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 and Jorge Vitória .
🗓3 Dec 2025 - Padova, Torre Archimede, 2BC30 and online
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🕓15:45 UTC
Lleonard Rubio y Degrassi
On the non-vanishing of the first Hochschild cohomology of blocks of group algebras
Hochschild cohomology is a powerful invariant under various categorical equivalences, such as derived equivalences or stable equivalences of Morita type. However, our understanding of Hochschild cohomology of finite-dimensional algebras remains quite limited. In this talk, I will focus on recent advances on a conjecture posed by Linckelmann, which predicts that if \(B\) is a block of a group …
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🕓17:15 UTC
Ángel Del Río
N-Prime graph and units of integral group rings
The N-prime graph of a group \(G\) is the directed graph whose vertices are the primes occurring as the order of an element of \(G\), and the arrows are of the form \(p\to q\) for \(p\) and \(q\) different vertices such that \(G\) contains an element of order \(p\) whose normalizer in \(G\) has an element of order \(q\).
We will present some recent results, obtained in cooperation with E. …
Upcoming seminars
- 14 Jan 2026, Parth Shimpi, Verona.
- 4 Feb 2026, Michael Chitayat, Padova.
- 25 Mar 2026, Esha Gupta, Verona.
- 29 Apr 2026, Alessio Cipriani, Padova.
- 20 May 2026, Rene Marczinzik, Verona.
Previous seminars
- 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.