Program

For the detailed program, please click on the fields "Schedule" and "Abstracts" on the top menu.



Sunday, 30 June 2024

18:00 Registration (Department of Mathematics, Building 11)

20:00 Welcome Dinner (University Restaurant - Building F)


Monday, 1 July 2024


08:00 - 10:00 Late registration  (Department of Mathematics, Building 11)


08:45    Opening Ceremony -  Don't miss it!

               (Sala de Atos Académicos - Building 25)

    09:00     Anne Schilling: From quasi-symmetric to Schur expansions: crystal skeletons and the quasi-Kostka matrix

               (Sala de Atos Académicos - Building 25)

09:45 Dimitri Leemans: Highly symmetric polytopes: recent results and future challenges

                (Sala de Atos Académicos - Building 25)


    10:30 Coffee-Break


11:00 Short Communications - full details here 

                (Sala de Atos Académicos - Building 25)


12:30     Lunch (Crasto Canteen Complex, Building M)


14:15 Thematic Session: Algebraic aspects of symbolic dynamics I (Room 23.1.5. - Building 23)

(organizers: Jorge Almeida, Alfredo Costa and Herman Goulet-Ouellet)

14:15 Thematic Session: Solving Equations in Algebraic Structures (Room 23.1.7. - Building 23)

(organizers: Volker Diekert and Alexei Miasnikov)


16:15 Coffee-Break (Building 23)


16:45 Augmented Intelligence Theorem Proving I (Room 11.1.32 - Building 11)

(organizers: João Araújo and Michael Kinyon)

Exercises for the session can be found here



Tuesday, 2 July 2024


09:00 Olga Kharlampovich: Subgroup Separability in RAAGs via representations

               (Sala de Atos Académicos - Building 25)

09:45 James East: Projection algebras and free regular *-semigroups

               (Sala de Atos Académicos - Building 25)


    10:30 Coffee-Break


11:00 Short Communications - full details here 

               (Sala de Atos Académicos - Building 25)


12:45   Lunch (Crasto Canteen Complex, Building M)


14:15 Thematic Session: Algebraic aspects of symbolic dynamics II (Room 23.1.5. - Building 23)

(organizers: Jorge Almeida, Alfredo Costa and Herman Goulet-Ouellet)

14:15 Thematic Session: Symmetries in discrete objects (Room 23.1.6. - Building 23)

(organizer: Maria Elisa Fernandes)

14:15 Thematic Session: Identities and quasi-identities: finite axiomatization and complexity issues  (Room 23.1.7. - Building 23)

(organizer: Mikhail Volkov)


16:15 Coffee-Break (Building 23)


16:45 Augmented Intelligence Theorem Proving II (Room 11.1.32 - Building 11)

(organizers: João Araújo and Michael Kinyon)

Exercises for the session can be found here



Wednesday, 3 July 2024


09:00 Martin Liebeck: On a problem of Araújo and Cameron

               (Sala de Atos Académicos - Building 25)

09:45 Victoria Gould: Coherency for monoids and purity for their acts

               (Sala de Atos Académicos - Building 25)


   10:30 Coffee-Break


11:00 Short Communications - full details here 

               (Sala de Atos Académicos - Building 25)


12:45   Lunch (Crasto Canteen Complex, Building M)


14:15 Thematic Session: Algebraic aspects of symbolic dynamics III (Room 23.1.5. - Building 23)

(organizers: Jorge Almeida, Alfredo Costa and Herman Goulet-Ouellet)

14:15 Thematic Session: Language theory in (semi)group theory (Room 23.1.6. - Building 23)

(organizer: Carl-Fredrik Nyberg Brodda)

14:15 Thematic Session: Numerical Semigroups: From Algebraic Geometry to Error Correction and Beyond (Room 23.1.7. - Building 23)

   (organizer: Mahir Can)


16:15 Coffee-Break (Building 23)


16:45 Stuart Margolis: Complexity 1 is Decidable For Finite Semigroups

               (Room 23.1.6. - Building 23)

17:30 Pascal Weil: Average-case complexity of certain algorithms on subgroups of free groups

               (Room 23.1.6. - Building 23)


19:00     Boat trip (Cais 8, Rua João Mendonça, n. 25)

20:00 Banquet


Thursday, 4 July 2024


09:00 Laurent Bartholdi: Automatic Actions

                (Sala de Atos Académicos - Building 25)

09:45 Persi Diaconis: What makes “Wild” wild?

                (Sala de Atos Académicos - Building 25)


    10:30 Coffee-Break


11:00 Short Communications - full details here 

                (Sala de Atos Académicos - Building 25)


12:45   Lunch (Crasto Canteen Complex, Building M)


14:15 Thematic Session: Combinatorial and geometric inverse monoid theory (Room 23.1.6. - Building 23)

   (organizer: Robert Gray)

14:15 Thematic Session: Stallings graphs and the lattice of subgroups of a free group (Room 23.1.7. - Building 23)

   (organizer: Enric Ventura)


16:15 Coffee-Break (Building 23)


16:45 Augmented Intelligence Theorem Proving III (Room 23.1.7 - Building 23)

        (organizers: João Araújo and Michael Kinyon)

    Exercises for the session can be found here


Friday, 5 July 2024


10:00 Closing Session





To encourage participants to gather, enjoy meals together, and possibly discover new collaborative projects, we recommend the following dining options:


Monday: Espeto do Sul (Brazilian), Adamastor (Cervejaria), or San Marco (Italian)

Tuesday: Forneria (Italian), Telheiro (Traditional), or Nossa Casa (Seafood)

Thursday: Espeto do Sul (Brazilian), Forneria (Italian), or Nossa Casa (Seafood)


We hope these suggestions help make your evenings enjoyable and fruitful!