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I am a computational mathematician and part of the Laboratory for Advanced Numerical Simulations ([http://www.mcs.anl.gov/research/group_detail.php?id=4 LANS]) in the [http://www-fp.mcs.anl.gov/division/welcome/default.asp Mathematics and Computer Science Division] at [http://www.anl.gov/ Argonne National Laboratory], and a Fellow of the [http://www.ci.uchicago.edu/ Computation Institute]. | |||

− | ''I am interested in the development of reliable methods for solving large-scale nonlinear optimization problems and in the implementation and analysis of filter type algorithms. This forms the basis from which I am extending nonlinear optimization methodologies to emerging areas such as mixed-integer nonlinear optimization and optimization problems with complementarity constraints. | + | ''I am interested in the development of reliable methods for solving large-scale nonlinear optimization problems and in the implementation and analysis of filter type algorithms. This forms the basis from which I am extending nonlinear optimization methodologies to emerging areas such as mixed-integer nonlinear optimization and optimization problems with complementarity constraints.'' |

− | '' | ||

− | |||

* [[Sven Leyffer's Research|Current Research Interests & Testproblem Libraries]] | * [[Sven Leyffer's Research|Current Research Interests & Testproblem Libraries]] | ||

* [[Sven Leyffer's Publications|Publications & Preprints]] | * [[Sven Leyffer's Publications|Publications & Preprints]] | ||

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* [http://wiki.mcs.anl.gov/NEOS/index.php/SIAG/Optimization_View_and_News SIAG/OPT Views-and-News] the newsletter for the [http://www.siam.org/activity/optimization/ SIAM Activity Group on Optimization]. | |||

− | '''LANS Seminars:''' | + | |

+ | '''LANS Seminars:'''<br> | ||

[http://www.mcs.anl.gov/research/LANS/events/listn/ LISTn: LANS Informal Talks Network], see also [http://www.google.com/calendar/embed?src=e8r9gll7mc180cf279n49ancio%40group.calendar.google.com&ctz=America/Chicago the LISTn google calendar] | [http://www.mcs.anl.gov/research/LANS/events/listn/ LISTn: LANS Informal Talks Network], see also [http://www.google.com/calendar/embed?src=e8r9gll7mc180cf279n49ancio%40group.calendar.google.com&ctz=America/Chicago the LISTn google calendar] | ||

− | ''Contact:''<br> | + | '''Contact:'''<br> |

Sven Leyffer (see [http://www.google.com/calendar/embed?src=sven.leyffer@gmail.com&ctz=America/Chicago my google calendar] for busy times)<br> | Sven Leyffer (see [http://www.google.com/calendar/embed?src=sven.leyffer@gmail.com&ctz=America/Chicago my google calendar] for busy times)<br> | ||

Mathematics and Computer Science Division<br> | Mathematics and Computer Science Division<br> |

## Revision as of 16:34, 4 March 2009

I am a computational mathematician and part of the Laboratory for Advanced Numerical Simulations (LANS) in the Mathematics and Computer Science Division at Argonne National Laboratory, and a Fellow of the Computation Institute.

*I am interested in the development of reliable methods for solving large-scale nonlinear optimization problems and in the implementation and analysis of filter type algorithms. This forms the basis from which I am extending nonlinear optimization methodologies to emerging areas such as mixed-integer nonlinear optimization and optimization problems with complementarity constraints.*

- Current Research Interests & Testproblem Libraries
- Publications & Preprints
- Software (under construction)
- NEOS wiki the ubiquitous online source for optimization
- SIAG/OPT Views-and-News the newsletter for the SIAM Activity Group on Optimization.

**LANS Seminars:**

LISTn: LANS Informal Talks Network, see also the LISTn google calendar

**Contact:**

Sven Leyffer (see my google calendar for busy times)

Mathematics and Computer Science Division

Argonne National Laboratory

Argonne, Il 60439, USA

E-mail: leyffer at mcs.anl.gov

Phone: (630) 252-4698; Fax: (630) 252-5986

Some old personal stuff about Gwen & Sven Leyffer.