AAA 109 

Plenary Talks 

Igor Dolinka: Canone inverso

Ruiwen Dong: S-unit equations in modules 

António Malheiro: Plactic monoids in the hierarchy of quadratic normalisations

Michael Pinsker: Mixed identities in oligomorphic groups

Nóra Szakács: Inverse semigroup algebras and C*-algebras: simplicity and examples


Contributed Talks 

Marco Abbadini: Ideals and slices over the algebra of constants

Mohammad Abdulla: From Finite Lattices to Boolean Algebras via Canonical Completions

Tamás Ágoston: Monoidal intervals for idempotent transformation monoids

Erhard Aichinger: Polynomial interpolation in algebras with a Mal’cev term

Meruyert Arapbay: Finite lattices generating not finitely based and non-standard quasivarieties

Serhii Bardyla: Reconstructing Polish topologies on endomorphism monoids

Tristan Bice: Steinberg Algebras over Ample Semicategories and their Boolean-Cartan Restriction Semigroups

Bernardo Bocci: On the variety generated by the standard MV-monoid on the real unit interval [0,1]

Stefano Bonzio: Polin algebras revisited

Václav Cenker: Symmetric Difference in Lattices With Complementation

Ivan Chajda: Operators Max L and Min U and duals of Boolean posets

Lorenzo Clemente: Commutative algebras of series

Ivana Ðurđev: Nilpotency and solvability of groupoids with zero

Stefano Fioravanti: Clonoids with a finite lattice target

Jakub Gismatullin: Non-closed products of conjugacy classes

Kamilla Kátai-Urbán: Finitely 2-representable lattices

Pavol Kollár: Determining the level of symmetry in vertex-transitive graphs

Michael Kompatscher: Minions of nilpotent groups

Jacek Krzaczkowski: Circuit Evaluation Problem over Finite Algebras

Helmut Länger: A Cayley theorem for distributive lattices

Erkko Lehtonen: Intersective affine clonoids

Riley J. Logan: Minimal Clones Generated by Eq-Scheme Semiprojections

Riza Mutalip: Automorphisms of free braided nonassociative algebras of rank 2

Altyngul Naurazbekova: Automorphisms and derivations of a universal left-symmetric enveloping algebra

Reinhard Pöschel: Generalized quasiorders for maximal clones

Sławomir Przybyło: Linear Double Equivalential Algebras

Branimir Šešelja: Canonical representation of omega-algebras

David Stanovský: The center of an inverse semigroup

Kristóf Varga: Universal algebraic geometry of bands

Stefan Veldsman: A theory of congruences and Birkhoff’s Theorem for matroids

Jan Philipp Wächter: Quadratic Equations in Wreath Products of Abelian Groups

Tamás Waldhauser: Irreducible polyadic semigroups admitting the adjunction of a neutral element

Jingjie Yang: The Finite Length Property of the Rado Graph and Friends

Yurii Zhuchok: On generalized weak left *-braces

SAL 2026

Plenary Talks 

Victoria Gould: Proper left Ehresmann semigroups

Robert D. Gray: Magnus submonoids and membership problems in one-relator, surface and hyperbolic groups

Filip Mazowiecki: Boundedness for weighted automata over the tropical semiring

Emanuele Rodaro: On Context-Free Inverse Graphs and Their Associated Groups and Semigroups


Contributed Talks 

Jorge Almeida: Open multiplication in free profinite semigroupoids

Luka Andrenšek: Endomorphisms of Hecke–Kiselman Monoids Associated to Simple Oriented Graphs

Callum Barber: Diagonal Subsemigroups and Congruences on a Semigroup

Ádám Budai: Admissible extensions of Clifford semigroups by groups

Matthias Fresacher: Toward post-quantum cryptography using diagram monoids and their representations

Marianne Johnson: Faithful matrix representations of diagram categories and monoids

Francisco Gabriel Klock Campos Vidal: Abstract rewriting systems and partial actions of monoids on semigroups

Eugenia Kochubinska: Wreath powers of monogenic inverse monoids: trees, normal forms, and presentations

Jörg Koppitz: All Maximal Congruences on an Inverse Semigroup of Fence-preserving Transformations

Ana Catarina Monteiro: Green Languages on Free Inverse Monoids

Patipan Nillaphant: On α-bases and covered α-ideals in semigroups

Gonçalo da Câmara e Almeida Pinto: On Ordered Regular Semigroups with Biggest Associates

Catherine Maria Ann Reilly: Rational Subsets of One-Relator Free-by-Cyclic Groups

Thaísa Tamusiunas: A Generalization of the Ehresmann-Schein-Nambooripad Theorem to Two-Sided Ehresmann Semigroupoids

Francesco Tesolin: A Milnor–Schwarz Lemma for inverse monoids

Riccardo Venturi: Simplicity and irreducibility in circular automata

Martin Zahradníček: Languages Recognised by Annular Planar Two-Way Automata

Yayi Zhu: Presentations for the Brauer monoid and its ideals

Anatolii Zhuchok: Determinability of free objects in some varieties of algebras