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CRM > English > Activities > Curs 2018-2019 > HAMSYS2018
General Information 

September 3 to 7, 2018

The conference  HAMSYS2018, continuation of the conference HAMSYS2014 celebrated inside the research program on Central Configurations, Periodic Orbits and Beyond in Celestial Mechanics.
In 1991 started the series of the HAMSYS Symposia. These symposia brought together top researches from several countries, working mainly in Hamiltonian Systems and Celestial Mechanics, as well as many graduate students who had the opportunity to learn from and connect with the experts in the field.
The VIII-th HAMSYS Symposium, denoted HAMSYS-2018, will take place at CRM (Centre de Recerca Matemàtica, at Universitat Autònoma de Barcelona). The emphasis of the talks will be on Hamiltonian dynamics and its relationship to several aspects of mechanics, geometric mechanics, and dynamical systems in general.
Previous Editions:
-Guanajuato, Mexico, September 30 - October 4, 1991
-Cocoyoc, Mexico, September 13-17, 1994
-Pátzcuaro, Mexico, December 7-11, 1998
-Guanajuato, Mexico, March 19-24, 2001
-Guanajuato, Mexico, July 7-11, 2008
-Ciudad de México, Mexico, November 29 - December 3, 2010
-Centre de Recerca Matemàtica, Bellaterra, June 2-6, 2014
The HAMSYS2018  will be mainly dedicated to the following topics:
The study of the dynamics of n point masses interacting according to Newtonian gravity is usually called the n-body problem. It can be considered as old as the history of the science and has influenced most of the areas in mathematics. However, most of the problems in Celestial Mechanics are beyond the present limits of the knowledge and many natural questions are difficult or impossible to solve when the number of bodies n is larger than 2.
In order to make progress against such complexity one must look for specific objects. From a geometrical point of view a key point consists in trying to understand the structure of the phase space looking for the equilibrium points, periodic orbits, invariant tori, ... The stable and unstable manifolds associated to these objects form a kind of network of connections, which together with the previous invariants objects constitute a big part of the main skeleton of the system.
One of the main ingredients of the phase space are the periodic orbits. Over the years, many authors have contributed to study the periodic orbits of a wide variety of n-body problems from different points of view. A particular interesting type of periodic orbit in the planar n-body problem is one in which the particles remain in the same shape relative to one another. The possible configurations for the particles in such orbits are called central configurations.
Organizing Committee
Montserrat Corbera
Universitat de Vic
Josep Maria Cors Universitat Politècnica de Catalunya
Jaume Llibre
​Universitat Autònoma de Barcelona
The list of keynote s​peakers includes
​Martha Alvarez Ramírez ​Universidad Autonoma de Mexico-Iztapalapa
Antonio Garcia Universidad Autonoma de Mexico-Iztapalapa
Daniel Offin Queen's University
Gareth Roberts College of the Holy Cross
Cristina Stoica Wilfrid Laurier University
Claudio Vidal Universidad del Bío Bío
​Xiang Zhang ​Shanghai Jiao Tong University
Early Bird Fee
Regular 200€​
​Phd students* 100€

Late Registration fee
Regular 250€​
PhD Students* 150€ 
*Participants intereseted in taking advantage of the PhD student fees are required to send a letter from their thesis advisor to (please mention the name of the activity "Hamsys 2018" in the email).
Deadline for early bird registration: May 30th, 2018
Deadline for registration: July 1st, 2018
Refund policy:
The registration fee depends on the date of the payment.
Cancellations received 1 month before the start of the activity will incur in an administrative fee of 50% of the total amount.
Cancellations received less than one month prior to the start of the activity are not refundable.
The EMS offers some travel grants to young mathematicians from less-favoured regions within the geographical area of EMS membership for presenting results at conferences or attending courses, or for research stays in foreign countries, normally up to a maximum of 900 euros in each case or 500 euros for trips within Europe.
Eligible researchers should use this online form​ in order to apply for travel grants.
Lodging information
For lodging in the area please click here​
For off-campus and family accommodation click here​​​​
 Further information
If you have any question please contact the activity's coordinator Ms. Núria Hernandez at​.