Numerical Analysis Group - Computational Science & Engineering Department - GOOGLE

Talks, seminars and courses given by Group members

1998 | 99 | 2000 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09

Compressed Postscript, PDF or powerpoint copies of the following recent talks given by group members are available:

2009

November 2nd: I. S. Duff; "Exploiting sparsity in the solution phase for large sparse equations "; Sparse Day @ Berkeley Lab, LBNL, Berkeley, California.
October 29th: I. S. Duff; "Hybrid techniques in the solution of large scale problems "; SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
October 29th: J. A. Scott; "A DAG-based sparse Cholesky solver for multicore architectures "; CSC Workshop 2009, Seaside, Monterey, California.
October 28th: I. S. Duff; "Development and history of sparse direct methods "; SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
October 26th: J. A. Scott; "The importance of structure in algebraic preconditioners "; SIAM Conference on Applied Linear Algebra 2009, Seaside, Monterey, California.
October 7th: J. K. Reid; "Coarrays in Fortran 2008"; PGAS 2009, George Washington University.
October 2nd: M. Arioli; "An introduction to HSL: Design of reliable software"; CSC / NAG Autumn School
July 16th: J. A. Scott; "Too large to handle directly? "; Sparse Matrices for Scientific Computation, Coseners House, Abingdon.
July 16th: J. K. Reid; "Direct solution of large sparse sets of equations on a multicore computer "; Sparse Matrices for Scientific Computation, Coseners House, Abingdon.
June 25th: J. A. Scott; "Exploiting mixed precision in the solution of sparse symmetric linear systems "; 23rd Biennial Conference on Numerical Analysis, Strathclyde University.
June 24th: H. S. Dollar; "Solving trust-region and other regularised subproblems in optimization "; 23rd Biennial Conference on Numerical Analysis, Strathclyde University.
June 24th: J. K. Reid; "On Aasen's tridiagonalization method "; 23rd Biennial Conference on Numerical Analysis, Strathclyde University.
June 18th: M. Arioli
"Linear regression and stopping criteria for the conjugate gradient method": Sparse Days at CERFACS 2009.

June 18th: J. A. Scott; "A DAG-based sparse Cholesky solver for multicore architectures "; Sparse Days at CERFACS 2009.
April 13th: H. S. Dollar; "Projected Krylov methods and PDE-constrained optimization"; Advances and Perspectives on Numerical Methods for Saddle Point Problems, Banff International Research Station, Canada.
March 31st
M. Arioli
"Numerical stability in advance scientific computing"
INRIA Sophie Antipolis
March 4th: J. K. Reid; "Development and maintenance of HSL codes "; Workshop on Experiences in Software Development within CSED, Daresbury.
February 3rd: J. K. Reid and J. A. Scott; "Reducing the Total Bandwidth of a Sparse Unsymmetric Matrix "; Dagstuhl Seminar on Combinatorial Scientific Computing.
February 3rd: J. A. Scott; "Fast AMD orderings for matrices with some dense rows "; Dagstuhl Seminar on Combinatorial Scientific Computing.

2008

January 16th: H. S. Dollar; "The problem with being dense and how to get around it "; CASA Colloquium, Technical University of Eindhoven, The Netherlands.
March 31st: J. A. Scott; " On the development of out-of-core direct solvers"; GAMM 2008, Bremen, Germany.
April 8th: H. S. Dollar; "The challenges of PDE-constrained optimization"; Copper Mountain Conference on Iterative Methods, Colorado.
April 17th: J. A. Scott; " An introduction to the world of sparse direct solvers and the HSL library"; University of Nottingham.
May 12th: H. S. Dollar; "The challenges of PDE-constrained optimization"; SIAM Conference on Optimization, Boston.
June 5th: M. Arioli; " Matrix square root and interpolation spaces"; Householder Symposium XVII, Berlin.
June 5th: J. A. Scott; " The world of (HSL) sparse direct solvers"; Householder Symposium XVII, Berlin.
June 5th: H. S. Dollar; " Fast AMD orderings for matrices with some dense rows"; Householder Symposium XVII, Berlin.
June 20th: M. Arioli; " Backward stability of FGMRES"; Parallel Matrix Algorithms and Applications 2008, Neuchatel
June 20th: J. D. Hogg; " A Fast Robust Sparse Mixed Precision Solver"; Parallel Matrix Algorithms and Applications 2008, Neuchatel
June 24th: M. Arioli; " Backward stability of FGMRES"; Sparse Days 2008, CERFACS
June 24th: M. Arioli; " Matrix square root and interpolation spaces"; Sparse Days 2008, CERFACS
June 24th: J. D. Hogg; " A Fast Robust Sparse Mixed Precision Solver"; Sparse Days 2008, CERFACS
July 16th: H. S. Dollar; " Symmetric iterative solvers for symmetric saddle-point problems"; Computational Linear Algebra for Partial Differential Equations, Durham
September 18th: H. S. Dollar; " The problem with being dense and how to get around it"; Daresbury Laboratory Seminar
September 23rd: M. Arioli; "Least-squares problems, normal equations, and stopping criteria for the conjugate gradient method"; Bath/RAL Day 2008, Bath
September 23rd: J. D. Hogg; "A Fast Robust Sparse Mixed Precision Solver"; Bath/RAL Day 2008, Bath
November 5th: J. K. Reid; "Parallel programming in Fortran with Coarrays"; RAPS Workshop, ECMWF, Reading.
November 12th: J. D. Hogg; "Mixed Precision Solution of Linear Systems"; ERGO Seminar, University of Edinburgh
Decemeber 4th: J. D. Hogg; "Cholesky factorizations for multicore systems"; CMA Seminar, University of Oxford
Decemeber 11th: H. S. Dollar; "Optimal Solvers for PDE-Constrained Optimization"; OPTPDE 2008, Warsaw

2007

February 17th: I.S. Duff; "Recent developments in multifrontal methods "; Combinatorial Scientific Computing (CSC07), Costa Mesa, California.
March 1st: C. Cartis; "Some challenges in interior point methods for linear programming "; CORMSIS seminar series, University of Southampton, UK.
March 28th: I.S. Duff; "Recent developments in multifrontal methods "; Berkeley Lab Scientific Computing Workshop, LBNL, Berkeley, California.
March 28th: J.A. Scott; "A virtual memory system for use with an out-of-core solver "; Berkeley Lab Scientific Computing Workshop, LBNL, Berkeley, California.
March 30th: I.S. Duff; "Combining direct and iterative methods for the solution of large systems in different application areas "; Stanford50, Stanford University, California.
May 11th: J.A. Scott; "An introduction to HSL and the solution of sparse linear systems "; Department of Mathematics, University of Bath.
June 26th: J.K. Reid; " Partial Solution of Full Symmetric Indefinite Linear Systems "; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 26th: J.A. Scott; "The performance of a new HSL out-of-core solver"; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 27th: C. Cartis; "A new perspective on the complexity of interior point methods for linear programming"; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 27th: N. I. M. Gould; "Adaptive cubic over-estimation methods for unconstrained optimization"; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 28th: H. S. Dollar; "Iterative solution of saddle-point systems with examples from PDE-constrained optimization"; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.

June 28th: M. Arioli; "GMRES preconditioned by a perturbed LDLT decomposition with static pivoting"; 22nd Biennial Conference on Numerical Analysis, Dundee, Scotland.
July 11th: H. S. Dollar; "Iterative solution of saddle-point systems with examples from PDE-constrained optimization"; 2007 International Conference on Preconditioning Techniques, Toulouse, France.
July 16th: I. S. Duff; "Developments in matching and scaling algorithms"; 6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland.
July 16th: C. Cartis; "Adaptive cubic overestimation methods for unconstrained optimization "; 6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland.
July 20th: H. S. Dollar; "Iterative linear algebra for constrained optimization"; 6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland.
July 20th: H. S. Dollar; "Iterative solution of saddle-point systems with examples from PDE-constrained optimization"; 6th International Congress on Industrial and Applied Mathematics, Zurich, Switzerland.
August 23rd: J. A. Scott; "On the direct solution of very large sparse linear systems using out-of-core techniques"; Computational Methods with Applications, Harrachov, Czech Republic.
August 24th: M. Arioli; "GMRES preconditioned by a perturbed LDLT decomposition with static pivoting"; Computational Methods with Applications, Harrachov, Czech Republic.
September 13th: H. S. Dollar; "Iterative solution of saddle-point systems with examples from PDE-constrained optimization"; First IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham.
September 14th: J. K. Reid and J. A. Scott; "Partial Solution of Full Symmetric Indefinite Linear Systems"; First IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham.
September 14th: M. Arioli; "GMRES preconditioned by a perturbed LDLT decomposition with static pivoting"; First IMA Conference on Numerical Linear Algebra and Optimization, Birmingham.
September 14th: J. A. Scott; "Solving large sparse linear systems out of core"; First IMA Conference on Numerical Linear Algebra and Optimisation, Birmingham.
September 25th: J. A. Scott; "Solving large sparse linear systems out of core"; Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
September 25th: H. S. Dollar; "Iterative solution of PDE-constrained optimization problems"; Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
October 26th: H. S. Dollar; "Iterative solution of PDE-constrained optimization problems"; Numerical Analysis and Scientific Computing Seminars, University of Manchester, England.

2006

January 9-13th: N. I. M. Gould; Slides and lecture notes; University of Edinburgh Operations Research MSc course on Numerical Optimization.
January-March: N. I. M. Gould; Slides and lecture notes; Oxford University Part C course on Continuous Optimization.
June 15th: N. I. M. Gould; "Finding a well-centred point for a set of polyhedral constraints"; Sparse Days, CERFACS, Toulouse, France.
June 16th: H. S. Dollar; "Implicit-factorization constraint preconditioners and permutations"; Sparse Days, CERFACS, Toulouse, France.
June 16th: M. Arioli; "A note on GMRES preconditioned by a perturbed LDLT decomposition with static pivoting"; Sparse Days, CERFACS, Toulouse, France.
June 20th: J. A. Scott; "The design of an out-of-core multifrontal solver for the 21st century"; PARA'06, Umea, Sweden.
July 24th: J. A. Scott; "Refinement algorithms for bandwidth reduction"; GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf, Germany.
July 25th: M. Arioli; "Stopping criteria in the context of finite-element discretization"; GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf, Germany.
July 25th: H. S. Dollar; "Constraint style preconditioners for regularized saddle point problems"; GAMM-SIAM Conference on Applied Linear Algebra, Dusseldorf, Germany.
August 1st: C. Cartis; " A new perspective on the complexity of interior point methods for linear programming"; International Symposium on Mathematical Programming, Rio de Janeiro, Brazil
September 5th: M. Arioli; "Stopping criteria for Krylov methods and finite-element approximation of variational problems"; ECCOMAS CFD 2006 September 5-8, 2006 Egmond aan Zee, The Netherlands.
September 26th: C. Cartis; "Finding a well-centred point within a polyhedron"; International Conference on Numerical Analysis and Optimization, Beijing, China
September 27th: N. I. M. Gould; "SRLP-EQP filter methods for constrained optimization"; International Conference on Numerical Analysis and Optimization, Beijing, China
November 2nd: J. A. Scott; "HSL and its out-of-core solver"; Institute of Computer Science, Academy of Sciences of the Czech Republic.
November 15th: H. S. Dollar; "Iterative linear algebra for constrained optimization"; ERGO Seminar, University of Edinburgh, Scotland.
November 9th: M. Arioli; "The role of finite dimensional Hilbert spaces and their duals in the design of Krylov subspaces methods"; Applied Mathematics Dep., University of Leicester.
December 5th: H. S. Dollar; "Solving saddle-point problems at a gallop"; Second Internal Numerical Analysis Conference, University of Oxford.

2005


January 17-20th: N. I. M. Gould; Slides and lecture notes; University of Edinburgh Operations Research MSc course on Numerical Optimization.
January 21st: J.A. Scott; "HSL and the solution of sparse linear systems"; EPCC, The University of Edinburgh, Scotland.
January 21st: J.A. Scott; "Which sparse direct solver?"; The University of Edinburgh, Scotland.
January-February: N. I. M. Gould; Slides and lecture notes; Oxford University MSc course on Numerical Optimization.
February 3rd: J.A. Scott; "HSL and parallel sparse direct solvers"; University of Basel, Switzerland.
February 17th: N. I. M. Gould; "To SQP or not to SQP - modern alternatives in large-scale nonlinear optimization"; Oxford University Computing Laboratory, England.
May 17th: N. I. M. Gould; "Useful linear algebra for large-scale nonlinear optimization"; SIAM Conference on Optimization, Stockholm, Sweden
May 23rd: M. Arioli; "Block partitioned matrices, inf-sup conditions, and stopping criteria"; Householder Symposium XVI, Seven Springs Mountain Resort, Pennsylvania, USA.
May 24th: J. A. Scott; "On solving large sparse linear systems out-of-core"; Householder Symposium XVI, Seven Springs Mountain Resort, Pennsylvania, USA.
June 21st: J. A. Scott; "Reducing the total bandwidth of a sparse unsymmetric matrix"; Second International Workshop on Combinatorial Scientific Computing, CERFACS, Toulouse, France.
June 27th: J. A. Scott; "On solving large sparse linear systems out-of-core"; 21st Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 29th: N. I. M. Gould; "Finding a well-centred point for a set of convex polyhedral constraints"; 21st Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 29th: M. Arioli; "Stopping criteria for Krylov methods applied to the solution of mixed finite-element problems"; 21st Biennial Conference on Numerical Analysis, Dundee, Scotland.
August 16th: N. I. M. Gould; "Finding a well-centred point within a polyhedron"; Optbridge 2005, Cambridge University, England.
September 27th: N. I. M. Gould; "SRLP-EQP filter methods for constrained optimization"; 4th Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
September 27th: J. K. Reid; "Reducing the Total Bandwidth of a Sparse Unsymmetric Matrix"; 4th Bath-RAL Numerical Analysis Day, Rutherford Appleton Laboratory, England.
October 3rd: N. I. M. Gould; "Optimization - a brief overview"; Mathematical Interdisciplinary Research Day on Optimization, University of Warwick, England.
October 12th: N. I. M. Gould; "The (ir)resistible rise of sequential quadratic programming methods for nonlinear optimization"; University of Manchester, England.
November 3rd: J. K. Reid; "Solving large sparse symmetric linear systems out of core"; Oxford University Computing Laboratory, England.
November 18th: N. I. M. Gould; "Requirements for automatic differentiation in numerical optimization" (PostScript, PDF); 2nd European Workshop on Automatic Differentiation, Cranfield University at Shrivenham, England.

2004

February 6th-27th: M. Arioli; "The role of backward stability and dual spaces in the design of iterative methods"; Lectures of the Course on Iterative Methods, ENSEEIHT, Toulouse, France.
February 25th: J.A. Scott; "Bordered block diagonal forms for parallel sparse direct solvers"; SIAM Conference on Parallal Processing for Scientific Computing.
February 25th: N. I. M. Gould; "An interior-point l₁-penalty method for nonlinear optimization"; Judge Institute of Management, University of Cambridge, England
March 26th: N. I. M. Gould; "A filter-trust-region method for unconstrained optimization"; GAMM 75th annual meeting, Dresden, Germany
March 29th: N. I. M. Gould; "An interior-point l₁-penalty method for nonlinear optimization"; European Conference on Computational Optimization, Dresden, Germany
April 14th: N. I. M. Gould; "An interior-point l₁-penalty method for nonlinear optimization"; University of Edinburgh, Scotland.
April 15th-21st: N. I. M. Gould; Slides and lecture notes; University of Edinburgh Operations Research MSc course on Numerical Optimization.
May 3rd-14th: M. Arioli; "Problemi di stabilita' numerica nel calcolo scientifico avanzato"; University of Udine, course on Stability in Advanced Scientific Computing.
May 13th: N. I. M. Gould; "An interior-point l₁-penalty method for nonlinear optimization"; Workshop on Large Scale Nonlinear and Semidefinite Programming, University of Waterloo, Ontario, Canada.
May 26th: M. Arioli; "Chebyshev-based two-stage iterative method as an alternative to the direct solution of linear systems"; Iterative methods, preconditioning and numerical PDE's (IMET 2004), Prague, Czech Republic.
June 3rd: J.A. Scott; "A numerical evaluation of sparse solvers for the direct solution of large sparse symmetric linear systems"; CERFACS Sparse Days Meeting, June 2004
June 28th: N. I. M. Gould; "Constraint preconditioners for large-scale nonlinear optimization"; Workshop on "Large-scale Nonlinear Optimization", Erice, Sicily, Italy.
August 13th: N. I. M. Gould; "Nonlinear scaling for bound-constrained optimization"; Optbridge 2004, Oxford University, England.
September 7th: N. I. M. Gould; "Constraint preconditioners for large-scale nonlinear optimization"; Mathematics and Computational Science Division, Argonne National Laboratory, Illinois, USA.
October 1st: J. A. Scott; "Which sparse direct symmetric solver?"; Bath-RAL Numerical Analysis Day, University of Bath, England.
October 1st: M. Arioli; "A Chebyshev-based two-stage iterative method as an alternative to the direct solution of linear systems"; Bath-RAL Numerical Analysis Day, University of Bath, England.
October 13th: M. Arioli; "Problemi di accuratezza relativi alla soluzione di sistemi sottodeterminati"; Invited talk in honour of A. Laratta, University of Modena.
December 7th: J.A. Scott; "Which sparse direct solver? "; Department of Mathematics, The University of British Columbia, Vancouver, Canada.

2003

January 11th: N. I. M. Gould; "SQP, SLP and Interior-Point methods for large-scale nonlinear programming"; IMA Workshop on Optimization in Simulation-Based Models, Minneapolis, Minnesota, USA.
January-February: N. I. M. Gould; Slides and lecture notes; Oxford University MSc course on Numerical Optimization.
April: N. I. M. Gould; Slides and lecture notes; University of Edinburgh Operations Research MSc course on Numerical Optimization.
June: J. A. Scott; "A numerical evaluation of HSL packages for the direct solution of large sparse symmetric linear systems"; Poster for Sparse Days at St Girons, France and talk at 20th Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 25th: N. I. M. Gould; "An interior-point l₁-penalty method for nonlinear optimization"; 20th Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 25th: M. Arioli; "Backward error analysis and stopping criteria for Krylov space method"; 20th Biennial Conference on Numerical Analysis, Dundee, Scotland.
September 24th: M. Arioli; "Backward error analysis and stopping criteria for Krylov space method"; Numerical Linear Algebra and its Applications Workshop, Monopoli, Bari, Italy.

2002

January 15th: I. S. Duff; "Numerical Linear Algebra, Sparse Matrices, and Parallel Algorithms: Introduction"; Summer School, ANU Canberra.
January 15th: I. S. Duff; "Numerical Linear Algebra, Sparse Matrices, and Parallel Algorithms: Frontal methods"; Summer School, ANU Canberra.
January 16th: I. S. Duff; "Numerical Linear Algebra, Sparse Matrices, and Parallel Algorithms: Multifrontal Methods"; Summer School, ANU Canberra.
January 16th: I. S. Duff; "Numerical Linear Algebra, Sparse Matrices, and Parallel Algorithms: Multifrontal Methods ... distributed memory implementation"; Summer School, ANU Canberra.
January 24th: N. I. M. Gould; "The state-of-the-art in numerical methods for quadratic programming"; GAMS Seminar, Leipzig, Germany.
May 3rd: N. I. M. Gould; "Numerical methods for quadratic programming"; University of Essex, England.
May 20th: N. I. M. Gould; "The GALAHAD software library for large-scale nonlinear optimization"; SIAM Conference on Optimization, Toronto, Canada
June 20th: J. A. Scott; "A parallel direct solver for large sparse unsymmetric linear systems"; Householder Symposium XV, Peebles, Scotland.
July 15-19th: N. I. M. Gould; "5 lectures on nonlinear optimization"; 10th EPSRC Numerical Analysis Summer School, Durham, England.
August 6th: J. A. Scott; "HSL parallel direct solvers for large sparse linear systems"; Computational Linear Algebra with Applications, Milovy, Czech Republic.
August 6th: M. Arioli; "A Null-Space Method Approach in Solving Darcy's Equations"; Computational Linear Algebra with Applications, Milovy, Czech Republic.
October 14th: N. I. M. Gould; "How large is "large" for nonlinear programming?"; University of Edinburgh, Scotland.
October 30th: J. A. Scott; "HSL and a new parallel sparse direct solver"; AspenWorld 2002, Washington D.C.
November 4th: N. I. M. Gould; "Sequential linear programming for huge optimization problems"; Bath-RAL Numerical Analysis Day, University of Bath, England.
November 4th: J. A. Scott; "HSL parallel direct solvers for large sparse linear systems"; Bath-RAL Numerical Analysis Day, University of Bath, England.
November 8th: I. S. Duff; "Direct methods for sparse matrices"; Tutorial in Neuchatel, Switzerland.
November 20th: J. A. Scott; "HSL and the solution of sparse systems"; Seminar at the University of Kingston, London.

2001

January 22nd: N. I. M. Gould; "The state-of-the-art in numerical methods for quadratic programming"; 1st International Conference on Industrial and Applied Mathematics in Indian Subcontinent, Amritsar, India.
May-June: N. I. M. Gould; Slides and lecture notes; Oxford University MSc course on Numerical Optimization.
June 13th: J. A. Scott; "A multilevel algorithm for wavefront reduction"; Sparse Days at CERFACS, Toulouse, France.
June 28th: N. I. M. Gould; "The state-of-the-art in numerical methods for quadratic programming"; 19th Biennial Conference on Numerical Analysis, Dundee, Scotland.
June 28th: J. A. Scott; "A multilevel algorithm for wavefront reduction"; 19th Biennial Conference on Numerical Analysis, Dundee, Scotland.
October 16th: I. S. Duff; "Techniques, algorithms, and software for the direct solution of large sparse linear systems"; Powerpoint file; Graduate Lecture Notes, Oxford University.
October 19th: J. A. Scott; "Frontal methods"; Graduate Lecture Notes, Oxford University.
October 23rd: I. S. Duff; "Techniques, algorithms, and software for the direct solution of large sparse linear systems .. Multifrontal methods"; Graduate Lecture Notes, Oxford University.
October 26th: I. S. Duff; "Techniques, algorithms, and software for the direct solution of large sparse linear systems .. MUMPS and comments on parallel software"; Graduate Lecture Notes, Oxford University.
October 26th: J. A. Scott; "Parallel direct methods"; Graduate Lecture Notes, Oxford University.
December 11th: N. I. M. Gould; "GALAHAD - a library of packages for large-scale nonlinear optimization"; ICFD Workshop on Optimisation, Oxford University.

2000

February 3rd: N. I. M. Gould; "Quadratic programming: theory and methods"; 3rd FNRS Cycle in Mathematical Programming, Han-sur-Lesse, Belgium.
June 25th: N. I. M. Gould; "Componentwise fast convergence of parameterized Newton methods"; University of Edinburgh, Scotland.
August 10th: N. I. M. Gould; "The development of GALAHAD, a new algorithm for large-scale nonlinear programming II: Quadratic Programming subproblems"; 17th International Symposium on Mathematical Programming, Atlanta, Georgia, USA.
October 24th: N. I. M. Gould; "Optimization on the cusp of the 21st century: what can we learn from quadratic programming?"; Daresbury Laboratory, England.

1999

June 15th: K. A. Y. Meerbergen; "The solution of quadratic eigenvalue problems"; Householder Symposium XIV, Whistler, British Columbia, Canada.
June 15th: Jennifer Scott; " Row ordering for frontal solvers"; Householder Symposium XIV, Whistler, British Columbia, Canada.
July 1st: N. I. M. Gould; "An iterative active-set method for large-scale non-convex quadratic programming"; 18th Biennial Conference on Numerical Analysis, Dundee, Scotland.
July 16th: N. I. M. Gould; "SQP methods for large-scale nonlinear programming"; 19th IFIP TC7 Conference on System Modelling and Optimization, Cambridge, England.
October 18th: K. A. Y. Meerbergen; "The rational Lanczos method for the Hermitian eigenvalue problem"; Warwick, England.
October 28th: N. I. M. Gould; "Numerical methods for large-scale non-convex quadratic programming"; 1st Workshop on Nonlinear Optimization: ``Interior-Point and Filter Methods'', Coimbra, Portugal.

1998

July 1st: N. I. M. Gould; "Conjugate gradient methods for linearly-constrained and structurally ill-conditioned unconstrained optimization problems"; Workshop on "Nonlinear Optimization and Applications", Erice, Sicily, Italy.
July 6th: K. A. Y. Meerbergen; "Reliable eigenvalue solvers for generalized eigenvalue problems: implicit restart and domain of confidence"; Eighth EPSRC Summer School, Leicester, England.