* Seuraavan viikon tapahtumat merkitty tähdellä
Emma Kamutta (Aalto)
Midterm review
* Friday 10 April 2026, 10:15, M2 (M233)
Milo Orlich
What is a Cohen-Macaulay ring?
* Monday 13 April 2026, 14:15, M3 (M234)
TBA
AGC Seminar
Ian Välimaa (Aalto University)
Concentration of large random Gram matrices
* Tuesday 14 April 2026, 10:15, M3 (M234)
This talk discusses the concentration of a Gram matrix XX^T and its off-diagonal part, where X is a large random matrix with independent and centered entries bounded by one. Such matrices play a fundamental role in high-dimensional statistics including covariance matrix estimation, dimension reduction and tensor clustering. It is well-known that, under suitable assumptions, the empirical eigenvalue distribution of the Gram matrix converges to the Marchenko-Pastur distribution. Furthermore, the extremal eigenvalues converge to the edges of the limiting distribution. In contrast, less is known about the behavior when the diagonal is removed. This talk focuses on the extremal eigenvalues of the off-diagonal part of the Gram matrix. The first half of the talk presents an asymptotically sharp, high-probability bound for these extremal eigenvalues of the off-diagonal part, while the second half outlines the proof.
Mathematical physics seminar
Miika Rankaviita (Aalto)
Midterm review: TBA
Monday 20 April 2026, 14:15, M3 (M234)
TBA
AGC Seminar
Dr. Daniel Bath (KU Leuven)
Geometry and singularities of configuration hypersurfaces
Tuesday 21 April 2026, 15:15, M3 (M234)
Every graph has a Kirchoff polynomial. This is a multivariate polynomial whose monomial support naturally corresponds to the spanning trees of the graph. Kirchoff polynomials are the first examples of configuration polynomials. Every subspace of a based vector space yields a configuration polynomial which exhibits tension between the combinatorics of the underlying matroid and the geometry of the vector space embedding. Configuration polynomials appear in the literature around Feynman integrals, but are also algebraically/combinatorially interesting in their own right. I will describe the construction and discuss algo-geometric aspects of configuration hypersurfaces including: their singularities (which turn out to be rational/strongly F-regular); their dual varieties; their normalized Nash blow-ups; the singularities of the latter (which also turn out to be similarly nice). Time permitting I will hint at an explicit resolution of singularities. This is based on various joint works between the author and various subsets of Denham, Mustata, Schulze, and Walther.
ANTA Seminar / Hollanti et al.
Akseli Jussinmäki
TBA (Mid-term review)
Wednesday 22 April 2026, 10:15, M3 (M234)
Seminar on analysis and geometry
Etna Lindy (Aalto)
TBA
Monday 27 April 2026, 14:15, M3 (M234)
TBA
AGC Seminar
MSc Ian Välimaa (Aalto)
Mid-term review
Monday 27 April 2026, 15:15, Y405
Aalto Stochastics & Statistics Seminar / Leskelä
Matematiikan kandiseminaari (Bachelor thesis seminar in Math.)
Friday 08 May 2026, 09:00, TBA
Further information
Ohjelma: https://mycourses.aalto.fi/course/view.php?id=34597#module-908887
Zofia Grochulska
TBA
Wednesday 13 May 2026, 10:15, M3 (M234)
Seminar on analysis and geometry / Korte
Michael Yang
TBA (master's thesis presentation)
Monday 18 May 2026, 14:15, M3 (M234)
TBA
AGC seminar
Tuomas Kelomäki
TBA
Monday 25 May 2026, 14:15, M3 (M234)
TBA
AGC seminar
Prof. Iván Blanco Chacón (U. Alcalá)
Summer School on Heegner Points and the Gross-Zagier Formula
Monday 01 June 2026, 10:00, U5 (U147)
Further information
The summer school will take place June 1-5, click 'further info' above for more information and schedule. Registration is mandatory but free of charge. Please register as soon as possible. Pre-requisites: a course on algebraic number theory and some basics on elliptic curves. Organizers: Iván Blanco, Matilde Costa, Antti Haavikko, and the ANTA group.
ANTA Group & U. Alcála
Matematiikan kandiseminaari (Bachelor thesis seminar in Math.)
Monday 15 June 2026, 09:00, TBA
Further information
Ohjelma: https://mycourses.aalto.fi/course/view.php?id=34597#module-908887
Prof. Timothy Trudgian (UNSW Canberra)
TBA
Thursday 09 July 2026, 15:15, M3 (M234)
ANTA Seminar / Hollanti et al.
Prof. Guillermo Mantilla-Soler (U. Nacional de Colombia)
TBA
Tuesday 25 August 2026, 15:15, M3 (M234)
ANTA Seminar / Hollanti et al.
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