Malga Seminar
You can find below the dates and abstracts for the next Malga Seminar, as well as an archive of past talks (from 2025). An archive of past talks from 2009 can be found here. For any questions about the seminar, please do not hesitate to contact the organisers: Lidia Angeleri Hügel , Alessio Cipriani , Lleonard Rubio y Degrassi and Jorge Vitória .
🗓4 Feb 2026 - Padova, Torre Archimede, 2AB40 and online
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🕓15:45 UTC
Michael Chitayat
Borel subgroups of \(\mathsf{Aut}(\mathbb{A}^n)\)
Let \(X\) be an affine variety. It was recently proved that a connected solvable subgroup \(G \subseteq \mathsf{Aut}(X)\) can be decomposed as a semi-direct product \(G = T \ltimes U\) where \(T\) is an algebraic torus and \(U\) is a nested unipotent subgroup. A Borel subgroup of \(\mathsf{Aut}(X)\) is a maximal element of the set of connected solvable subgroups of \(\mathsf{Aut}(X)\). In this …
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🕓17:15 UTC
Jorge Vitória
Intrinsic homological algebra for triangulated categories
In this talk we systematically exploit the idea of “far-away-orthogonality” to discuss a plethora of subcategories of compactly generated triangulated categories which are intrinsically determined, and the relations between them. We will focus on the particular case of the special case of a triangulated category generated by a compact silting object. This is based on joint work with P. …
Upcoming seminars
- 25 Mar 2026, Fiorot Luisa, Esha Gupta, Verona.
- 29 Apr 2026, Davide Dal Martello, Alessio Cipriani, Padova.
- 20 May 2026, Anna Barbieri, Rene Marczinzik, Verona.
Previous seminars
- 14 Jan 2026. Federico Bambozzi, Classification of smashing localizations of Banach rings.
- 14 Jan 2026. Parth Shimpi, Pushing tilting theory to its limits.
- 3 Dec 2025. Ángel Del Río, N-Prime graph and units of integral group rings.
- 3 Dec 2025. Lleonard Rubio y Degrassi, On the non-vanishing of the first Hochschild cohomology of blocks of group algebras.
- 20 Nov 2025. Giulia Cavicchioni, Open problems in ring-linear coding theory.
- 20 Nov 2025. Alberto Tonolo, Periodic Sequences (from a joint paper with Luisa Fiorot and Riccardo Gilblas).
- 22 Oct 2025. Sofia Franchini, Homological properties of completions of discrete cluster categories.
- 22 Oct 2025. Juan Omar Gomez, Conservative geometric tt-functors via purity.
- 8 Oct 2025. Søren Gammelgaard, Quiver schemes and sheaves on noncommutative projective partial resolutions.
- 8 Oct 2025. Jan Šťovíček, Generation time for perfect complexes and weak global dimension.
- 19 May 2025. David Murphy, Admissible dissections of surfaces and piano algebras.
- 19 May 2025. Georgios Dalezios, On a class of quasi-hereditary algebras arising from Reedy categories.
- 30 Apr 2025. Jerzy Weyman, ADE correspondence for finite free resolutions.
- 30 Apr 2025. Valentina Grazian, Exotic fusion systems.
- 19 Mar 2025. Mima Stanojkovski, Stable lattices in Bruhat-Tits buildings: algebra, geometry, and combinatorics.
- 19 Mar 2025. Andreas Hochenegger, Cohomology of toric vector bundles via Weil decorations.
- 5 Feb 2025. Andriy Regeta, A characterization of rationality and Borel subgroups in the Cremona group.
- 5 Feb 2025. Francesco Sala, Yangians and cohomological Hall algebras.
- 22 Jan 2025. Willem De Graaf, Computational problems for algebraic groups.
- 22 Jan 2025. Felix Küng, Detecting non-Fourier-Mukai functors.