[DMANET] Spring School on "MINLPs and Bilevel Problems" and JPOC12

Dear colleagues,

Every two years the French research group "POC" Polyhedra and
Combinatorial Optimization" organizes a workshop in France: the "POC
days", called *JPOC*.

We invite you to register for these *online events (the registration is
free of charge)*:

***** *22-23 june 2021: Spring School on "MINLPs and Bilevel Problems"*
*by Martin Schmidt and Yasmine Beck *(Trier University - Department of
Mathematics, Germany)

This two-day spring school consists of the two parts
- Introduction to MINLP,
- Introduction to Bilevel MI(N)LP.

Both parts will take a one day each.

In the first part, we discuss the class of mixed-integer nonlinear
optimization problems (MINLPs). You will learn what an MINLP is, how to
distinguish between convex and nonconvex MINLPs, and how to apply
standard MINLP modeling techniques. Moreover, you will learn about and
understand the classic algorithms for MINLP such as nonlinear
branch-and-bound or outer approximation for convex MINLPs as well as the
basics of relaxation strategies and spatial branch-and-bound for
nonconvex MINLPs.

The second part introduces the class of bilevel optimization problems.
We will discuss some exemplary applications and study academic examples
that highlight the many difficulties of bilevel optimization. These
examples are also used to introduce different solution concepts of
bilevel optimization such as optimistic and pessimistic solutions.
Afterward, we discuss different single-level reformulation techniques
for bilevel problems with convex lower-level problems, before we discuss
classic branch-and-bound as well as branch-and-cut techniques for
bilevel problems including integer variables. In the end, we will give
an outlook over the field of mixed-integer nonlinear bilevel problems.

To register: https://www.lamsade.dauphine.fr/poc/?q=node/76/register

More details: https://www.lamsade.dauphine.fr/poc/?q=node/76

***** *24-25 june 2021: "POC days" - Polyhedra and Combinatorial
Optimization *

The invited speakers are

*Amitabh Basu * (Johns Hopkins University, USA)

*Ricardo Fukasawa * (University of Waterloo, Canada)

*Maya Jakobine-Stein* (Universidad de Chile, Chili)

*Laura Sanita * (University of Waterloo, Canada)

To register: https://www.lamsade.dauphine.fr/poc/?q=node/77/register

More details: https://www.lamsade.dauphine.fr/poc/?q=node/81


Ivana Ljubic

(on behalf of the organizing committee)

--
Ivana Ljubic
Professor of Operations Research
ESSEC Business School of Paris
homepage:http://www.essec.edu/faculty/ivana-ljubic
papers & preprints:http://homepage.univie.ac.at/ivana.ljubic/publications.html


**********************************************************
*
* Contributions to be spread via DMANET are submitted to
*
* DMANET@zpr.uni-koeln.de
*
* Replies to a message carried on DMANET should NOT be
* addressed to DMANET but to the original sender. The
* original sender, however, is invited to prepare an
* update of the replies received and to communicate it
* via DMANET.
*
* DISCRETE MATHEMATICS AND ALGORITHMS NETWORK (DMANET)
* http://www.zaik.uni-koeln.de/AFS/publications/dmanet/
*
**********************************************************