Aarhus Homological Algebra Group

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Seminar@Aarhus

Upcoming seminars

Contacts

Peter Jørgensen

Professor
M
H 1530, 415

Recent seminars

Homological Algebra Symposium
Sofia Franchini, Karin M Jacobsen, Greg Stevenson
Wednesday 27 November 2024 13:30–17:00 Aud. D2 (1531-119)
Symposium (AarHomAlg)
Silting reduction using generalised concentric twin cotorsion pairs
Erlend Børve (Universität zu Köln)
Wednesday 20 November 2024 16:15–17:15 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)

Seminars in 2024

Homological Algebra Symposium
Sofia Franchini, Karin M Jacobsen, Greg Stevenson
Wednesday 27 November 2024 13:30–17:00 Aud. D2 (1531-119)
Symposium (AarHomAlg)
Silting reduction using generalised concentric twin cotorsion pairs
Erlend Børve (Universität zu Köln)
Wednesday 20 November 2024 16:15–17:15 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Silting objects, torsion classes, and cotorsion classes
Esha Gupta (Université Paris-Saclay)
Wednesday 13 November 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Endotrivial modules for the quaternion group and iterated Jokers in chromatic homotopy theory
Andrew Baker (University of Glasgow)
Wednesday 6 November 2024 16:15–17:15 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Categorifying triangulations in completed infinity-gons
Matthew Pressland (University of Glasgow)
Wednesday 23 October 2024 16:15–17:15 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Easy computations of Hochschild cohomology via a generalization of a method of Etingof and Eu
Mads H Sandøy (NTNU)
Wednesday 9 October 2024 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Linear Reedy categories and algebras
Jan Šťovíček (Charles University)
Wednesday 2 October 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Homological Algebra Symposium
Esther Banaian, Monica Garcia, Emily Gunawan
Wednesday 15 May 2024 13:30–17:00 Aud. F (1534-125)
Symposium (AarHomAlg)
Evaluation functor and birepresentations for Soergel bimodules in affine type A.
Vanessa Miemietz (University of East Anglia)
Wednesday 1 May 2024 16:15–17:00 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Mutation of signed quivers and presentations of simple Lie algebras
Davide Morigi (Aarhus University)
Wednesday 17 April 2024 16:15–17:00 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
The Auslander-Gorenstein condition for monomial algebras
Viktoria Klasz (University of Bonn)
Wednesday 3 April 2024 16:15–17:00 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Frobenius algebra objects in Temperley-Lieb categories at roots of unity
Joseph Grant (University of East Anglia)
Wednesday 13 March 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Higher torsion classes and silting complexes
Sondre Kvamme (NTNU)
Wednesday 28 February 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
A geometric model for semilinear locally gentle algebras
Karin Jacobsen (Aarhus University)
Wednesday 14 February 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Nakayama functors are wannabe Serre functors
David Nkansah (Aarhus University)
Wednesday 31 January 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)
Snake Graphs for Graph LP Algebras
Elizabeth Kelley (University of Illinois Urbana-Champaign)
Wednesday 24 January 2024 16:15–17:15 Koll. G3 (1532-218)
Mathematics Seminar (AarHomAlg)

Seminars in 2023

Classes of modules of projective dimension at most n over commutative rings and Bass' Theorem
Giovanna Le Gros (Universitat Autonoma de Barcelona)
Wednesday 29 November 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
String algebras over local rings: admissibility and biseriality.
Raphael Bennett-Tennenhaus (Aarhus University)
Wednesday 15 November 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Homological Algebra Symposium
Wednesday 1 November 2023 13:30–17:00 Aud. D2 (1531-119)
Symposium (AarHomAlg)
Orthogonality of weight and t-structures via derived projective covers
Lukas Bonfert (MPIM Bonn)
Wednesday 25 October 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Grassmannian Cluster Algebras and Combinatorics
Kayla Wright (University of Minnesota)
Wednesday 18 October 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Towards "super" cluster algebras of type A
Francesca Fedele (University of Leeds)
Wednesday 4 October 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Koszul homomorphisms in local commutative algebra
Ben Briggs (University of Copenhagen)
Wednesday 20 September 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Quadratic and Koszul duality, and automorphisms for algebras of non-commutative power series.
Sergey Arkhipov (Aarhus University)
Wednesday 13 September 2023 16:15–17:15 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Annihilators of Ext modules and applications
Özgür Esentepe (University of Leeds)
Wednesday 6 September 2023 16:00–17:00 Koll. G4 (1532-222)
Mathematics Seminar (AarHomAlg)
Homological Algebra Symposium
Friday 9 June 2023 14:15–17:00 Aud. D4 (1531-219)
Symposium (AarHomAlg)
A facial order for torsion classes
Eric Hanson (Université de Sherbrooke)
Wednesday 31 May 2023 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
The heart fan of a triangulated category
David Ploog (Universitetet i Stavanger)
Wednesday 26 April 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)
Dimers, crystals and quantum Kostka numbers
Christian Korff (University of Glasgow)
Wednesday 15 March 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)
Finite Dimensional Differential Graded Algebras
Isambard Goodbody (University of Glasgow)
Wednesday 8 March 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)
Cluster categories, tropical mirror symmetry and quantization
Jan Grabowski (Lancaster University)
Wednesday 1 March 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)
Bracelets are theta functions for surface cluster algebras
Fan Qin
Wednesday 22 February 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar
Cluster Expansion via matrices
Emine Yıldırım (University of Leeds)
Wednesday 15 February 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)
The finitistic dimension conjecture via Igusa-Todorov functions
Jose Vivero
Wednesday 1 February 2023 14:15–15:15 Koll. G (1532-214)
Mathematics Seminar (AarHomAlg)

Seminars in 2022

Functor categories and the strong no loop conjecture.
Carlo Klapproth (Aarhus Universitet)
Wednesday 7 December 2022 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Symposium on Homological Algebra
Wednesday 23 November 2022 14:15–17:00 Aud. G1 (1532-116)
Symposium (AarHomAlg)
Revisiting the New Intersection Theorem
Lars Winther Christensen (Texas Tech University)
Friday 11 November 2022 14:15–15:15 Aud. D1 (1531-113)
Mathematics Seminar (AarHomAlg)
Simple-minded mutation in general triangulated categories
Raquel Coelho Guardado Simoes (Lancaster University)
Wednesday 9 November 2022 15:45–16:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Generalisations of Total Positivity and Cluster Algebras
Dani Kaufman (University of Copenhagen)
Wednesday 26 October 2022 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Mutation in higher cluster categories
Nicholas Williams (Lancaster University)
Wednesday 12 October 2022 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Pure braid group presentations via longest elements
Caroline Namanya (University of Glasgow)
Wednesday 28 September 2022 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Higher torsion classes and $\tau_n$-tilting theory
Jenny August (Aarhus Universitet)
Wednesday 14 September 2022 14:15–15:15 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
On tau-tilting subcategories of abelian categories
Javad Asadollahi (University of Isfahan)
Wednesday 31 August 2022 14:15–15:00 Aud. G2 (1532-122)
Mathematics Seminar (AarHomAlg)
Grothendieck Groups of Discrete Cluster Categories
Dave Murphy (University of Glasgow)
Wednesday 27 July 2022 14:15–15:15 Aud. D3 (1531-215)
Mathematics Seminar (AarHomAlg)
Update on singular equivalences between commutative rings
Martin Kalck (University of Freiburg)
Wednesday 15 June 2022 14:15–15:00 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Chains of torsion classes and weak stability conditions
Aran Tattar (Universität zu Köln)
Wednesday 25 May 2022 14:15–15:00 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Symposium on Koszul Algebras and Abelian Categories
Wednesday 11 May 2022 14:15–17:00 Aud. D1 (1531-113)
Symposium (AarHomAlg)
Functorial approach to rank functions
Alexandra Zvonareva (University of Stuttgart)
Wednesday 27 April 2022 14:15–15:00 Zoom
Mathematics Seminar (AarHomAlg)
Singularities arising from cluster algebras
Eleonore Faber (University of Leeds)
Wednesday 30 March 2022 14:15–15:00 Zoom
Mathematics Seminar (AarHomAlg)
Algebras from Orbifolds
Esther Banaian (Aarhus University)
Wednesday 16 March 2022 14:15–15:00 G3.2 (1532-318)
Mathematics Seminar (AarHomAlg)
$q$-analogues of numbers and of matrices.
Sophie Morier-Genoud (Université Reims Champagne Ardenne)
Wednesday 2 March 2022 14:15–15:00 Zoom
Mathematics Seminar (AarHomAlg)
nZ-cluster tilting for Nakayama algebras
Martin Herschend (Uppsala universitet)
Wednesday 16 February 2022 14:15–15:00 Zoom
Mathematics Seminar (AarHomAlg)

Seminars in 2021

Compatible structures in higher homological algebra
Amit Shah (Aarhus University)
Wednesday 8 December 2021 14:15–15:00 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
The Q-shaped derived category of a ring
Henrik Holm (University of Copenhagen)
Wednesday 1 December 2021 14:15–15:00 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
On the notion of an extriangulated functor
Raphael Bennett-Tennenhaus (Universität Bielefeld)
Wednesday 3 November 2021 14:15–15:00 G3.1 (1532-314)
Mathematics Seminar (AarHomAlg)
Friezes and Triangulated Categories
Wednesday 20 October 2021 14:15–17:00 Aud. D1 (1531-113)
Symposium (AarHomAlg)
Mutation via injective envelopes
Lidia Angeleri Hügel (University of Verona)
Wednesday 15 September 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Generalised cluster categories from n-Calabi-Yau triples
Francesca Fedele (University of Verona)
Wednesday 8 September 2021 15:15–16:00 Aud. D3 (1531-215)
Mathematics Seminar (AarHomAlg)
Tropical disks counting, stability conditions in symplectic geometry and quiver representations
Man-Wai Cheung (Harvard University)
Monday 10 May 2021 13:00–14:00 Zoom
Mathematics Seminar (AarHomAlg)
The Poisson spectrum of the symmetric algebra of the Virasoro algebra
Susan J. Sierra (University of Edinburgh)
Wednesday 5 May 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Hearts for commutative noetherian rings: derived equivalences and torsion pairs
Jorge Vitoria (University of Cagliari)
Monday 26 April 2021 13:00–14:00 Zoom
Mathematics Seminar (AarHomAlg)
Infinite friezes
Ilke Canakci (Vrije Universiteit Amsterdam)
Wednesday 21 April 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Orbifold diagrams and skew group categories
Karin Baur (University of Leeds)
Wednesday 17 March 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Mutation and minimal inclusions of torsion classes
Rosanna Laking (University of Verona)
Wednesday 10 March 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Grassmannians, Cluster Algebras and Hypersurface Singularities
Sira Gratz (University of Glasgow)
Wednesday 24 February 2021 14:15–15:15 Zoom
Mathematics Seminar (AarHomAlg)
Revised 28.01.2025
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Peter Jørgensen