NEXT SEMINAR

Seminar 44

24 April 2024 @ UCLouvain
(room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor)

Speakers:

  • 14:00-15:00: Mateusz Stroinski (Uppsala University)
    • Tambara reconstruction

  • 15:15-16:15: Jonas Nehme (University of Bonn)
    • Khovanov arc algebras for the periplectic Lie superalgebras



    HISTORY

    2024

    Seminar 43

    12 March 2024 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.60)

    Speakers:

  • 15:00-16:00: Jacek Krajczok
    • Invariants of q-deformed compact Lie groups

  • 16:00-17:00: Davide Dal Martello
    • Quantum cluster varieties, quiver seizures, and GDAHA



    Seminar 42

    8 February 2024 @ ULB
    (Salle de Profs, 9th floor, building NO, Campus Plaine, ULB.)

    Speakers:

  • 14:00-14:50: Tomasz Brzezinski (University of Swansea)
    • Lie algebras on affine spaces

  • 15:00-15:50: Arne Van Antwerpen (UGent)
    • Quadratic algebras of left non-degenerate set-theoretic solutions of the Yang-Baxter equation



    2023

    Seminar 41

    18 December 2023 @ UCLouvain
    (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor)

    Speakers:

  • 14:00-15:00: Severin Barmeier (University of Cologne)
    • A∞ deformations of extended Khovanov arc algebras

  • 15:15-16:15: Samuel Hannah (Cardiff University)
    • Classifying Frobenius Algebras in Dijkgraaf-Witten Categories



    Seminar 40

    8 November 2023 @ ULB
    ("Salle des profs", batiment NO, 9th floor, campus Plaine)
    Because of the train strike, the seminar will take place at ULB and not at UCL.

    Speakers:

  • 14:00-15:00: Rubén Martos Prieto (Université de Lille)
    • Equivariant Kasparov category and tt-geometry

  • 15:15-16:15: Edmund Heng (IHES Paris)
    • A generalised McKay correspondence for fusion categories



    Seminar 39

    10 October 2023 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.60)

    Speaker:

  • 14:30-15:30: Lucas Hataishi (University of Oslo)
    • C*-algebraic factorization homology



    Seminar 38

    8 June 2023 @ ULB
    ("Salle des profs", batiment NO, 9th floor, campus Plaine)

    Speakers:

  • 14:00-15:00: Mykola Khrypchenko (Universidade Federal de Santa Catarina)
    • Regular Hom-Lie structures on incidence algebras

  • 15:15-16:15: Melvin Yeung (UHasselt)
    • Smooth morphisms and Cauchy-Kovalevskaya for Bialgebras



    Seminar 37

    27 April 2023 @ UCLouvain
    (Room E.349, building Marc de Hemptinne (cyclotron), tower E, 3rd floor)

    Speakers:

  • 14:00-15:00: Leonardo Maltoni (Paris)
    • Towards a Bernstein presentation of the affine Hecke category

  • 15:15-16:15: Alexis Langlois-Rémillard (Ghent)
    • Uncoiled affine et periodic Temperley-Lieb algebras and their Wenzl-Jones idempotents



    Seminar 36

    30 March 2023 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.60)

    Speakers:

  • 14:00-15:00: Bob Yuncken
    • Crystallizing compact semisimple Lie groups

  • 15:15-16:15: Simon Schmidt
    • Solution group representations as quantum symmetries of graphs



    Seminar 35

    23 February 2023 @ ULB
    ("Salle des profs", batiment NO, 9th floor, campus Plaine)

    Speakers:

  • 14:00-15:00: David Jaklitsch (Hamburg)
    • Interaction of duals and pivotal structures with Morita theory

  • 15:15-16:15: Eliezer Batista (Florianopolis)
    • Quantum Inverse Semigroups



    2022

    Seminar 34

    23 November 2022 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.60)

    Speakers:

  • 13:00-14:00: Lukas Rollier (KU Leuven)
    • Quantum automorphism groups of connected locally finite graphs

  • 14:15-15:15: Marco Mackaay (U. Algarve)
    • Finitary 2-representation theory

  • 15:30-16:30: Benjamin Anderson-Sackaney (Université de Caen)
    • Relative Amenability, Amenability, and Coamenability of Coideals



    Seminar 33

    19 October 2022 @ UCLouvain
    (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor)

    Speakers:

  • 14:00-15:00: Jieru Zhu (UCLouvain)
    • Web deformations over superalgebras

  • 15:00-16:00: Geoffrey Janssens (UCLouvain)
    • Comparing additive and monoidal categorification via Quantum Affine Algebras



    Seminar 32

    30 June 2022 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.324)

    Speakers:

  • 15:00-16:00: Bart Vlaar (Max Planck, Bonn)
    • The cylindrical nature of Drinfeld-Jimbo quantum groups and the origin of trigonometric K-matrices

  • 16:00-17:00: István Heckenberger (Philipps-Universität Marburg)
    • A meeting of Nichols algebras and color Lie bialgebras



    Seminar 31

    27 May 2022 @ ULB
    ("Salle des profs", batiment NO, 9th floor, campus Plaine)

    Speakers:

  • 14:00-15:00: Sugato Mukhopadhyay
    • Levi-Civita connections on bicovariant differential calculus

  • 15:00-16:00: Réamonn Ó Buachalla (Mathematical Institute of Charles University in Prague)
    • Quantum Root Vectors and a Dolbeault Double Complex for the A-Series Quantum Flag Manifolds

  • 16:00-17:00: Alessandro Carotenuto (Institute of Mathematics of the Czech Academy of Sciences in Prague)
    • Bimodule connections for line bundles over irreducible quantum flag manifolds



    Seminar 30

    2 May 2022 @ UCLouvain
    (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor)

    Speakers:

  • 14:00-15:00: Léo Schelstraete (UCLouvain)
    • Odd Khovanov homology and 2-supercategories

  • 15:00-16:00: Piotr Soltan (University of Warsaw)
    • Quantum groups and factors



    Seminar 29

    28 March 2022 @ ULB
    (Salle Solvay, campus Plaine, building NO, 5th floor)

    Speakers:

  • 14:00-15:00: Jari Desmet (UGent)
    • Non-associative Frobenius algebras for simple algebraic groups

  • 15:00-16:00: Sira Gratz (University of Glasgow)
    • SL(k)-friezes from Cluster Algebras



    Seminar 28

    22 February 2022 @ UCL
    (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor)

    Speakers:

  • 14:00-15:00: Joel Right Dzokou Talla (VUB)
    • Quantum SL(2,R) and its irreducible representations

  • 15:00-16:00: Louis-Hadrien Robert (Université de Luxembourg)
    • Categorification of 1 and of the Alexander polynomial



    2021

    Seminar 27

    12 November 2021 @ VUB
    (campus Etterbeek, Building G, 6th floor, room G6.324)

    Speakers:

  • 14:00-15:00: Leandro Vendramin (VUB)
    • Groups, rings and the Yang-Baxter equation

  • 15:00-16:00: Jacques Darné (UCLouvain)
    • Nilpotent quandles



    Seminar 26

    22 October 2021 @ ULB
    ("Salle des profs", batiment NO, 9th floor, campus Plaine)

    Speakers:

  • 14:00-15:00: Alfons Van Daele (KUL)
    • Finite quantum hypergroups

  • 15:00-16:00: Johannes Berger (ULB)
    • Modified traces and monadic cointegrals for quasi-Hopf algebras



    2020

    Seminar 25 - Canceled due to COVID-19 emergency
    (18 March 2020 @ ULB (Room TBA))

    Speakers:

  • 10:00-11:00: István Heckenberger
    • Lusztig's PBW bases from the perspective of braided Hopf algebras

  • 11:00-12:00: Simon Lentner
    • New Borel subalgebras of quantum groups



    Seminar 24 (19 February 2020 @ UCL (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor))

    Speakers:

  • 11:00-12:00: Laiachi El Kaoutit (Universidad de Granada)
    • Lie Algebroids, Groupoids and Hopf Algebroids: a brief introduction. (Presentation)

  • 12:00-13:00: Ruslan Maksimau (Université Montpellier)
    • Geometric construction of DG-enhanced versions of nil-Hecke algebras



    Seminar 23 (5 February 2020 @ VUB (Room 6G324))

    Speakers:

  • 14:00-15:00: Nicolas Crampé (Université Montpellier)
    • Schur-Weyl Duality and Racah Algebra

  • 15:00-16:00: Hadewijch De Clercq (UGent)
    • Defining Relations for Quantum Symmetric Pair Coideals of Kac-Moody Type



    2019

    Seminar 22 (6 December 2019 @ ULB (Salle Solvay, batiment NO, 5ième étage))

    Speakers:

  • 11:00-12:00: José Gómez-Torrecillas
    • An example of a biseparable ring extension which is not Frobenius

  • 12:00-13:00: Ehud Meir
    • Invariant theory, symmetric groups and Hopf algebras



    Seminar 21 (26 November 2019 @ UCL (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor))

    Speakers:

  • 14:00-15:00: Stephen Moore
    • The Representation Theory of the finite and infinite Temperley-Lieb algebras



    Seminar 20 (17 October 2019 @ UCL (Room B203-05, building Marc de Hemptinne (cyclotron), tower B, 2nd floor))

    Speakers:

  • 10:45-11:35: Juliet Cooke (UCLouvain)
    • Skein Categories

  • 11:55-12:45: Abel Lacabanne (UCLouvain)
    • Categorification of Z-modular data associated with complex reflection groups



    Seminar 19 (19 June 2019 @ ULB (Room OF2072))

    Speakers:

  • 13:30-14:20: Tom De Medts (UGent):
    • Decomposition algebras and representation theory

  • 14:35-15:25: Ruben Henrard (UHasselt)
    • Localizations of one-sided exact categories

  • 15:40-16:30: Adam-Christiaan Van Roosmalen (UHasselt)
    • Deriving one-sided exact categories



    Seminar 18 (8 May 2019 @ VUB (Room 6G324))

    Speakers:

  • 14:00-14:50: Haonan Zhang:
    • Idempotent states on Sekine quantum groups

  • 15:00-15:50: Mateusz Wasilewski:
    • Quantum isomorphisms of graphs and monoidal equivalence



    Seminar 17 (5 April 2019 @ ULB (Room OF2072))

    Speakers:

  • 11:00-11:50: Marco Matassa:
    • Kähler structures on quantum irreducible flag manifolds

  • 12:00-12:50: Andrey Krutov:
    • Schubert calculus for quantum irreducible flag manifolds



    Seminar 16 (29 March 2019 @ UCL Room: B203-05 (building Marc de Hemptinne (cyclotron), tower B, 2nd floor))

    Speakers:

  • 10:00-10:50: Daniel Tubbenhauer (University of Zurich)
    • A Tale of Dihedral groups SL(2), and beyond

  • 11:00-11:50: Paolo Saracco (ULB)
    • One-sided Hopf algebras and Frobenius pairs of functors for Hopf modules



    2018

    Seminar 15 (22 November 2018 @ ULB room P.2NO.707 (Building NO, 7th floor))

    Speakers:

  • 14:00-14:50: Loïc Foissy (Calais)
    • Chromatic and Ehrhart polynomial, Combinatorial Hopf algebras

  • 15:00-15:50: Alessandro Iraci (ULB)
    • The Delta Conjecture



    Seminar 14 (25 October 2018 @ VUB room D.1.07)

    Speakers:

  • Laura Maassen (RWTH Aachen University) (14:00-14:50)
    • The Intertwiner Space of Non-easy Group-theoretical Quantum Groups

  • Johan Konings (VUB) (15:00-15:50)
    • A Correspondence between Homogeneous and Galois Coactions of Hopf algebras



    Seminar 13 (6 and 7 September 2018)

    Speaker: Claudia Menini

  • 6 September 2018 @ ULB Salle de Profs (11:00)
    • Heavy Separable Functors.

  • 7 September 2018 @ VUB Room 6G324 (15:00)
    • Why Heavily Separable Functors? Comparing Monadic and adjoint decomposition.



    Seminar 12 (27 June 2018 @ ULB building N.O. "Salle Solvay")

    Speakers:

  • 14:00 - 14:55: Eliezer Batista
    • Partial group actions on monoidal categories.

  • 15:05 - 16:00: Bregje Pauwels
    • The tale site of the stable module category of a finite group



    Seminar 11 (28 February 2018 @ VUB (Room 6G324))

    Speakers:

  • 14:00 - 14:55: Frank Taipe
    • Algebraic Transformation Quantum Groupoids

  • 15:00 - 15:55: Réamonn Ò Buachalla
    • Schubert Calculus for Quantum Grassmannians



    2017

    Seminar 10 (5 December 2017 @ UCL (Room E.161))

    Speakers:

  • 14:30 - 15:20: Andrea Appel (Edinburgh)
    • Quantum groups, braid groups and monodromy

  • 15:30 - 16:20: Adrien Brochier (Hamburg)
    • Quantum character varieties



    Seminar 9 (9 November 2017 @ VUB (Room 6G324))

    Speakers:

  • 14:30 - 15:20: Marco Matassa
    • On PBW-deformations of braided exterior algebras

  • 15:30 - 16:20: Alexey Gordienko (VUB)
    • Equivalences of Hopf (co)module structures on algebras.



    Seminar 8 (12 October 2017 @ VUB (Room 6G324) and ULB (Room P.OF.2072))

    Speakers:

  • 11:00 - 12:00: Gabriella Böhm (Wigner Research Centre for Physics, Budapest) @ VUB
    • Hopf monads from lax functors

  • 14:00 - 15:00: Tomasz Brzezinski (Swansea University,UK) @ ULB
    • Betwixt and between, neither a brace nor a ring.

  • 15:15 - 16:15: Jürgen Fuchs (Karlstads Universitet, Karlstad) @ ULB
    • Correlators for non-semisimple conformal field theories.



    Seminar 7 (22 mai 2017 @ VUB (Room 6G324))

    Speakers:

  • 14:30 - 15:20: Matthias Valvekens (KU Leuven)
    • L2-Betti numbers for representation categories

  • 15:30 - 16:20: Matthias Floré (VUB)
    • A field of quantum upper triangular matrices



    Seminar 6 (24 april 2017 @ VUB (Room 6G324))

    Speakers:

  • 14:30 - 15:20: David Jordan (University of Edinburgh)
    • Dualizability and orientability for tensor and braided tensor categories

  • 15:30 - 16:20: Alexis Virelizier (Université Lille 1)
    • Generalized Kuperberg invariants of 3-manifolds



    Seminar 5 (20 march 2017 @ UCL CYCL01 (Room E.349))

    Speakers:

  • 14:00-14:50 Grégoire Naisse (UCL)
    • Categorification of Verma modules

  • 15:20-16:10 Ruslan Maksimau (Montpellier)
    • Higher level affine Hecke algebras



    Seminar 4 (20 februari 2017 @ UCL CYCL01)

    Speakers:

  • 14:00-14:50 Johan Oinert (Blekinge Institute of Technology, Sweden)
    • Epsilon-strongly group graded rings and partial skew group(oid) rings

  • 15:20-16:10 Peng Shan (Univ. Paris Sud (Paris-Orsay))
    • Categorification of quantum symmetric pairs



    Seminar 3 (6 februari 2017 @ ULB building N.O. "Salle de profs, 9th floor")

    Speakers:

  • 14:30-15:20 Ehud Meir
    • Hopf algebras via geometric invariant theory

  • 15:30-16:20 Christina Vasilakopoulou
    • measuring coalgebras



    2016

    Seminar 2 (12 december 2016 @ ULB building N.O. "Salle Solvay")

    Speakers:

  • 15:00-15:50 Jonas Wahl (KU Leuven)
    • Free wreath product quantum groups and standard invariants of subfactors

  • 16:00-16:50 Paolo Saracco (University of Turin)
    • A reconstruction theorem for coquasi-bialgebras with preantipode



    Seminar 1 (7 november 2016 @ VUB room G6.324)

    Speakers:

  • 15:05-15:55: Stefan Waldmann (University of Würzburg)
    • A universal construction of universal deformation formulas and Drinfel'd twists

  • 16:05-16:55: Ivo Dell'Ambrogio (Université de Lille)
    • Monadicity of restriction functors and spans of groupoids



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