Ales Janka

Education, research

research resume and extended CV in PDF

2006-now

Université de Fribourg (Switzerland), Math

assistant-docteur, chargé de cours

2004-2006

EPFL Lausanne (Switzerland), IACS - ASN

Post-Doc: Fast iterative solvers for problems of aluminium production (incompressible flows, ferromagnetism)

2003-2004

INRIA Sophia Antipolis (France), OPALE

Post-Doc (14 months): Shape optimisation of 3D aerodynamic bodies in supersonic and transonic regimes,

2002

INRIA Sophia Antipolis (France), SMASH

Post-Doc (10 months): Automated coarsening of 3D anisotropic (boundary-layer) meshes for geometric multigrid,

1998-2002

INRIA Sophia Antipolis (France), SINUS

PhD in Applied Mathematics,
defended on March 1, 2002
Multigrid methods for compressible fluids

1993-1998

University of Pilsen, (Czech Republic)

Five-year master's degree in engineering
Faculty of Applied Science, Numerical Maths
Schwarz overlapping domain decomposition with coarse-space appropriate for linear elasticity

1996-1997

Hull University, (Great Britain)

TEMPUS exchange programme (6 months)

For students

• Algèbre linéaire I et II, exercices
• Mécanique des milieux continus I et II, cours
• Optimisation de formes, séminaire thématique

Publications and talks

Reviewed articles and theses

• Jean-Antoine Désidéri, Badr Abou el Majd, Ales Janka: Nested and self-adaptive Bézier parameterizations for shape optimization, Journal of Computational Physics 224, no. 1 (2007), 117-131 DesideriAbouElMajdJanka07.pdf (364 kB), Elsevier online link.
• Hervé Guillard, Ales Janka and Petr Vanek: Analysis of an algebraic Petrov-Galerkin smoothed aggregation multigrid method, Applied Numerical Mathematics, (November 2007), GuillardJankaVanek06.pdf (250 kB). Elsevier online link.
• Ales Janka: Smoothed aggregation multigrid for a Stokes problem, Computing and Visualization in Science 11, no. 3 (2008), 169-180, stokesAMG.ComputVisSci.pdf (760 kB), Springer online link.
• Ales Janka: A domain decomposition solver for ferromagnetism, Mathematics and Computers in Simulation 76, no. 1-3 (2007), 86-93, ferropaper.pdf (1.1 MB), Elsevier online link.
• Ales Janka: A flux correction multigrid for compressible flow, Numer. Algorithms. 33 (2003), 319-330, numeralgor.pdf.
• Ales Janka: Multigrid methods for compressible laminar flow, PhD thesis, French version, English version, INRIA Sophia Antipolis, March 2002. Presentation phd_slides.pdf (4.7 MB, in English).
• Ales Janka: Algebraic domain decomposition solver for linear elasticity, Appl. Math., 44 (1999), No. 6, 435-458, applmath.pdf, (1.2MB).
• Ales Janka: Overlapping Schwarz Domain Decomposition with Coarse Space Appropriate to Linear Elasticity, University of West Bohemia, master thesis 1998, diplomka.pdf (1.4MB).

Research reports

• Michel Flück, Thomas Hofer, Ales Janka, Jacques Rappaz: Numerical methods for ferromagnetic plates, Institute of Analysis and Scientific Computing EPFL, Research report Nr. 08.2007, EPFL, December 2007.
• Michele Andreoli, Ales Janka, Jean-Antoine Desideri: Free-form-deformation parameterization for multilevel 3D shape optimization in aerodynamics, INRIA Research Report no. 5019, November 2003.
• Latifa Oulladji, Ales Janka, Jean-Antoine Desideri and Alain Dervieux: Optimisation aerodynamique par algorithmes genetiques hybrides: application a la reduction d'un critere de bang sonique, INRIA Research Report no. 4884, July 2003.
• Xuejun Xu, Ales Janka and Jean-Antoine Desideri: Cascadic multigrid for the advection-diffusion equation, INRIA Research Report no. 4574, October 2002.
• Petr Vanek, Ales Janka and Hervé Guillard: Convergence of Algebraic Multigrid Based on Smoothed Aggregation II: Extension to a Petrov-Galerkin Method, INRIA Research Report no. 3683, May 1999.

Presentations at international conferences

• Smoothed aggregation multigrid for incompressible flows, in: The Sixth International Congress on Industrial and Applied Mathematics (ICIAM'07), Zürich, Switzerland, July 16-20, 2007; iciam07_slides.pdf.
• Algebraic multigrid method by smoothed agglomeration for a Stokes problem, in: The Eighth European Multigrid Conference, Scheveningen Den Haag, The Netherlands, September 27-30, 2005; emg_slides.pdf.
• A domain decomposition solver for ferromagnetism, in: The Third IMACS conference on Mathematical Modelling and Computational Methods in Applied Sciences and Engineering, 4-8 July 2005 Pilsen, Czech Republic; ferro_abstract.pdf.
• Inverse Shape Optimization Model Problems and Multi-Level Geometrical Optimization Methods, in: International Conference on Control, PDEs and Scientific Computing, Beijing, PR China, September 13-16 2004; with J-A.Desideri, J-P.Zolesio, B.Abou-el-Majd; desideri-lionsconf2004.pdf.
• Multipoint Aerodynamic Optimization of A Transonic Business Jet Wing, in: European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, Finland, 24-28 July 2004; with D.Pinelli, G.Sacco, C.Lanari (Piaggio-Aero) and J-A.Desideri (INRIA).
• Multilevel Shape Parameterization for Aerodynamic Optimization - Application to Drag and Noise Reduction of Transonic/Supersonic Business Jet, in: European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004, Jyvaskyla, Finland, 24-28 July 2004; with J-A.Desideri; desideri-janka-eccomas.pdf.
• Free form deformation for multi-level 3D parallel optimization in aerodynamics, in: International Parallel CFD Conference Proceedings, University of Las Palmas, Gran Canarias, Spain, May 24-27 2004; with M.Andreoli, J-A.Desideri and T.Nguyen.
• Hierarchical Parametrization for Multilevel Evolutionary Shape Optimization with Application to Aerodynamics, talk at the ECCOMAS thematic conference EUROGEN 2003, Evolutionary Methods for Design, Optimisation and Control with Applications to Industrial Problems, September 2003, Barcelona (Spain); with J-A.Desideri; eurogenBezier.ps.gz.
• Experiments with Hybridized Genetic Algorithms in Aerodynamics, talk at the ECCOMAS thematic conference EUROGEN 2003, Evolutionary Methods for Design, Optimisation and Control with Applications to Industrial Problems, September 2003, Barcelona, Spain; with Y.Berard, J-A.Desideri, A.Habbal and L.Oulladji; eurogenGA.pdf.
• Aerodynamic wing-shape optimization by an adaptive multi-level algorithm, talk at the European Conference on Numerical Mathematics and Advanced Applications, ENUMATH 2003, August 2003, Prague (Czech Republic); with J-A. Desideri; enumath_abstract.pdf.
• A volume agglomeration multigrid by flux correction for Navier-Stokes equation, talk at the International Conference on Numerical Algorithms, Marrakech (Marocco), October 2001; marrakech_proceed.ps.gz,(1.38MB).
• A volume agglomeration multigrid method using flux correction, talk at the Second IMACS International Conference on Modelling 2001, Plzen (Czech Republic), June 2001; submitted to Mathematics and Computers in Simulation, Elsevier, plzen_proceed.elsart.ps.gz, (916kB).
• Algebraic multigrid for compressible Navier-Stokes, talk in Parallel Algoritms and Numerical Methods 10, June 2000, Czech Academy of Science, Prague; panm.ps.gz, (240kB).
• Une methode d'aggregation lissee de type Petrov-Galerkin, poster at 31e Congres d'Analyse Numerique CANUM'99, Ax-les-Thermes (France), May 1999; with Hervé Guillard.

Unpublished preprints

• Ales Janka: Development of multigrid methods for convergence accelerations of solvers for Navier-Stokes equations on unstructured meshes, First work-in-progress report, Dassault contract no. 42G01441, ref. AW/MIT, dassault1.pdf, August 2002.
• Ales Janka: Development of multigrid methods for convergence accelerations of solvers for Navier-Stokes equations on unstructured meshes, Second work-in-progress report, Dassault contract no. 42G01441, ref. AW/MIT, dassault2.pdf, November 2002.
• Ales Janka and Hervé Guillard: Developpement et tests de méthodes multigrilles pour l'acceleration de la convergence des méthodes de résolution des équations de Navier-Stokes sur maillages non-structurés, Final report, Dassault contract no. 42G01441, ref. AW/MIT, dassault3.pdf, April 2003.
• Ales Janka: Multigrid for finite volumes: structured 2D case, volume_aglomer.pdf, July 2001.
• Ales Janka: Analysis of an unstructured finite volume method, fvm.pdf, July 2001.