Tarquinia (Italy) 15-20  May 2022

1. Antonio Degasperis (Roma-Sapienza University, I)
2. Giuseppe Gaeta (Università di Milano, I)
3. Antonella Marchesiello (Czech Technical University, CZ)
   
4. Franco Oliveri (Università di Messina, I)
5. Peter J. Olver (University of Minnesota, USA)
6. Chara Pantazi (Universitat Politècnica de Catalunya, E)
7. Ferdinand Verhulst (RijksUniversiteit Utrecht, NL)
8. Sebastian Walcher (RWTH Aachen, D)

The conference will also be an occasion to mark the retirement of Sebastian Walcher

PLEASE NOTE:

(1) All speakers listed above are confirmed.

(2) The conference will take place in presence only, and only if this format is possible; should the pandemic situation make this not possible at the expected dates, the conference will be postponed.

(3) The social distancing rules can cause a maximal number of people is allowed into the conference room; this number can vary depending on the epidemic situation. Those interested in participation (other than invited speakers) should contact the organizer about this.

(4) The running of the conference will strictly follow all the covid-related regulations and limitations. At present (April 20), these would include the requirement of a valid vaccination certificate to access the conference room.

The conference will take place at the Hotel "Camere del Re" in Tarquinia. Invited speakers will be lodged there.
Participants are of course free to lodge anywhere. See the site "Tarquiniaturismo" for further info.

Note that hotel booking should be made individually by invited speakers, not later than March 31.

Program: Sunday 15 May: arrival day Monday 16 - Thursday 19: full conference days; Friday 20 may: conference will end at lunch time. Detailed program will be announced in due time. General scheme: Morning: invited talks, about 50' + 10' each. Afternoon: contributed talks and                   discussion on the morning's talks.

Tentative program:

	10:00-11:00	11:00-11:30	11:30-12:30	Afternoon
Monday 16	P.J.Olver	Coffee break	A.Degasperis	Discussion
Tuesday 17	F.Verhulst	Coffee break	A.Marchesiello	Discussion
Thursday 19	F.Oliveri	Coffee break	G. Gaeta	Discussion
Friday 20	C.Pantazi	Coffee break	S.Walcher	Discussion

Tentative titles:

• A. Degasperis: Long wave – short wave interaction in one dimensional space
• G. Gaeta: Normal forms and twisted symmetries
• A. Marchesiello: Bifurcations of symmetric resonances [B]
• F. Oliveri: Optimal systems of Lie subalgebras: a computer algebra approach [B]
• P.J. Olver: Fractalization and quantization in linear and nonlinear dispersive partial differential equations and Fermi-Pasta-Ulam-Tsingou lattices [B]
• C. Pantazi: Integrability and qualitative properties of some polynomial vector fields using finite differential Galois groups
• F. Verhulst: KAM-like tori and canards in some dissipative systems [B]
• S. Walcher: Higher dimensional analogues of Riccati and Bernoulli differential equations

[B] = will use beamer

To reach Tarquinia from abroad, we suggest to fly to Roma-Fiumicino airport. You will then be able to reach Traquinia by frequent regional train service changing in Roma-Trastevere (note: you do NOT have to use the express "Leonardo" train to Roma Termini, as this does not stop in Trastevere), see schedule on the trenitalia.com website. Tarquinia train station is NOT  at walking distance from the city center; you will need a bus or taxi. Bus schedule will be posted here in spring; moreover the organizers and the Hotel will be happy to arrange transportation for you if required.

• Alberese (Uccellina natural park)
• Bolsena
  
• Bomarzo
  
• Bracciano
• Capalbio
• Grosseto
  
• Monte Argentario
  
• Montefiascone
• Orbetello
• Orte
  
• Pitigliano
• Sutri
• Tuscania
• Viterbo
• Vitorchiano