Digest of the Non Linear Science Network, Volume 10, Number 07 April 15, 2010 Editor: Angel Jorba Topics: Course, Introduction to Dynamical Systems and PDEs Research Meeting on Stochastic Delay Differential Equations Contents, Discrete and Continuous Dynamical Systems - Series A 27:3 Contents, Discrete and Continuous Dynamical Systems - Series A 27:4 Contents, Discrete and Continuous Dynamical Systems - Series A 28:1 Contents, Discrete and Continuous Dynamical Systems - Series S 3:2 Contents, Mathematical Biosciences and Engineering 7:2 Contents, Inverse Problems 26:4 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: Course, Introduction to Dynamical Systems and PDEs From: Amadeu Delshams Date: Thu, 15 Apr 2010 12:35:40 +0200 Eigth *JORNADES D'INTRODUCCIO ALS SISTEMES DINAMICS I A LES EDP'S (JISD2010)* Barcelona, Universitat Politecnica de Catalunya (UPC), June 14-23, 2010 http://www.ma1.upc.edu/recerca/seminaris/JISD2010/indexjisd2010.html Four courses will be taught by Massimiliano Berti, Tim Myers, Jean-Michel Roquejoffre, and Alfonso Sorrentino, within the Master in Applied Mathematics and Mathematical Engineering of the UPC Graduate School, and are organized by Xavier Cabre, Amadeu Delshams, Maria del Mar Gonzalez, and Tere M. Seara. Courses: New connections between dynamical systems and Hamiltonian PDEs, by Massimiliano Berti (Univ. Federico II) Mathematical modelling of phase transitions, by Tim Myers (CRM, Bellaterra, Barcelona) Partial differential equations with fractional diffusion, by Jean-Michel Roquejoffre (Univ. Paul Sabatier. Toulouse III Action-minimizing methods in Lagrangian dynamics, by Alfonso Sorrentino (Univ. of Cambridge) There will be some *financial support* available for this edition. Deadline to apply for financial support: April 30, 2010 http://www.ma1.upc.edu/recerca/seminaris/JISD2010/indexjisd2010.html ------ Subject: Research Meeting on Stochastic Delay Differential Equations From: "Neville Ford" Date: Tue, 30 Mar 2010 14:22:41 +0100 Research Meeting on Stochastic Delay Differential Equations at University of Chester, UK Title: Numerical and analytical solution of stochastic delay differential equations, 31st August -3rd September 2010. To be held at the Department of Mathematics, University of Chester, Parkgate Road, Chester CH1 4BJ, UK Organised by the Leverhulme Research Network whose members include: Neville Ford - University of Chester, UK Uwe Kuchler - Humboldt University at Berlin, Germany John Appleby - Dublin City University, Ireland Xuerong Mao - University of Strathclyde, UK Christopher Baker - Universities of Chester & Manchester, UK Leonid Shaikhet - Donetsk State University of Management, Ukraine Alexander Matasov - Lomonosov Moscow State University, Moscow Michael Tretyakov - University of Leicester, UK Speakers already confirmed include: Gabriel Lord - Heriot-Watt University Bernt Oksendal - University of Oslo, Norway Gennady Bochorov - Institute of Numerical Mathematics, Russian Academy of Sciences Leonid Shaikhet - Donetsk State University of Management Xuerong Mao - University of Strathclyde Sotirios Sabanis - The University of Edinburgh Chenggui Yuan - University of Wales, Swansea Full details are available at the meeting homepage: http://www.stochasticdelay.org.uk/ The Leverhulme International network, based in Chester and led by Professor Neville Ford, has been established for 3 years, from 2008 to 2011, with the aim of bringing together experts from the areas of mathematical modelling, mathematical analysis, numerical and computational methods and stochastic analysis of functional differential equations. This is the 3rd of 4 network workshop meetings to enable methodologies to be shared and new working methods and collaborations to be established. Scientific queries to: Neville Ford (njford@chester.ac.uk) Other queries to Nicola Williams (nicola.williams@chester.ac.uk) ------ Subject: Contents, Discrete and Continuous Dynamical Systems - Series A 27:3 From: Liwei Ning Date: Fri, 9 Apr 2010 16:46:43 -0500 Discrete and Continuous Dynamical Systems Series A (DCDS-A) Volume: 27, Number: 3 July 2010 http://aimsciences.org/journals/displayPapers1.jsp?pubID=355 We offer a couple of weeks free online access to the full paper of DCDS-A 27-3 Issue. Andre de Carvalho and Toby Hall pages{863--906} Decoration invariants for horseshoe braids doi:10.3934/dcds.2010.27.863 Frederic Abergel and Remi Tachet pages{907--917} A nonlinear partial integro-differential equation from mathematical finance doi:10.3934/dcds.2010.27.907 Lassaad Aloui and Moez Khenissi pages{919--934} Boundary stabilization of the wave and Schr\"odinger equations in exterior domains doi:10.3934/dcds.2010.27.919 In-Soo Baek and Lars Olsen pages{935--943} Baire category and extremely non-normal points of invariant sets of IFS's doi:10.3934/dcds.2010.27.935 Jan Kwiatkowski and Artur Siemaszko pages{945--961} Discrete orbits in topologically transitive cylindrical transformations doi:10.3934/dcds.2010.27.945 Magdalena Caubergh, Freddy Dumortier and Stijn Luca pages{963--980} Cyclicity of unbounded semi-hyperbolic 2-saddle cycles in polynomial Lienard systems doi:10.3934/dcds.2010.27.963 Shuhong Chen and Zhong Tan pages{981--993} Optimal interior partial regularity for nonlinear elliptic systems doi:10.3934/dcds.2010.27.981 Vaughn Climenhaga pages{995--1005} A note on two approaches to the thermodynamic formalism doi:10.3934/dcds.2010.27.995 William Geller, Bruce Kitchens and Michal Misiurewicz pages{1007--1024} Microdynamics for Nash maps doi:10.3934/dcds.2010.27.1007 Ying Fu, Changzheng Qu and Yichen Ma pages{1025--1035} Well-posedness and blow-up phenomena for the interacting system of the Camassa-Holm and Degasperis-Procesi equations doi:10.3934/dcds.2010.27.1025 Jesus Idelfonso Diaz and Jean Michel Rakotoson pages{1037--1058} On very weak solutions of semi-linear elliptic equations in the framework of weighted spaces with respect to the distance to the boundary doi:10.3934/dcds.2010.27.1037 Chris Good, Robin Knight and Brian Raines pages{1059--1078} Countable inverse limits of postcritical $\w$-limit sets of unimodal maps doi:10.3934/dcds.2010.27.1059 Hadda Hmili pages{1079--1091} Non topologically weakly mixing interval exchanges doi:10.3934/dcds.2010.27.1079 Jun-ichi Segata pages{1093--1105} Well-posedness and existence of standing waves for the fourth order nonlinear Schrodinger type equation doi:10.3934/dcds.2010.27.1093 Wael Bahsoun and Christopher Bose pages{1107--1121} Quasi-invariant measures, escape rates and the effect of the hole doi:10.3934/dcds.2010.27.1107 Eun Kyoung Lee, R. Shivaji and Jinglong Ye pages{1123--1132} Classes of singular $pq-$Laplacian semipositone systems doi:10.3934/dcds.2010.27.1123 Keonhee Lee and Manseob Lee pages{1133--1145} Hyperbolicity of $C^1$-stably expansive homoclinic classes doi:10.3934/dcds.2010.27.1133 Wen-Xin Qin pages{1147--1158} Rotating modes in the Frenkel-Kontorova model with periodic interaction potential doi:10.3934/dcds.2010.27.1147 Jean-Pierre Raymond and Laetitia Thevenet pages{1159--1187} Boundary feedback stabilization of the two dimensional Navier-Stokes equations with finite dimensional controllers doi:10.3934/dcds.2010.27.1159 Francesco Solombrino pages{1189--1217} Quasistatic evolution for plasticity with softening: The spatially homogeneous case doi:10.3934/dcds.2010.27.1189 Peng Sun pages{1219--1231} Measures of intermediate entropies for skew product diffeomorphisms doi:10.3934/dcds.2010.27.1219 Gerald Teschl pages{1233--1239} On the spatial asymptotics of solutions of the Toda lattice doi:10.3934/dcds.2010.27.1233 Jun Wang, Junxiang Xu and Fubao Zhang pages{1241--1257} Homoclinic orbits for superlinear Hamiltonian systems without Ambrosetti-Rabinowitz growth condition doi:10.3934/dcds.2010.27.1241 ------ Subject: Contents, Discrete and Continuous Dynamical Systems - Series A 27:4 From: Liwei Ning Date: Wed, 14 Apr 2010 10:25:02 -0500 Discrete and Continuous Dynamical Systems Series A (DCDS-A) Volume: 27, Number: 4 August 2010 http://www.aimsciences.org/journals/displayPapers1.jsp?pubID=357 We offer a couple of weeks free online access to the full paper of DCDS-A 27-4, A special issue "Dedicated to Roger Temam on the Occasion of his 70th Birthday" Part I . Claude-Michel Brauner, Danielle Hilhorst, Alain Miranville, Shouhong Wang and Xiaoming Wang pages{i--iii} Preface doi:10.3934/dcds.2010.27.4i Francois Alouges, Sylvain Faure and Jutta Steiner pages{1259--1282} The vortex core structure inside spherical ferromagnetic particles doi:10.3934/dcds.2010.27.1259 Anatoli Babin and Alexander Figotin pages{1283--1326} Some mathematical problems in a neoclassical theory of electric charges doi:10.3934/dcds.2010.27.1283 Nusret Balci, Ciprian Foias, Michael S. Jolly and Ricardo Rosa pages{1327--1351} On universal relations in 2-D turbulence doi:10.3934/dcds.2010.27.1327 Hamid Bellout, Jiri Neustupa and Patrick Penel pages{1353--1373} On a $\nu$--continuous family of strong solutions to the Euler or Navier--Stokes equations with the Navier--Type boundary condition doi:10.3934/dcds.2010.27.1353 Alain Bensoussan, Jens Frehse and Jens Vogelgesang pages{1375--1389} Systems of Bellman equations to stochastic differential games with non-compact coupling doi:10.3934/dcds.2010.27.1375 Jerry L. Bona and Didier Pilod pages{1391--1413} Stability of solitary-wave solutions to the Hirota-Satsuma equation doi:10.3934/dcds.2010.27.1391 Claude-Michel Brauner, Josephus Hulshof, Luca Lorenzi and Gregory I. Sivashinsky pages{1415--1446} A fully nonlinear equation for the flame front in a quasi-steady combustion model doi:10.3934/dcds.2010.27.1415 Alexandre Caboussat and Roland Glowinski pages{1447--1472} Numerical solution of a variational problem arising in stress analysis: The vector case doi:10.3934/dcds.2010.27.1447 Min Chen, Serge Dumont, Louis Dupaigne and Olivier Goubet pages{1473--1492} Decay of solutions to a water wave model with a nonlocal viscous dispersive term doi:10.3934/dcds.2010.27.1473 Vladimir Chepyzhov and Mark Vishik pages{1493--1509} Trajectory attractor for reaction-diffusion system with diffusion coefficient vanishing in time doi:10.3934/dcds.2010.27.1493 Laurence Cherfils, Madalina Petcu and Morgan Pierre pages{1511--1533} A numerical analysis of the Cahn-Hilliard equation with dynamic boundary conditions doi:10.3934/dcds.2010.27.1511 Monica Conti, Elsa M. Marchini and Vittorino Pata pages{1535--1552} Semilinear wave equations of viscoelasticity in the minimal state framework doi:10.3934/dcds.2010.27.1535 Giuseppe Da Prato and Arnaud Debussche pages{1553--1570} Asymptotic behavior of stochastic PDEs with random coefficients doi:10.3934/dcds.2010.27.1553 Jeffrey J. Early, Juha Pohjanpelto and Roger M. Samelson pages{1571--1586} Group foliation of equations in geophysical fluid dynamics doi:10.3934/dcds.2010.27.1571 Eduard Feireisl pages{1587--1609} Long time behavior and attractors for energetically insulated fluid systems doi:10.3934/dcds.2010.27.1587 Ciprian Foias, Ricardo Rosa and Roger Temam pages{1611--1631} Topological properties of the weak global attractor of the three-dimensional Navier-Stokes equations doi:10.3934/dcds.2010.27.1611 Michel Fremond and Elisabetta Rocca pages{1633--1659} A model for shape memory alloys with the possibility of voids doi:10.3934/dcds.2010.27.1633 ------ Subject: Contents, Discrete and Continuous Dynamical Systems - Series A 28:1 From: Liwei Ning Date: Wed, 14 Apr 2010 11:11:13 -0500 Discrete and Continuous Dynamical Systems Series A (DCDS-A) Volume: 28, Number: 1 September 2010 http://www.aimsciences.org/journals/displayPapers1.jsp?pubID=359 We offer a couple of weeks free online access to the full paper of DCDS-A 28-1, A special issue "Dedicated to Roger Temam on the Occasion of his 70th Birthday" Part II . Claude-Michel Brauner, Danielle Hilhorst, Alain Miranville, Shouhong Wang and Xiaoming Wang pages{i--iii} Preface doi:10.3934/dcds.2010.28.1i Ciprian G. Gal and Maurizio Grasselli pages{1--39} Longtime behavior for a model of homogeneous incompressible two-phase flows doi:10.3934/dcds.2010.28.1 Gisele Ruiz Goldstein, Jerome A. Goldstein and Naima Naheed pages{41--65} A convexified energy functional for the Fermi-Amaldi correction doi:10.3934/dcds.2010.28.41 Maurizio Grasselli, Alain Miranville and Giulio Schimperna pages{67--98} The Caginalp phase-field system with coupled dynamic boundary conditions and singular potentials doi:10.3934/dcds.2010.28.67 Chun-Hsiung Hsia, Tian Ma and Shouhong Wang pages{99--130} Rotating Boussinesq equations: Dynamic stability and transitions doi:10.3934/dcds.2010.28.99 Alexei A. Ilyin pages{131--146} Lower bounds for the spectrum of the Laplace and Stokes operators doi:10.3934/dcds.2010.28.131 Chang-Yeol Jung and Alex Mahalov pages{147--159} Wave propagation in random waveguides doi:10.3934/dcds.2010.28.147 Peter E. Kloeden and Jose Valero pages{161--179} The Kneser property of the weak solutions of the three dimensional Navier-Stokes equations doi:10.3934/dcds.2010.28.161 Yuen-Yick Kwan, Jinhae Park and Jie Shen pages{181--197} A mathematical and numerical study of incompressible flows with a surfactant monolayer doi:10.3934/dcds.2010.28.181 Olivier P. Le Maitre, Lionel Mathelin, Omar M. Knio and M. Yousuff Hussaini pages{199--226} Asynchronous time integration for polynomial chaos expansion of uncertain periodic dynamics doi:10.3934/dcds.2010.28.199 Marcel Lesieur pages{227--241} Two-point closure based large-eddy simulations in turbulence. Part 2: Inhomogeneous cases doi:10.3934/dcds.2010.28.227 Tatsien Li, Bopeng Rao and Zhiqiang Wang pages{243--257} Exact boundary controllability and observability for first order quasilinear hyperbolic systems with a kind of nonlocal boundary conditions doi:10.3934/dcds.2010.28.243 Zhi Lin, Katarina Bodova and Charles R. Doering pages{259--274} Models \& measures of mixing \& effective diffusion doi:10.3934/dcds.2010.28.259 Alain Miranville and Sergey Zelik pages{275--310} The Cahn-Hilliard equation with singular potentials and dynamic boundary conditions doi:10.3934/dcds.2010.28.275 Noboru Okazawa and Tomomi Yokota pages{311--341} Subdifferential operator approach to strong wellposedness of the complex Ginzburg-Landau equation doi:10.3934/dcds.2010.28.311 Jean-Michel Rakotoson pages{343--373} Generalized eigenvalue problem for totally discontinuous operators doi:10.3934/dcds.2010.28.343 Fabio Ramos and Edriss S. Titi pages{375--403} Invariant measures for the $3$D Navier-Stokes-Voigt equations and their Navier-Stokes limit doi:10.3934/dcds.2010.28.375 Cheng Wang, Xiaoming Wang and Steven M. Wise pages{405--423} Unconditionally stable schemes for equations of thin film epitaxy doi:10.3934/dcds.2010.28.405 ------ Subject: Contents, Discrete and Continuous Dynamical Systems - Series S 3:2 From: Liwei Ning Date: Wed, 14 Apr 2010 11:25:31 -0500 Discrete and Continuous Dynamical Systems Series S (DCDS-S) Volume: 3, Number: 2 June 2010 http://aimsciences.org/journals/displayPapers1.jsp?pubID=358 We offer a couple of weeks free online access to the full paper of DCDS-A 3-2, A special issue "Dedicated to Professor Vsevolod Aleksevich Solonnikov on the Occasion of his 75th Birthday". Sarka Necasova, Reimund Rautman and Werner Varnhorn pages{i--ii} Preface doi:10.3934/dcdss.2010.3.2i Helmut Abels pages{141--157} Nonstationary Stokes system with variable viscosity in bounded and unbounded domains doi:10.3934/dcdss.2010.3.141 Cherif Amrouche and Maria Angeles Rodriguez-Bellido pages{159--183} On the very weak solution for the Oseen and Navier-Stokes equations doi:10.3934/dcdss.2010.3.159 Claude Bardos and Edriss S. Titi pages{185--197} Loss of smoothness and energy conserving rough weak solutions for the $3d$ Euler equations doi:10.3934/dcdss.2010.3.185 Luigi C. Berselli pages{199--219} An elementary approach to the 3D Navier-Stokes equations with Navier boundary conditions: Existence and uniqueness of various classes of solutions in the flat boundary case doi:10.3934/dcdss.2010.3.199 Ihsane Bikri, Ronald B Guenther and Enrique A Thomann pages{221--230} The Dirichlet to Neumann map - An application to the Stokes problem in half space doi:10.3934/dcdss.2010.3.221 Hugo Beirao da Veiga pages{231--236} A challenging open problem: The inviscid limit under slip-type boundary conditions doi:10.3934/dcdss.2010.3.231 Paul Deuring, Stanislav Kracmar and Sarka Necasova pages{237--253} A representation formula for linearized stationary incompressible viscous flows around rotating and translating bodies doi:10.3934/dcdss.2010.3.237 Lars Diening and Michael Ruzicka pages{255--268} An existence result for non-Newtonian fluids in non-regular domains doi:10.3934/dcdss.2010.3.255 Andrei Fursikov pages{269--289} Local existence theorems with unbounded set of input data and unboundedness of stable invariant manifolds for 3D Navier-Stokes equations doi:10.3934/dcdss.2010.3.269 Matthias Geissert, Horst Heck, Matthias Hieber and Okihiro Sawada pages{291--297} Remarks on the $L^p$-approach to the Stokes equation on unbounded domains doi:10.3934/dcdss.2010.3.291 Horst Heck, Matthias Hieber and Kyriakos Stavrakidis pages{299--309} $L^\infty$-estimates for parabolic systems with VMO-coefficients doi:10.3934/dcdss.2010.3.299 Ondrej Kreml and Milan Pokorny pages{311--324} On the local strong solutions for the FENE dumbbell model doi:10.3934/dcdss.2010.3.311 Petr Kucera pages{325--337} The time-periodic solutions of the Navier--Stokes equations with mixed boundary conditions doi:10.3934/dcdss.2010.3.325 Rainer Picard pages{339--349} On a comprehensive class of linear material laws in classical mathematical physics doi:10.3934/dcdss.2010.3.339 Paolo Secchi pages{351--359} An alpha model for compressible fluids doi:10.3934/dcdss.2010.3.351 Zdenek Skalak pages{361--370} On the asymptotic decay of higher-order norms of the solutions to the Navier-Stokes equations in $\mathbf{R}^3$ doi:10.3934/dcdss.2010.3.361 ------ Subject: Contents, Mathematical Biosciences and Engineering 7:2 From: Liwei Ning Date: Fri, 9 Apr 2010 16:33:14 -0500 Mathematical Biosciences and Engineering (MBE) Volume: 7, Number: 2 April 2010 http://aimsciences.org/journals/displayPapers1.jsp?pubID=360 We offer a couple of weeks free online access to the full paper of MBE 7-2 Issue. H. Thomas Banks, Shuhua Hu, Zackary R. Kenz and Hien T. Tran pages{213--236} A comparison of nonlinear filtering approaches in the context of an HIV model doi:10.3934/mbe.2010.7.213 Benedetto Bozzini, Deborah Lacitignola and Ivonne Sgura pages{237--258} Morphological spatial patterns in a reaction diffusion model for metal growth doi:10.3934/mbe.2010.7.237 Colette Calmelet and Diane Sepich pages{259--275} Surface tension and modeling of cellular intercalation during zebrafish gastrulation doi:10.3934/mbe.2010.7.259 Fabrizio Clarelli and Roberto Natalini pages{277--300} A pressure model of immune response to mycobacterium tuberculosis infection in several space dimensions doi:10.3934/mbe.2010.7.277 Julien Coatleven and Claudio Altafini pages{301--312} A kinetic mechanism inducing oscillations in simple chemical reactions networks doi:10.3934/mbe.2010.7.301 Yves Dumont and Frederic Chiroleu pages{313--345} Vector control for the Chikungunya disease doi:10.3934/mbe.2010.7.313 Yoichi Enatsu, Yukihiko Nakata and Yoshiaki Muroya pages{347--361} Global stability for a class of discrete SIR epidemic models doi:10.3934/mbe.2010.7.347 Martha Garlick, James Powell, David Eyre and Thomas Robbins pages{363--384} Mathematically modeling PCR: An asymptotic approximation with potential for optimization doi:10.3934/mbe.2010.7.363 Philip Gerlee and Alexander R. A. Anderson pages{385--400} Diffusion-limited tumour growth: Simulations and analysis doi:10.3934/mbe.2010.7.385 Nikolaos Kazantzis and Vasiliki Kazantzi pages{401--419} Characterization of the dynamic behavior of nonlinear biosystems in the presence of model uncertainty using singular invariance PDEs: Application to immobilized enzyme and cell bioreactors doi:10.3934/mbe.2010.7.401 Felicia Maria G. Magpantay and Xingfu Zou pages{421--442} Wave fronts in neuronal fields with nonlocal post-synaptic axonal connections and delayed nonlocal feedback connections doi:10.3934/mbe.2010.7.421 Yasumasa Saisho pages{443--453} Mathematical observations on the relation between eclosion periods and the copulation rate of cicadas doi:10.3934/mbe.2010.7.443 Alan J. Terry pages{455--477} Pulse vaccination strategies in a metapopulation SIR model doi:10.3934/mbe.2010.7.455 ------ Subject: Contents, Inverse Problems 26:4 From: Emma Avery Date: Thu, 1 Apr 2010 11:17:48 +0100 INVERSE PROBLEMS Volume 26, Issue 4, April 2010 Article numbers: 045001--045013 Individual articles are free for 30 days following their publication on the web. This issue is available at: http://iopscience.iop.org/0266-5611/26/4 PAPERS 045001 A rigorous analysis using optimal transport theory for a two-reflector design problem with a point source Tilmann Glimm 045002 Source splitting via the point source method Roland Potthast, Filippo M Fazi and Philip A Nelson 045003 Picosecond scale experimental verification of a globally convergent algorithm for a coefficient inverse problem Michael V Klibanov, Michael A Fiddy, Larisa Beilina, Natee Pantong and John Schenk 045004 Mittag--Leffler's function, Vekua transform and an inverse obstacle scattering problem Masaru Ikehata 045005 Uniqueness in inverse elastic scattering with finitely many incident waves Johannes Elschner and Masahiro Yamamoto 045006 Integral equation models for image restoration: high accuracy methods and fast algorithms Yao Lu, Lixin Shen and Yuesheng Xu 045007 A multi-section approach for rough surface reconstruction via the Kirsch--Kress scheme C Burkard and R Potthast 045008 Advancements to the planogram frequency--distance rebinning algorithm Kyle M Champley, Raymond R Raylman and Paul E Kinahan 045009 The boundary control approach to inverse spectral theory Sergei Avdonin and Victor Mikhaylov 045010 Circular resistor networks for electrical impedance tomography with partial boundary measurements L Borcea, V Druskin and A V Mamonov 045011 Analytical and computational methods for transmission eigenvalues David Colton, Peter Monk and Jiguang Sun 045012 A posteriori error estimates for the adaptivity technique for the Tikhonov functional and global convergence for a coefficient inverse problem Larisa Beilina and Michael V Klibanov 045013 Improving the Gauss--Newton convergence of a certain position registration scheme C Toews and B Nelson