prof. Schicho - Analysis of Partial Differential Equations - Prof. Markowich, Prof. Schmeiser - Mathematical Imaging - Prof. Scherzer Cooperation between groups is strongly encouraged. PostDocs interested to work in one of these research areas are encouraged to send their application with personal and scientific data and a statement about scientific interests and achievements to the director, Prof. Heinz W. Engl at, heinz.engl@oeaw.ac.at and the scientific group leader per e-mail. Further information concerning the working fields can be obtained from the group leaders: http://www.ricam.oeaw.ac.at/research/ For all positions a doctorate in mathematics or a closely related field is required. The working language is English. The positions are initially for up to three years, one renewal for three more years is possible depending on achievements. The Austrian Academy of Sciences is an equal opportunity employer. ------ Subject: Global CO2 Model From: "William E. Schiesser" Date: Wed, 21 May 2008 10:59:55 -0400 A new release of an Introductory Global CO2 Model is now available. The model is intended to quantitatively introduce the CO2 problem at a basic level, with particular emphasis on ocean acidification which has not received the same attention as global warming and climate change, but could be just as important. The model is based on seven reservoirs: upper atmosphere, lower atmosphere, long lived biota, short lived biota, ocean upper layer, ocean deep layer and marine biosphere. Through the assumption of perfect mixing in each reservoir, the model consists of just seven, first order, initial value ODEs that are integrated numerically, typically over the interval 1850 (preindustrial) to 2100. We have revised the model so that it now has the following features: (1) Recalibration to more accurately reflect the current measured atmospheric CO2 concentration. (2) Carbon fluxes that are difficult to estimate are circumvented. (3) Basic ocean chemistry has been added that highlights: (3.1) Projections of ocean acidification. (3.2) CaCO3 dissolution (as in coral, for example). (4) Projected anthropogenic CO2 emissions can be conveniently studied. The model is available as a set of Matlab routines on a CD, with related documentation, through a request directed to wes1@lehigh.edu. Please provide a postal mailing address. A small package will be sent by US First Class mail or international air mail. Please direct any questions to wes1@lehigh.edu. G. W. Griffiths, UK A. J. McHugh, USA W. E. Schiesser, USA ------ Subject: Contents, Inverse Problems 24:3 From: Laura Smith Date: Fri, 23 May 2008 13:59:59 +0100 INVERSE PROBLEMS Volume 24, Issue 3, June 2008 Article numbers: 034001--035022 Individual articles are free for 30 days following their publication on the web. This issue is available at: http://www.iop.org/EJ/toc/0266-5611/24/3 SPECIAL SECTION ON STATISTICAL AND COMPUTATIONAL ISSUES IN INVERSE PROBLEMS 034001 Guest Editors' introduction to the special section on statistical and computational issues in inverse problems L Tenorio, E Haber, W W Symes, P B Stark, D Cox and O Ghattas 034002 Smoothing noisy data via regularization: statistical perspectives Chong Gu 034003 Fast denoising of surface meshes with intrinsic texture H Huang and U Ascher 034004 Nonparametric statistical inverse problems L Cavalier 034005 Residual periodograms for choosing regularization parameters for ill-posed problems Bert W Rust and Dianne P O'Leary 034006 Strong robust generalized cross-validation for choosing the regularization parameter Mark A Lukas 034007 Computational techniques for a quantum control problem with $H^1$-cost G von Winckel and A Borz\`\i 034008 Ill-posed medicine---an introduction to image registration Bernd Fischer and Jan Modersitzki 034009 Statistical inference for inverse problems Nicolai Bissantz and Hajo Holzmann 034010 A multilevel algorithm for inverse problems with elliptic PDE constraints George Biros and G\"unay Dogan 034011 Adaptive finite element methods for the solution of inverse problems in optical tomography Wolfgang Bangerth and Amit Joshi 034012 Resistivity imaging with controlled-source electromagnetic data: depth and data weighting R-\'E Plessix and W A Mulder 034013 Hypermodels in the Bayesian imaging framework Daniela Calvetti and Erkki Somersalo 034014 Generalizing resolution Philip B Stark 034015 A Newton-CG method for large-scale three-dimensional elastic full-waveform seismic inversion I Epanomeritakis, V Ak\ccelik, O Ghattas and J Bielak 034016 Regularized reconstruction of water surfaces from noisy gradient information via plane-wave superposition Finbarr O'Sullivan, Jian Huang, Kingshuk Roy Choudhury, Guillmette Caulliez and Victor Shrira 034017 An active-set equality constrained Newton solver with feasibility restoration for inverse coefficient problems in elliptic variational inequalities M Hinterm\"uller PAPERS 035001 Fixed-point iterations in determining the Tikhonov regularization parameter Ferm\'\in S Viloche Baz\'an 035002 The quasi-optimality criterion for classical inverse problems Frank Bauer and Stefan Kindermann 035003 Numerical solution of an inverse 2D Cauchy problem connected with the Helmholtz equation T Wei, H H Qin and R Shi 035004 Uniqueness in determining polyhedral sound-hard obstacles with a single incoming wave Johannes Elschner and Masahiro Yamamoto 035005 Imaging moving targets from scattered waves Margaret Cheney and Brett Borden 035006 Phase reconstruction by a multilevel iteratively regularized Gauss--Newton method Dirk Langemann and Manfred Tasche 035007 A semismooth Newton method for Tikhonov functionals with sparsity constraints R Griesse and D A Lorenz 035008 Enhancement of microwave tomography through the use of electrically conducting enclosures Colin Gilmore and Joe LoVetri 035009 On the Volterra integral equation relating creep and relaxation R S Anderssen, A R Davies and F R de Hoog 035010 The problem of polarization tomography: II Vladimir Sharafutdinov 035011 Multi-frequency identification of defects in conducting media A Pirani, M Ricci, R Specogna, A Tamburrino and F Trevisan 035012 The Boussinesq equation with self-consistent sources Hongxia Wu, Yunbo Zeng and Tianyou Fan 035013 Electrical impedance tomography with resistor networks Liliana Borcea, Vladimir Druskin and Fernando Guevara Vasquez 035014 A systematic linear space approach to solving partially described inverse eigenvalue problems Sau-Lon James Hu and Haujun Li 035015 History matching of petroleum reservoirs using a level set technique Oliver Dorn and Rossmary Villegas 035016 The study of an iterative method for the reconstruction of images corrupted by Poisson and Gaussian noise F Benvenuto, A La Camera, C Theys, A Ferrari, H Lant\'eri and M Bertero 035017 Source localization in ellipsoids by the best meromorphic approximation in planar sections Juliette Leblond, Cristina Paduret, St\'ephane Rigat and Meriem Zghal 035018 A global uniqueness for formally determined inverse electromagnetic obstacle scattering Hongyu Liu 035019 An inverse adhesion problem for extracting interfacial pair potentials for the Al(0 0 1)/3C--SiC(0 0 1) interface Hanyue Zhao and Nanxian Chen 035020 Restricted isometry properties and nonconvex compressive sensing Rick Chartrand and Valentina Staneva 035021 A direct nonlinear inversion of primary wave data reflecting from extended, heterogeneous media Kristopher A Innanen 035022 Inverse acoustic scattering by small-obstacle expansion of a misfit function Marc Bonnet ------ Subject: Contents, Communications on Pure and Applied Analysis 7:5 From: Jinyan Fan Date: Mon, 26 May 2008 11:20:24 +0800 Communications on Pure and Applied Analysis (CPAA) Volume: 7, Number: 5, September 2008 http://aimsciences.org/journals/cpaa/current_CPAA.jsp Eduard Feireisl, Hana Petzeltov{\' a} and Konstantina Trivisa Pages{1017--1047} Multicomponent reactive flows: Global-in-time existence for large data F. D. Araruna, F. O. Matias, M. P. Matos and S. M. S. Souza Pages{1049--1056} Hidden regularity for the Kirchhoff equation Mohamed Ben Ayed and Kamal Ould Bouh Pages{1057--1075} Nonexistence results of sign-changing solutions to a supercritical nonlinear problem Rinaldo M. Colombo and Graziano Guerra Pages{1077--1090} Hyperbolic balance laws with a dissipative non local source Zongming Guo and Xuefei Bai Pages{1091--1107} On the global branch of positive radial solutions of an elliptic problem with singular nonlinearity Haiyang He and Jianfu Yang Pages{1109--1122} Positive solutions for critical elliptic systems in non-contractible domains Nobu Kishimoto Pages{1123--1143} Local well-posedness for the Cauchy problem of the quadratic Schr\"odinger equation with nonlinearity $\overline{u}^2$ Aldo Procacci and Benedetto Scoppola Pages{1145--1178} Convergent expansions for Random Cluster Model with $q>0$ on infinite graphs R. May and E. Zahrouni Pages{1179--1191} Global existence of solutions for subcritical quasi-geostrophic equations Ahmad El Soufi and Rola Kiwan Pages{1193--1201} Where to place a spherical obstacle so as to maximize the second Dirichlet eigenvalue