Positivity Group · Workshop 2027
The Little

Positivity

3 – 6 January 2027
TUI BLUE El Manar · Hammamet · Tunisia
Register Programme
Registration deadline · 31 December 2026
About the workshop

A small meeting on ordered structures

Following its series of weekly research talks at the Faculty of Sciences of Tunis, the Positivity Group is organizing a three-day workshop in Hammamet. The programme combines two doctoral courses, research talks and short talks by young researchers on Riesz spaces, Banach lattices, lattice-ordered algebras, positive operators, functional analysis and related topics.

Dates
Sunday 3 – Wednesday 6 January 2027
Venue
TUI BLUE El Manar, Hammamet
Registration
Until 31 December 2026
Fees
To be announced · cash or purchase order
Contact
contact@positivity.tn
Doctoral course I

Birkhoff–Pierce Function Algebras

Prof. Karim Boulabiar

Morning lectures on f-algebras, the lattice-ordered algebras introduced by G. Birkhoff and R. S. Pierce in 1956, and their representation as algebras of functions.

f-algebraa ∧ b = 0, c ≥ 0  ⟹  ac ∧ b = ca ∧ b = 0
Doctoral course II

Operators in Riesz Spaces

Prof. Elmiloud Chil

Morning lectures on positive, regular and order bounded operators between Riesz spaces.

Riesz–Kantorovich|T|(x) = sup { |Ty| : |y| ≤ x },  x ≥ 0
Provisional programme

Programme

TimeSession
Sunday 3 JanuaryArrival
From 14:00Arrival and check-in at the hotel
19:30SocialWelcome dinner
Monday 4 JanuaryDay 1
MorningDoctoral course IBirkhoff–Pierce Function Algebras, lecture 1 · K. Boulabiar
MorningDoctoral course IIOperators in Riesz Spaces, lecture 1 · E. Chil
AfternoonTalksResearch talks
Tuesday 5 JanuaryDay 2
MorningDoctoral course IBirkhoff–Pierce Function Algebras, lecture 2 · K. Boulabiar
MorningDoctoral course IIOperators in Riesz Spaces, lecture 2 · E. Chil
AfternoonTalksShort talks by PhD students
Wednesday 6 JanuaryDay 3
MorningDoctoral course IBirkhoff–Pierce Function Algebras, lecture 3 · K. Boulabiar
MorningDoctoral course IIOperators in Riesz Spaces, lecture 3 · E. Chil
MiddaySocialClosing and departure

Exact times and the list of talks will be posted here. PhD students who wish to give a short talk can say so in the registration form.

Participants

List of participants

The list of registered participants will be published here.

#NameInstitutionCountry
Organizing committee
  • Elmiloud Chil
  • Hamza Hafsi
  • Mohamed Habibi
  • Mounir Mahfoudhi
  • Rawaa Hajji
Registration

Register for the workshop

  1. Fill in the form below, including your room choice at the hotel.
  2. The organizing committee confirms your registration and your room by e-mail.
  3. Room rates depend on the room type and are sent with the confirmation.
Registration deadline31 December 2026
Registration feesTo be announced
PaymentCash or purchase order

Questions: contact@positivity.tn

Participant
Status *
Talk
I would like to give a talk *
PhD students are welcome to give a short talk.
Accommodation at TUI BLUE El Manar
Room *
Rates depend on the room type and are sent with the confirmation.
Nights
Poster

The workshop poster

Download it and share it with your colleagues and students.

Positivity Group · Workshop
The Little

Positivity

3 – 6 January 2027
TUI BLUE El Manar · Hammamet
Two doctoral courses · every morning

Birkhoff–Pierce Function Algebras

Prof. Karim Boulabiar

Operators in Riesz Spaces

Prof. Elmiloud Chil
Organizing committee
Elmiloud ChilHamza HafsiMohamed HabibiMounir MahfoudhiRawaa Hajji
positivity.tn
Scan to register · room choice online
contact@positivity.tn
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