Presentations
[Invited Plenary
Presentations at Conferences] [Selection of
Contributed and Minisymposia Presentations]
Invited Presentations at
Conferences and
Colloquia
Operator preconditioning, discretization and decomposition into subspaces,
PANM, Hejnice, June 2018
[download]
Decomposition into subspaces and operator preconditioning,
ICMS, Edinburgh, April 2018
[download]
On an old article and its many connections, 16th Conference of the Czech Mathematical Society,
Prague, February 2018
[download]
Sparsity, discretization, preconditioning and
adaptivity in solving linear equations,
XX. Householder Symposium, Blacksburg, VA, June 2017. [download]
Krylov subspace methods from the analytic,
application and computational perspective, Boeing
Distringuished Colloquia in Applied Mathematics,
May 2016. [download]
Sparsity, Local and Global Information in the
Numerical Solution of PDEs, BIRS Workshop on
Sparse Representations, Numerical Linear Algebra and
Optimization, Banff, September 2014.[download]
Preconditioning and the CG method in the context
of solving PDEs, Symposium in honour of Martin
Gutknecht, Lausanne, September 2014.[download]
On preconditioned Krylov subspace methods in
numerical PDEs, Keynote lecture, Domain
Decomposition Methods for Optimization with PDE
Constraints, CSF, Ascona, September 2013. [download]
Functional Analysis and Iterative Algebraic
Computations. There and Back Again, Preconditioning
of Iterative Methods - Theory and Applications,
Conference in Honor of Ivo Marek, Prague, July
2013. [download]
Bits of scattered (summarizing?)
comments, BIRS Workshop Model reduction
in continuum thermodynamics: Modeling,
analysis and computation, Banff, September
2012.
Moments, Model Reduction and
Nonlinearity in Solving Linear Algebraic
Problems , 16th International
Linear Algebra Society Meeting, Pisa, June
2010. [download]
Spectral Information and Krylov
Subspace Methods , Linear and
Nonlinear Eigenproblems for PDEs,
Mathematisches Forschunginstitute
Oberwolfach, August 2009. [download]
[download]
Analysis of Krylov subspace
methods: Moments, error estimators,
numerical stability and unexpected
consequences , Winter School:
New Trends in Scientific Computing,
CIRM, Luminy, February 2009. [download]
Numerical linear algebra and some
problems in computational statistics
, IASC2008, Yokohama, December
2008. [download]
Nonlinear Problems in Analysis
of Krylov Subspace Methods ,
The CFG Conference on Optimization,
Heidelberg, September 2007. [download]
Core Problem Theory in Linear
Approximation Problems , The
IMA Conference on Applied Linear
Algebra and Optimization, Birmingham,
September 2007. [download]
On unexpected consequences of
numerical stability analysis of
Krylov subspace methods, 22nd
Biennial Conference on Numerical
Analysis, Dundee, June 2007. [download]
On sensitivity of Jacobi
matrices to spectral data and
related problems , Structured
Perturbations and Discrete Problems in
Matrix Computations, Bedlewo, March
2007 (due to unforeseen absence the
lecture was not delivered). [download]
Lanczos tridiagonalization,
Krylov subspaces and the problem of
moments, Numerical Linear
Algebra in Signals and Systems, Porto
Giardino, Monopoli (Bari), September
2006. [download]
Bidiagonalization as a
fundamental decomposition of data in
linear approximation problems,
Fourth Total Least Squares and
Errors-in-Variables Modeling Workshop,
Leuven, August 2006. [download]
Core problems in Ax ~ b -
analysis of TLS revisited, XVI.
Householder Symposium, Seven Springs,
May 2005 (due to unforeseen absence
the lecture was presented by Chris
Paige). Presented also at The
International School on Image
Deblurring, Monopoli, Bari, September
2005. [download]
On Numerical Stability in Large
Scale Scientific Computations,
75th GAMM Annual Scientific
Conference, Dresden, March 2004. [download]
Intriguing Behaviour of Krylov
subspace methods, Dagstuhl
Seminar "Theoretical and Computational
Aspects of Matrix Computations",
Dagstuhl, October 2003. [download]
Eigenvalue-Eigenvector Structure
and Approximation Problems in GMRES
Residual Bounds, XV. Householder
Symposium, Peebles, June 2002. [download]
On the History and Presence of
Error Estimation in the Conjugate
Gradient Method, Latsis
Symposium 2002, Iterative Solvers for
Large Linear Systems, Zurich, February
2002. [download]
Mathematical Foundations of the
Total Least Squares Revisited,
ROBUST' 2002, Hejnice, January 2002.
Scaled Total Least Squares
Problem and Numerical Stability of
Modified Gram-Schmidt GMRES,
GAMM Workshop on Numerical Linear
Algebra, Technical University of
Berlin, Germany, September 2001. [download]
Bounds for the Least Squares
Residual Using Scaled Total Least
Squares, Third International
workshop on TLS and
Errors-in-Variables Modeling,
Katholieke Universiteit Leuven
(Heverlee), Belgium, August 2001. [download]
Convergence of Krylov Subspace
Methods, MIDWEST NA Day, UIUC,
Urbana-Champaign, May 2001.
Orthogonality in MGS Arnoldi and
Convergence of GMRES, Matrix
Iterative Analysis and
Biorthogonality, Luminy, France, Sept.
2000. [download]
Construction, Application and
Understanding of Krylov Subspace
Methods, Algoritmy 2000, Vysoke
Tatry, Slovakia, Sept. 2000. [download]
Correspondence between Exact
Arithmetic and Finite Precision
Behaviour of Krylov Space Methods,
XIV. Householder Symposium on
Numerical Linear Algebra, Whistler,
BC, June 1999. [download]
GMRES and Relation between Total
Least Squares and Least Squares
Problems, Conference in Honor of
Richard Varga's 70th Birthday, Kent
State University, Kent, Ohio, March
1999.
Role of Orthogonality in the
Convergence of the Krylov Space
Methods, Numerical Linear
Algebra and Scientific Computing,
Mathematisches Forschunginstitute
Oberwolfach, April 1997.
Eigenvalues and Convergence of
Krylov Space Methods,
International linear Algebra Year
1995-96, Workshop Eigenvalues and
Beyond, CERFACS, Toulouse, France,
Oct. 1995.
Numerical Stability of GMRES,
Numerical Linear Algebra with
Applications, Mathematisches
Forschunginstitute Oberwolfach, April
1994.
Current Trends in Numerical
Linear Algebra: From Theory to
Practice (part I), SOFSEM'94,
Milovy, November 1994.
Rounding Errors in the Gauss
Quadrature Calculations and in
Computing Continued Fractions,
XII. Householder Symposium on
Numerical Linear Algebra, Lake
Arrowhead, June 1993.
Courses at
International Schools and Compact
Graduate Courses
Krylov subspace methods from the
historical, analytic, application,
and high performance computing
perspective, PRACE Course on
Parallel Linear Algebra, Ostrava,
Czech Republic, January 2017[download]
Matrix iterative methods from the
historical, analytic, application,
and computational perspective, A
five-lecture IDGK1754 Compact Course,
Technical University Munich, Germany,
November 2016. [download]
Krylov subspace methods, their
analysis and applications, A
five-lecture IDGK Compact Course,
University of Heidelberg, Germany,
February 2016.
Modern methods of numerical
linear algebra - principles, trends
and open problems , A
ten-lecture course at "The Seminar on
Differential Equations", Kamenice,
Czech Republic, May 2008. [download]
Analysis of Krylov subspace
methods , A six-lecture course
at The International School "Numerical
Linear Algebra and its Applications",
Monopoli, Bari, September 2003.
Convergence and Numerical
Behaviour of the Krylov Space
Methods, NATO ASI Course
Algorithms for Large Scale Linear
Algebraic Systems: State of the Art
and Applications in Science and
Engineering (two lectures), Gran
Canaria, Spain (June - July 1996).
Selection
of Minisymposia and Contributed
Presentations
Gauss quadrature, Still a
problem? 11th
Workshop on Mathematical Modeling,
Constanta, October,
2016.[download]
Principles of Krylov subspace
methods, 7ECM
Congress, Berlin, July
2016.[download]
Krylov subspace methods and
exascale computations: a good
match or a lost case? SPPEXA
Annual Meeting 2016, Munich,
January 2016.[download]
On Operator and Matrix View
to Preconditioned Iterative
Methods, New Directions in
Numerical Computations,
Conference in Honor of Nick
Trefethen, Oxford, August 2015. [ download]
On operator and matrix
description of Iterative
Methods, ICIAM 2015,
Beijing, August 2015.[download]
Questions on the Concepts of
Numerical Stability in Krylov
Subspace methods, 26th
Biennial Conference on Numerical
Analysis, Strathclyde, June 2015.
[download]
On the Vorobyev Method of
Moments, Conference in Honor
of Volker Mehrmann, Berlin, May
2015. [download]
Vorobyev Method of Moments,
Model Reduction, Convergence,
Computation, HPCSE 2015,
Solan, May 2015. [download]
On the interplay between
discretization and
preconditioning of Krylov
subspace methods, 4th IMA
Conference on Numerical Linear
Algebra and Optimization,
Birmingham, September 2014. [download]
Algebraic preconditioning as
transformation of discretization
bases, GAMM Annual Meeting,
Erlangen, March 2014.[download]
Remarks on algebraic
computations within numerical
solution of partial differential
equations, Invited lecture,
EQUADIFF 2013, Prague, August
2013. [download]
On adaptivity, convergence
and inexact computations in
numerical solution of partial
differential equations, ENUMATH
2013, Minisymposium Current trends
in numerical linear algebra,
Lausanne, August 2013. [download]
Challenges in analysis of
Krylov subspace solvers ,
SIAM Conference on Applied Linear
Algebra, Minisymposium Recent
advances in fast iterative
solvers, Valencia, July 2012. [download]
Matching moments and matrix
computations, Scientific
Computing 2011, Conference in
honor of Claude Brezinski and
Sebastiano Seatzu, Sardinia,
August 2011. [download]
On the continuous problem
context of matrix computations,
17.th ILAS Conference,
Braunschweig, August 2011. [download]
On evaluating computational
cost and approximation error in
linear algebraic problems,
Foundations of Computational
mathematics, Workshop on Numerical
Linear Algebra, Budapest, July
2011. [download]
Matching moments and matrix
computations, XVIII.
Householder Symposium, Tahoe City,
June 2011. [download]
Golub - Kahan iterative
bidiagonalization and revealing
noise in the data , SIAM
Conference on Applied Linear
Algebra, Minisymposium Krylov
subspace methods for discrete
inverse problems, Monterey,
October 2009. [download]
On the RCWA method for
computing solutions of Maxwell's
equations for a rectangular
grating'' , LMS Durham
Symposium "Computational Linear
Algebra for Partial Differential
Equations", Durham, July 2008. [download]
Sensitivity of the
Gauss-Christoffel quadrature and
sensitivity of the Jacobi matrix
to small perturbations of the
spectral data'' , XVII.
Householder Symposium, Zeuthen,
June 2008 [download]
Lanczos tridiagonalization
and Golub - Kahan
bidiagonalization: Ideas
connections and impact ,
GAMM-SIAM Conference on Applied
Linear Algebra, Minisymposium on
history of applied and numerical
linear algebra, Dusseldorf, July
2006. [download]
Stability and stopping
criteria in iterative methods
for linear algebraic systems ,
PANM13 in honor of Prof. Ivo
Babuska, Prague, May 2006. [download]
Stopping criteria in
iterative methods - a
miscellaneous issue? , GAMM
Annual Meeting, Berlin, March
2006. [download]
Efficient estimation of the
A-norm of the error in the
preconditioned conjugate
gradient method,
Preconditioning 2005, Atlanta, May
2005 (due to unforeseen absence
the lecture was presented by Petr
Tichy). Presented also at the 5th
GAMM Workshop on Applied and
Numerical Linear Algebra, Dresden,
September 2005. [download]
Core Problems in Linear
Parameter Estimation, 16th
Symposium of IASC on Computational
Statistics COMPSTAT2004, Prague,
August 2004. [download]
Behaviour of the Smallest
Singular Value While Appending a
Column of a Matrix, GAMM
Linear Algebra Workshop, Hagen,
July 2004. [download]
On Numerical Stability in
Error Estimation in the
Conjugate Gradient Method,
ETNA 2003, Kent, Ohio, May 2003.
Errors-in-Variables Modeling
and Numerical stability of GMRES,
Numerical Analysis, Ostrava,
February 2003.
History and Presence of
Error Estimation in the
Conjugate Gradient Method,
Mathematical and Computer Modeling
in Science and Engineering, Praha,
January 2003.
Do we know when to stop
iterative methods for linear
algebraic systems?, PMAA'02,
Neuchatel, November 2002.
Error Estimates and Stopping
Criteria in the Conjugate
Gradient Method,
Algoritmy'02, Podbanske, September
2002.
On Error Estimation in the
Conjugate Gradient Method ,
First SIAM-EMS Conference Applied
Mathematics in our Changing World,
Konrad-Zuse-Zentrum fur
Informationstechnik, Berlin,
September 2001. [download]
Convergence Characteristics
and Stopping Criteria for
Iterative Solvers, 16th
IMACS World Congress, Lausanne,
August 2000.
When Loss of Orthogonality
Means Convergence, Joint
Mathematics Meetings (invited SIAM
minisymposium), Washington D.C.,
January 2000.
Lanczos Method and Gauss
Quadrature, AMS--IMS--SIAM
Conference on Structured Matrices,
Boulder, June 1999.
Delay of Convergence in
Nonsymmetric Krylov Space
Methods, 1999 SIAM Annual
Meeting, Atlanta, May 1999.
Least Squares Problems and
Convergence of GMRES, Linear
Algebra: Theory, Applications and
Computations, Wake Forest
University, Winston-Salem, January
1999.
Rounding Errors in Symmetric
and Nonsymmetric Krylov Space
Methods--Do They Behave
Differently?, Fourth IMACS
International Symposium on
Iterative Methods in Scientific
Computation, University of Texas
at Austin, October 1998.
Krylov Sequences of Maximal
Length and Convergence of GMRES,
7th ILAS Conference, Madison, May
1998.
Accuracy of Three--Term and
Two--Term Recurrences in
Iterative Methods, 7th ILAS
Conference, Madison, May 1998.
Is Forward Error Analysis of
the GMRES Method Possible?,
International Workshop on
Iterative Methods and Parallel
Computing, Milovy, June 1997.
Do We Really Need Well
Preserved Orthogonality in the
GMRES Method?, Sixth ILAS
Conference, Chemnitz, August 1996.
On the Rate of Convergence of
the GMRES Method, IMACS,
Blagoevgrad, June 1995.
The GMRES Method is Backward
Stable, Least Squares Methods:
Theory, Algorithms and
Applications, Linkoping
University, January 1995.
Rounding Errors in Krylov
Subspace Methods for Solving
Linear Algebraic Systems, ISNA -
92, Prague, Aug. 31 - Sept. 4,
1992.
Open Questions in the
Convergence Analysis of the
Lanczos Process for the Real
Symmetric Eigenvalue Problem, IMA
Workshop on Iterative Methods,
IMA, University of Minnesota, Feb.
24 - 29, 1992.
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