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Program of
The 2nd Panamerican Workshop on
Applied and Computational Mathematics
Serrano, Gramado, BRAZIL
September 7-12, 1997

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Program Committee

Victor Pereyra, Chair	Weidlinger Associates, Los Altos, CA, USA	pereyra@ca.wai.com
John Dennis	Rice University, Houston, TX, USA	dennis@rice.edu
James M. Hyman	LANL, Los Alamos, NM, USA	mac@cnls.lanl.gov
Juan Meza	SNL, Livermore, CA, USA	meza@ca.sandia.gov
Carlos de Moura	UFF, Niteroi, Brazil	demoura@lncc.br
Stanly Steinberg	UNM, Albuquerque, NM, USA	stanly@math.unm.edu
Martin Tygel	Unicamp, Brasil	tygel@ime.unicamp.br

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Sunday, September 7, 1997

4:00 - 8:00 pm Minicourse on Introduction to Wavelets and Applications
Instructor: Sergio Zarantonello, Silicon Graphics, Mountain View, CA, USA.

Monday, September 8, 1997

8:30 - 9:00 Opening ceremony

9:00 Sandra Santos, IME, Unicamp, Brazil:
"Trust region methods for large scale problems"

Minisymposium: "Computer algebra"
Chairpersons: Michael Wester and Stanly Steinberg

9:50 - 10:15 Michael Wester, Univ. of New Mexico, USA:
"General purpose systems"
10:15 - 10:40 Stanly Steinberg, Univ. of New Mexico, USA:
"Using logic to solve stability problems"

10:40 - 11:00 Break

11:00 - 11:25 Herbert Fischer, Technische Universitat Munchen, Germany:
"The branch-problem in symbolic differentiation"
11:25 - 11:50 Alejandro S. Jakubi, Departamento de Fisica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina:
"Solution of nonlinear differential equations by nonlocal transformations"

Minisymposium: "Computational fluid mechanics and applications"
Chairpersons: Jose Alberto Cuminato, Alexandre Roma, and Joao Luiz F. Azevedo

Session 1: Interfaces/porous media

9:50 - 10:15 M. F. Tome, Instituto Superior Tecnico de Lisboa, Portugal, A.C. Filho, J.A. Cuminato, ICMSC-USP, Brazil, and S. McKee, University of Strathclyde, Glasgow, UK:
"A numerical method for solving three-dimensional free surface flows"
10:15 - 10:40 A. Castelo, J.A. Cuminato, C.N.L. Cesar, ICMSC-USP, Brazil, and M.F. Tome, Instituto Superior Tecnico de Lisboa, Portugal:
"An integrated simulation system for 3D incompressible free surface flows"

10:40 - 11:00 Break

11:00 - 11:25 Zhilin Li, Mississippi State University, USA:
" A hybrid numerical method for Stokes flow with moving interface "
11:25 - 11:50 Aristeu Silveira-Neto, Univ. Federal de Uberlandia, Brazil:
"Large-eddy simulation of turbulent flows"
11:50 - 12:15 Felipe Pereira, LNCC, Rio de Janeiro, Brazil:
"On the numerical simulation of transport-dominated diffusion processes in heterogeneous porous media"

Minisymposium: "Recent topics on nonlinear problems in Applied Science"
Chairperson: G. Perla Menzala

9:50 - 10:15 J.L. Boldrini, and E. Hernandez, IMECC, Unicamp, Campinas, Sao Paulo, Brazil:
"Global solutions for the equations of the flow of viscoelastic fluids with differential constitutive laws"
10:15 - 10:40 Carlos Conca, Departamento de Ingenieria Matematica, Universidad de Chile, Santiago, Chile:
"The Bloch transform and applications"

10:40 - 11:00 Break

11:00 - 11:25 Mario Duran, Ecole Polytechnique Federale de Lausanne, Switzerland, and Pontificia Universidad Catolica de Chile, Santiago, Chile:
"On bifurcations in a convection-difussion model describing a solidification system"
11:25 - 11:50 C. Dafermos, Brown University, Providence, RI, U.S.A.:
" Redistribution of damping"
11:50 - 12:15 Claudio Fernandez, Pontificia Universidad Catolica de Chile, Santiago, Chile:
" Resonances for nonlinear Schrodinger operators"
12:15 - 12:40 Jaime Munoz Rivera, Laboratorio Nacional de Computacao Cientifica, Rio de Janeiro, Brazil:
"Decomposition of energy and decay in viscoelasticity"

9:50 - 12:00 Minicourse on Introduction to Wavelets and Applications
Instructor: Sergio Zarantonello, Silicon Graphics, Mountain View, CA, USA.

12:40 - 2:00 Lunch

2:00 - 2:50 Luis Vicente, Univ. of Coimbra, Portugal:
" Solution of optimal control problems by trust-region interior-point algorithms "

Contributed papers I

2:50 - 3:10 Optimization of chemical processes under uncertainty "
G.M. Ostrovsky and Yu.M. Volin, Karpov Inst. Physical Chemistry, Moscow.
3:10 - 3:30 "On the numerical modelling of the transitional flow in rarefied gases"
Godela Scherer, Depto. de Computo Cientifico y Estadistica, Universidad Simon Bolivar, Caracas, Venezuela.
3:30 - 3:50 "A hybrid nonlinear least squares algorithm based on Krylov-secant updates for large scale tomography problems"
Hector Klie , INTEVEP, S.A., Caracas, Venezuela.

3:50 - 4:15 Break

4:15 - 4:35 "A two point anisotropic ray tracing using low storage optimization techniques," Debora Cores, Pedro Contreras, Reinaldo Michelena and Glen Fung, Intevep, Venezuela.
4:35 - 4:55 "An algorithm for general nonlinear least squares problems "
Maria C. Maciel and Adriana B. Verdiell, Universidad Nacional del Sur, Argentina.
4:55 - 5:15 "Control of linear structures subject to seismic excitations "
Fidel Jara Huanca, Universidad Nacional de Ingenieria, Peru.

Contributed papers II

2:50 - 3:10 "Asymptotic expansions and numerical approximation of the solution of non-linear degenerate boundary-value problems"
M.P. Carpentier and P.M.Lima, Departamento de Matematica, Instituto Superior Tecnico, Portugal.
3:10 - 3:30 "Gradient method with dynamical retards for large-scale optimization problems"
Francisco Luengo, Universidad del Zulia, Maracaibo, and Marcos Raydan, Universidad Central de Venezuela, Caracas.
3:30 - 3:50 "Solution of a non-strictly hyperbolic system from unidimensional chemotactic movement of bacteria"
Nelson Fernandez, UCV, Venezuela.

3:50 - 4:15 Break

4:15 - 4:35 "Large-eddy simulation of self similar mixing layers using pseudo-spectral methods"
J.H. Silvestrini, CPGMap/UFRGS, Brazil, P.Comte and M. Lesieur, LEGI, Grenoble, France.
4:35 - 4:55 "Internal fluid flows in rotation with a Neumann boundary condition for the pressure"
Obidio Rubio and Elba Bravo, Universidad Nacional de Trujillo, Peru.
4:55 - 5:15 "Convergence of approximate solutions of the Cauchy problem for a 2x2 nonstrictly hyperbolic system of conservation laws"
Luis Leon, Univ. Central de Venezuela.

Tuesday, September 9, 1997

8:30 - 9:20 R. Coifman, Dep. Math., Yale Univ., USA:
"Adapted waveform analysis as a numerical processing tool"

Minisymposium: "Computational fluid mechanics and applications"
Chairpersons: Jose Alberto Cuminato, Alexandre Roma, and Joao Luiz F. Azevedo

Session 2: Aerospace applications

9:20 - 9:45 Nide G.C.R. Fico Jr., Renato Viera, and Joao L.F.Azevedo, Instituto Tecnologico de Aeronautica, Sao Jose dos Campos, SP, Brazil:
"Three-dimensional transonic wind tunnel flow simulation including the effect of the wall slots"
9:45 - 10:10 Alvaro L. De Bortoli, Federal University of Rio Grande do Sul, Porto Alegre, Brazil:
"Three-dimensional supersonic flow analysis over the satellite vehicle launcher"

10:10 - 10:30 Break

10:30 - 10:55 Olympio A. F. Mello, Instituto de Aeronautica e Espaco, Sao Jose dos Campos - SP, Brazil, and Lakshmi N. Sankar, School of Aerospace Engineering, Georgia Institute of Technology, Atlanta, Georgia, U.S.A.:
"Zonal Navier-Stokes computations of transonic flow over a fighter wing"
10:55 - 11:20 Bento S. de Mattos, and Marcello A.S. Ferrari, Empresa Brasileira de Aeronautica S.A., Sao Jose dos Campos - SP, Brazil:
"Unstructured Navier-Stokes analysis of a low-wing twin jet aircraft with a large surveillance antenna"

Minisymposium: "Convection-diffusion equations and their approximations"
Chairpersons: Paulo Zingano and Stanly Steinberg

9:20 - 9:45 Paulo Zingano, UFRGS, Brazil:
"Long time behavior of convection-diffusion equations"
9:45 - 10:10 Bigyani Das and Matthew R. Myers, Hydrodynamics and Acoustics Branch, US FDA, Rockville, MD, USA:
"Numerical solution of convective diffusion equation for virus transport through pores"

10:10 - 10:30 Break

10:30 - 10:55 Christopher Bailey, M. Cross, and K. Pericleous, University of Greenwich, England:
"Discretisation methods for multiphysics phenomena "
10:55 - 11:20 Mariano Torrisi, Department of Mathematics, University of Catania, Italy:
"Equivalence transformations and symmetries for a non linear diffusion system"
11:20 - 11:45 S. C. Gupta, Dept. of Mathematics, Indian Inst. of Science, Bangalore, India:
" Analytical and numerical solutions of multidimensional Stefan problems"

Minisymposium: "Recent topics on nonlinear problems in Applied Science"
Chairperson: G. Perla Menzala

9:20 - 9:45 L. Vasquez, Universidad Complutense, Madrid, Spain:
"Application of the finite difference method in quantum theory"
9:45 - 10:10 E. Zuazua, Universidad Complutense, Madrid, Spain:
" Rates of decay in equations of convection-difussion"

10:10 - 10:30 Break

10:30 - 10:55 H. Frid, IMUFRJ, Rio de Janeiro, Brazil:
"Invariant regions under finite difference schemes for conservation laws"
10:55 - 11:20 Constantin Dafermos, Brown University, USA
"Redistribution of damping"
11:20 - 11:45 D. Figueiredo, Unicamp, Brazil
" On the Fucik spectrum for the p-Laplacian/I>"

` 12:00 - 2:00 Lunch

2:00 - 2:50 Carmen Arevalo, Universidad Simon Bolivar, Venezuela:
"Stabilization of multistep methods for DAEs"

Contributed papers III

2:50 - 3:10 "A measure of group interaction"
Kiran Chilakamarri, Indiana University-Purdue University at Fort Wayne, USA, and Nathaniel Dean, Bell Laboratories, Murray Hill, NJ, USA.
3:10 - 3:30 "Parallel approaches based on genetic algorithms for combinatorial optimization problems"
Jose Aguilar, Universidad de los Andes, Merida, Venezuela.
3:30 - 3:50 "Survey on control techniques and applications to flexible structures"
Jorge Luis Palacios Felix, Universidad Nacional de Ingenieria, Peru.

3:50 - 4:15 Break

4:15 - 4:35 "Numerical algorithms in shape optimization"
Jean Rodolphe Roche, INRIA-Lorraine, France.
4:35 - 4:55 "On the existence of Z4 x Z2**(k-2)-linear binary codes from the non-existence of Z(2**k)-linear binary codes, k>2"
Roberto Geronimo, CCE-UEM, Reginaldo Palazzo Junior, FEEC, Sueli Rodriguez Costa, SMECC, J. Carmelo Interlando, UNESP, and Paulo Brumatti, IMECC, Brazil.
4:55 - 5:15 "An interval domain logic"
Benedito Melo Acioly, and Benjamin R. Callejas Bedregal, Departamento de Informatica e Matematica Aplicada, Universidade Federal do Rio Grande do Norte, Natal-RN, Brasil.
5:15 - 5:35 "Computer aided design and performance analysis of a D-C motor drive controlled by a power-thrystor bridge rectifier"
Wlodzislaw Kostecki, The Papua New Guinea Univ. of Technology.

Contributed papers IV

2:50 - 3:10 "Finite volume modelling of free surface draining vortices"
E. Bertolazzi, W. Ferrari, B. Firmani, F. Trivellato, University of Trento, Italy.
3:10 - 3:30 " Magnitude retrieval from phase "
S. Urieli, M. Porat, R. Meshulam, Technion, Israel, and Nir Cohen, Department of Applied Mathematics, University of Campinas, Brazil.

4:15 - 4:35 " Phase retrieval from magnitude: new results "
Clarice Favaretto Salvador, Nir Cohen, and Alvaro R. De Pierro, Dept. of Applied Mathematics, University of Campinas, Brazil.

3:50 - 4:15 Break

4:15 - 4:35 "Solving the Kuramoto Sivaschinsky equation with wavelets: the periodic case "
Luz Myriam Echeverry, Universidad de los Andes, Bogota, Colombia.
4:35 - 4:55 "The discrete analogue of the Fucik spectrum of the Laplacian "
Pedro C. Espinoza, Universidad de Lima, Peru.

Wednesday, September 10, 1997

8:30 - 9:20 Anthony Vassiliou, Amoco Development Co., Tulsa, OK, U.S.A.:
To be delivered by R. Coifman, Dep. Math., Yale Univ., USA.
"Applications of data compression to seismic data acquisition and processing"

8:30 - 9:20 Miguel Cerrolaza, UCV, Caracas, Venezuela:
"Numerical methods in bioengineering design: current applications in traumatology and cardiology"

Minisymposium: Numerical methods in bio-engineering
Chairperson: Miguel Cerrolaza

9:20 - 9:45 Z. Maldonado (*), J. Bendayan (+), and M. Cerrolaza, (*) Bioengineering Center, (+) Hospital, Central University of Venezuela:
"Finite element analysis of geometric parameter variations of cemented Charnley hip prostheses"
9:45 - 10:10 Tortolero Mara V., Cesar Gonzalez F., Jose Bendayan, Miguel Cerrolaza, Bioengineering Center, and Guillermo Arribas, Polymer Laboratory, Facultad de Ciencias, Universidad Central de Venezuela:
" Controlled release of drugs from biodegradable microcapsules for the treatment of osteomyelitis and osteoporosis"

10:10 - 10:30 Break

10:30 - 10:55 M. Gudiel(*), C. Gonzalez(+), F. Carpentiero(++), and M. Cerrolaza, (*) Bioengineering Center, (+) Hospital, (++) School of Mechanical Engineering, Central University of Venezuela:
"A biomechanical analysis of a new external fixator designed for wrist joint fractures"
10:55 - 11:20 L. Videla(*), C. Gonzales(+), M. Cerrolaza, (*) Bioengineering Center, (+) Hospital, Central University of Venezuela:
"A finite element analysis of load transmission at bone by a new external fixator"
11:20 - 11:45 R. Landaeta(*), D. Aguilera(*), W. Annichiaricco(*), M. Herrera(+), M. Cerrolaza, (*) Bioengineering Center, Central University of Venezuela, (+) Vargas Hospital:
"Bidimensional analysis of blood flow in arteries, mechanical heart valves, and Stent devices based on lattice Boltzman's method for coronary artery disease treatment"
11:45 - 12:10 J. Bendayan, Hospital, and M. Cerrolaza, Bioengineering Center, Central University of Venezuela:
"A biomechanical measurement of load transmission forces at the ankle joint"

Minisymposium: "Computational fluid mechanics and applications"
Chairpersons: Jose Alberto Cuminato, Alexandre Roma, and Joao Luiz F. Azevedo

Session 3: Hybrid/adaptive methods

9:20 - 9:45 Alexandre M. Roma, Universidade de Sao Paulo, Brazil:
"A projection method for the Navier-Stokes equations on adaptively refined meshes"
9:45 - 10:10 J.R. Meneghini, and F. Saltara, Universidade de Sao Paulo, Brazil:
"Numerical simulation of vortex shedding from an oscillating circular cylinder"

10:10 - 10:30 Break

10:30 - 10:55 Luis Carlos de Castro Santos, Instituto de Matematica e Estatistica, Universidade de Sao Paulo, Brazil:
"A numerical method for the inverse solution of fluid flow equations"
10:55 - 11:20 Joao L.F. Azevedo, and Wladimyr M.C. Dourado, Centro Tecnico Aeroespacial, Sao Jose dos Campos - SP, Brazil:
"An unstructured grid implementation of a method suitable to a wide speed regime"

Minisymposium: "Grid generation and discretization methods"
Chairpersons: R. Vilsmeier, and Stanly Steinberg

9:20 - 9:45 Manoj S. Apte, Engineering Research Center, Mississippi State University:
"Parallel adaptive structured grid generation for complex multiblock domains. (PMAG)"
9:45 - 10:10 Pablo Barrera-Sanchez, and Jose Gerardo Tinoco Ruiz, Univ. Michoacana, Morelia, Mexico:
"The solution of the grid generation problem on complex irregular region"

10:10 - 10:30 Break


Minisymposium: "Convection-diffusion equations and their approximations"
Chairpersons: Paulo Zingano and Stanly Steinberg

9:20 - 9:45 I. Mishev, Dept. of Mathematics, Duke University, Durham, NC, USA:
"Finite volume element methods for convection-diffusion problems"
9:45 - 10:10 C. Liu, Dept. of Math. and Stat., Louisiana Tech Univ, Ruston, LA, USA:
"Direct numerical simulation of flow transition in compressible boundary layers around airfoils"
10:10 - 10:35 Beny Neta, Naval Postgraduate School, Monterey, CA, USA:
"Stability analysis for Eulerian and semi-Lagrangian finite element formulation of the advection-diffusion equation"
10:35 - 11:00 Marcelo Martins dos Santos, Departamento de Matematica, IMECC-UNICAMP, Campinas, SP, Brazil:
"Initial boundary value problem for conservation laws"

12:10 - 2:00 Lunch

AFTERNOON OFF

Thursday, September 11, 1997

8:30 - 9:20 R. Suaya, LETI, Grenoble, FRANCE:
"Simulation of 3D interconnect structures in ultralarge scale integrated systems"

8:30 - 9:20 Geovan Tavares dos Santos, Dept. Math., PUC-Rio, Brazil:
" Computational representation of surfaces and volumes "

Minisymposium: "Modeling: geometry, dynamics and image"
Chairperson: Geovan Tavares dos Santos

9:20 - 9:45 Antonio Castelo, Universidade de Sao Paulo at Sao Carlos, Brazil:
"Adaptive polygonization of implicit surfaces"
9:45 - 10:10 Rubens Sampaio, PUC-Rio:
"Dynamics of flexible bodies: New developments in mechanics"

10:10 - 10:30 Break

10:30 - 10:55 Marco Antonio Grivet, PUC-Rio, Brazil:
"Modeling digital terrain I: The acquisition point of view "
10:55 - 11:20 Helio Lopes, PUC-Rio, Brazil:
" Modeling digital terrain II: The geometric modeling point of view"
11:20 - 11:45 Marcos Craizer, PUC-Rio, Brazil:
"Image compression using wavelets"

Minisymposium: "Grid generation and discretization methods"
Chairpersons: R. Vilsmeier, and Stanly Steinberg

9:20 - 9:45 C.Plazinski, Univ-Valenciennes, France:
"An automated grid generation technique based on a cartesian domain decomposition"
9:45 - 10:10 Rosa Maria Spitaleri, Istituto per le Applicazioni del Calcolo, Roma, Italy:
"Computational advances in multigrid grid generation"

10:10 - 10:30 Break

10:30 - 10:55 Le Ngoc Ly, Naval Postgraduate School, Monterey, CA, USA, and Phu Luong, NAVOCEANO, Stennis Space Center, MS 39529 USA.
"On a coastal ocean circulation system with numerical grid generation and surface waves, and its South China sea simulation,"
10:55 - 11:20 R. Vilsmeier, Institut fur Verbrennung und Gasdynamik, Uni Duisburg, Germany:
"Automatic hybrid grid generation for CFD - motivations and strategies -"
11:20 - 11:45 F. Benkhaldoun, and I. Elmahi, Laboratoire de Mathematiques de l'INSA, Rouen UPRES-A CNRS 6085, Place Emile Blondel, 76131 Mont-Saint-Aignan, France:
"Adaptive finite volume computation of droplet flame ignition on unstructured meshes"

Minisymposium: "Computational fluid mechanics and applications"
Chairpersons: Jose Alberto Cuminato, Alexandre Roma, and Joao Luiz F. Azevedo

Session 4: Parallel processing and L.E.S.

9:20 - 9:45 Roberto F. Bobenrieth Miserda, Departamento de Engenharia Mecanica, Universidade de Brasilia, Brazil:
"Large eddy simulation of turbulent flows using a compressible formulation for low Mach numbers"
9:45 - 10:10 U.Z. Calderon, A.L. De Bortoli, and R.D. Da Cunha, Department of Pure and Applied Mathematics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil:
"Numerical simulation of the unsteady flow in a rotating cavity"

10:10 - 10:30 Break

10:30 - 10:55 Maurilio Boaventura, Universidade Estadual de Sao Paulo, Sao Jose do Rio Preto, and Jose A. Cuminato, Universidade de Sao Paulo, Instituto de Ciencias Matematicas de Sao Carlos, SP - Brazil:
"Parallel solution of free surface flow problems"

Minisymposium: "Computational modeling of neutral particle transport"
Chairpersons: Liliane Barichello and Ricardo Barros

9:20 - 9:45 Roberto D. Garcia, IEN/CTA, Brazil:
"The F_N method in transport theory "
9:45 - 10:10 Roberto D. Garcia, IEN/CTA, Brazil:
"The P_N method in transport theory "

10:10 - 10:30 Break

10:30 - 10:55 Ricardo C. de Barros, IPRJ/UERJ, Brazil:
"On the equivalence of discontinuous finite element methods and discrete ordinate methods for the angular discretization of the linearized Boltzman equation in slab geometry "
10:55 - 11:20 Marco Tulio Vilhena, UFRGS, Brazil:
"A closed-form solution for one-dimensional linear and nonlinear discrete ordinate problems"
11:20 - 11:45 Wilson J. Vieira, IEA/CTA, Brazil:
"Current developments in Monte Carlo radiation transport : theory and applications"
11:45 - 12:10 Charles E. Siewert, Univ. of North Carolina, USA:
"A computation of the X and Y functions for a nongrey model with complete frequency redistribution"
12:10 - 12:35 V.C. Boffi, University of Rome "La Sapienza":
"Nonlinear particle transport theory: problems, perspectives and links with continuum mechanics"

12:35 - 2:00 Lunch

2:00 - 2:50 Victor Pereyra , Weidlinger Associates, Los Altos, California, USA:
" Nonlinear travel time inversion for 3D petroleum exploration"

Contributed papers V

2:50 - 3:10 "Code orderings for the solution of sparse positive definite linear systems "
Ricardo Duarte Arantes, LNCC, Rio de Janeiro, Brazil.
3:10 - 3:30 " Stability of triangular matrix inclusion systems "
L. Rodman, College of William and Mary, U.S.A., I. Lewkowicz, Ben Gurion University, Israel, and Nir Cohen, Department of Applied Mathematics, University of Campinas, Brazil.
3:30 - 3:50 "Some new properties of the equality constrained and weighted least squares problem "
Alvaro R. De Pierro, Dept. of Applied Mathematics, University of Campinas, Brazil, and Musheng Wei, East China Normal University, Shanghai, China.

3:50 - 4:15 Break

4:15 - 4:35 "Upper perturbation bounds of weighted projections, weighted and constrained least squares problems "
Musheng Wei, East China Normal University, Shanghai, China, and Alvaro R. De Pierro, Dept. of Applied Mathematics , University of Campinas, Brazil.
4:35 - 4:55 "Adaptive least square fitting using B-splines for observational data "
Ronaldo Dias, Dept. of Statistics, University of Campinas, Brazil.
4:55 - 5:15 "Approximate Gaussian distributions in optimization by random perturbation methods"
J. E. Souza de Cursi, INSA-Rouen, France, and M. B. de Souza Cortes, Dept. of Statistics, State University of Maringa, Brazil
5:15 - 5:35 " Use of spline collocation and Krylov in the simulation of a high-pressure ethylene reactor"
Fabiola A. Pereira and Argimiro R. Secchi, UFRGS, Porto Alegre, Brazil.

Contributed papers VI

2:50 - 3:10 "A-posteriori estimators for nonlinear elliptic partial differential equations"
Felix C. G. Santos, Department of Mechanical Engineering, Universidade Federal de Pernambuco, Recife, Brazil.
3:10 - 3:30 "The completely conservative difference schemes for the nonlinear Fokker-Planck kinetic equations"
Irina Potapenko, Keldysh Institute of Applied Mathematics, Russian Academy of Science (on leave), and C. A. de Azevedo, Physics Institute, State University of Rio de Janeiro, Brazil.

3:30 - 3:50 " Euler solvers as an analysis tool for practical aerodynamical configurations"
Alvaro Luiz De Bortoli, UFRGS, Porto Alegre, Brazil.
3:50 - 4:15 Break

4:15 - 4:35 "A complete double-layer numerical solution of Dirichlet's problem for Helmholtz equation outside a torus"
Guillermo Miranda, and C. Daza, Departmento de Matematicas, Facultad de Ciencias, Universidad Central de Venezuela.
4:35 - 4:55 " Radiative transfer computations in cylindrical coordinates: a parallel implementation of the discrete ordinates method "
A. Sanchez, P. Guillen, and C. Torres, Escuela de Ingenieria Mecanica, Universidad de Los Andes, Merida, Venezuela.
4:55 - 5:15 "A numerical procedure for solving non-linear singularly perturbed problems"
Lilliam Alvarez Diaz, Instituto de Cibernetica, Matematica y Fisica, Agencia de Informacion, Danys Sanchez Dominguez, Instituto Superior de Ciencias y Tecnologia Nuclear, Agencia Nuclear, and Ignacio Julio Sanchez Gutierrez, Instituto de Cibernetica, Matematica y Fisica, Agencia de Informacion, CITMA, Cuba.

5:15 - 5:35 "Numerical simulation of the flow past a sphere in vertical motion within an stratified fluid"
Carlos R. Torres, Instituto Inv. Oceanologicas, UABC, Jose Ochoa, CICESE, Ensenada, Mexico, Jose Castillo, San Diego State University, USA, and Hideshi Hamazaki, Nat. Inst. Environmental Studies, Japan.

6:00 - 8:00 Seminario: " Parallel programming techniques" ;
Instructor: Gerardo Cisneros, Silicon Graphics, S.A. de C.V. (Cray Research), Mexico.

Friday, September 12, 1997

8:30 - 9:20 B. Chen, Univ. of Wyoming, USA:
"Numerical simulation of biofilm growth in porous media"

Minisymposium: "Flow and bio-transformations in porous media"
Chairperson: B. Chen

9:20 - 9:45 Myron B. Allen, Benito Chen, and Hristo Kojouharov, Dept. Math., Univ. Wyoming, USA:
"Numerical solution of reaction-diffusion problems in porous media"
9:45 - 10:10 Jim Douglas, Jr., Frederico Furtado, and Felipe Pereira, Depth. Math., Univ. Wyoming, USA:
"A numerical study of dispersive fluid mixing in multiscale heterogeneous porous media"

10:10 - 10:30 Break

10:30 - 10:55 Richard Ewing, Inst. for Scient. Computation, Texas A&M Univ., USA:
"Mathematical modeling and simulation for applications of fluid flow in porous media"
10:55 - 11:20 Hector Juarez, Depart. Matematicas, UAM Iztapalapa, Mexico:
"Numerical simulation of flow past rotating cylinders by high order finite element methods"
11:20 - 11:45 C. Cortazar, M. del Pino and M. Elgueta,Departamento de Matematicas, Universidad Catolica, Santiago, Chile:
"The blow up set for the porous medium equation with a source"

8:30 - 9:20 Denise Grune Ewald, General Director, Centro Nacional de Supercomputacao,
Universidade Federal do Rio Grande do Sul, Brazil:
"Making supercomputing technology accessible: The CESUP-RS experience"

Minisymposium: "Supercomputing applications and vizualization"
Chairperson: S. Zarantonello

9:20 - 9:45 Alvaro L.G.A. Coutinho, COPPE/Federal University of Rio de Janeiro, Brazil:
"High performance engineering computations at NACAD-COPPE/UFRJ "
9:45 - 10:10 Andre Luiz Battaiola, Departamento de Computacao, Universidade Federal de Sao Carlos, Brazil:
"A parallelization of a well vectorized marching cube algorithm "

10:10 - 10:30 Break

10:30 - 10:55 Gerardo Cisneros, Silicon Graphics, S.A. de C.V. (Cray Research), Mexico:
"High performance computing at SG/Cray"
10:55 - 11:20 Sergio Zarantonello, Silicon Graphics, Mountain View, CA, USA:
"Trends in HPC architecture"
11:20 - 11:45 Jairo Panetta, IEAv-CTA, Sao Jose dos Campos, SP, Brazil:
"Trends on programming high performance computers"
11:45 - 12:30 Round table. Moderators: Denise Grune Ewald and S. Zarantonello.

Minisymposium: "Computational fluid mechanics and applications"
Chairpersons: Jose Alberto Cuminato, Alexandre Roma, and Joao Luiz F. Azevedo

Session 5: Recent developments

9:20 - 9:45 C.R. Maliska, A.O. Czesnat, R.M. Lucianetti, and C.R. Maliska Jr., Computational Fluid Dynamics Laboratory, UFSC, Florianopolis, SC, Brazil:
"SIRP3D: A fully object oriented code for three-dimensional multiphase petroleum reservoir simulation"
9:45 - 10:10 L.C. Catabriga, M.A.D. Martins, A.L.G.A. Coutinho, and J.L.D. Alves, Center for Parallel Computations and Dept. of Civil Engineering, COPPE/Federal University of Rio de Janeiro, Brazil:
"Edge-based preconditioners for non-symmetric finite element equations"

10:10 - 10:30 Break

10:30 - 10:55 Armando M. Awruch, Ricardo L. Azevedo, Paulo R.F. Teixeira, Universidade Federal do Rio Grande do Sul, Porto Alegre, Maria A.V. dos Santos, Departamento de Materiais e Construcao, Fundacao Universidade de Rio Grande, Adriane P. Petry, DEMEC/EE/UFRGS, Porto Alegre, and Luis A.S. Gonzalez, DECIV/EE/UFRGS, Porto Alegre, Brazil:
"On the computational simulation of transient dynamic fluid-structure interaction"
10:55 - 11:20 Osni Marques, Lawrence Berkeley National Laboratory, CA, USA:
" Large scale SVD computations in linear geophysical inverse problems"

12:00 - 2:00 Lunch

2:00 - 4:00 Seminario: " Parallel programming techniques"
Instructor: Gerardo Cisneros, Silicon Graphics, S.A. de C.V. (Cray Research), Mexico.

2:00 - 2:50 Jose E. Castillo, San Diego State University, San Diego CA, USA:
" Direct optimization grid generation "

Contributed papers VII

2:50 - 3:10 " On the convergence of quasi-Newton methods for nonlinear complementarity problems"
Vera L. Rocha Lopes, J. Mario Martinez and Rosana Perez, Department of Applied Mathematics, University of Campinas, Brazil.
3:10 - 3:30 "The shape of the reproductive schedule distribution and its effects on stability"
Jacques A. Loureiro da Silva, UFRGS, Porto Alegre, Brazil.
3:30 - 3:50 "A new class of preconditioners for the linear systems arising from interior point methods for linear programming"
Aurelio R. L. de Oliveira and D. C. Sorensen, Department of Computational and Applied Mathematics, Rice University, Houston, Texas, USA.

3:50 - 4:15 Break

4:15 - 4:35 "A-posteriori estimators for nonlinear elliptic partial differential equations"
Felix C. G. Santos, Department of Mechanical Engineering, Universidade Federal de Pernambuco, Recife, Brazil.
4:35 - 4:55 "A real numbers data type specification"
Regivan H. Nunes Santiago, Departamento de Informatica, Universidade Federal de Pernambuco, Recife, Brasil, and Benedito Melo Acioly, Departamento de Informatica e Matematica Aplicada, Universidade Federal do Rio Grande do Norte, Natal-RN, Brasil.
4:55 - 5:15 "Optimization of the gas injection rates for a group of continuous gas lift wells"
G. Alarcon, A. Sanchez, and C. Torres, Escuela de Ingenieria Mecanica, Universidad de Los Andes, Merida 5101 - Venezuela.
5:15 - 5:35 "Total variation methods for finding non-smooth solutions to the inverse gravimetric problem"
Hugo Bertete Aguirre, Elena Cherkaeva, and Aaron Fogelson, University of Utah, Salt Lake City, UT, U.S.A.

Contributed papers VIII

2:50 - 3:10 " Different direct methods associated to the inverse problem of estimating the initial condition for the heat equation"
Wagner B. Muniz, UFRGS, Porto Alegre, Haroldo F. de Campos Velho, and Fernando M. Ramos, LAC/INPE, SJ dos Campos, Brazil.
3:10 - 3:30 " Convergence in transport theory"
Ruben Panta Pazos, and Marco T. de Vilhena, UFRGS, Porto Alegre, Brazil.
3:30 - 3:50 "Consistent initialization strategies in the dynamic simulation of flow systems"
Evaristo C. Biscaia Jr. and Roberta C. Vieira, COPPE/UFRJ, Rio de Janeiro, Brazil.

3:50 - 4:15 Break

4:15 - 4:35 "Spherical convergence for projection methods "
T. Kotzer, Technion, Israel, and Nir Cohen, Dept. of Applied Mathematics, University of Campinas, Brazil.
4:35 - 4:55 "Solution of the linear complementarity problem with an homotopy approach"
Juan Manuel Otero Pereira, Department of Applied Mathematics, University of Havanna, Cuba.

THE END