Hodge Theory
2025-01-29 12:00 - 13:30 (Europe/Berlin) | Mainz, Hilbertraum (05-432)
Georg Tamme (Universität Mainz): Mixed Hodge structures on smooth varieties III

Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
2025-01-30 14:00 - 17:30 | Frankfurt, Robert-Mayer-Str. 6-8, Raum 309
14:00 – 15:30 Talk 8: Amine Koubaa (Goethe Universität): Preparations for Proposition 11: the Tate conjecture
Coffee break
16:00 – 17:30 Talk 9: Magnus Carlson (Goethe Universität): Sections geometric up to torsion

Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
2025-01-31 09:00 - 11:00 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
Alireza Shavali (Universität Heidelberg): Hecke eigensystems and Galois representations for quaternion
algebras

Vector bundles on curves
2025-02-04 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Jon Miles: tCohomology of Bun_n
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Hodge Theory
2025-02-05 12:00 - 13:30 | Mainz, Hilbertraum (05-432)
Tom Bachmann (Universität Mainz): Mixed Hodge structures on singular varieties

Moduli of Quiver Representations and GIT Quotients
2025-02-06 14:00 - 16:30 | Frankfurt, Rober-Mayer-Str. 10, Raum 711 klein
14:00 – 15:00 Talk 6.1: Andreas Gross (Goethe Universität): Framed Representations
Coffee break
15:30 – 16:30 Talk 6.2: Pedro Souza (Goethe Universität): Symplectic Geometry and Double Quivers

Anabelian geometry - Mochizuki’s proof of the Hom-Conjecture [d’après Faltings]
2025-02-06 14:00 - 17:30 | Heidelberg
14:00 – 15:30 Talk 10: Tim Holzschuh (Universität Heidelberg): Proof of the Hom conjecture

Congruence Modules and the Wiles–Lenstra–Diamond Numerical Criterion in Higher Codimension
2025-02-07 09:00 - 11:00 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
Alireza Shavali (Universität Heidelberg): Modularity

Vector bundles on curves
2025-02-11 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Jon Miles (Goethe Universität Frankfurt): talk 12
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Moduli of Quiver Representations and GIT Quotients
2025-02-13 14:00 - 16:30 | Frankfurt, Rober-Mayer-Str. 10, Raum 711 klein
14:00 – 15:00 Talk 7.1: Rızacan Çiloğlu (TU Darmstadt): Nakajima Quiver Varieties
Coffee break
15:30 – 16:30 Talk 7.2: Martin Möller (Goethe Universität): Reincarnations of Quiver Moduli

Motivic Spectra
2025-04-14 10:15 - 11:45 | Mainz, Hilbertraum (05-432) and Zoom
Talk 1: Definition of motivic spectra (Andreas Gieringer)
Define elementary and smooth blowup excision [AHI25, Definition 2.1], and prove that Nisnevich-locally they agree [AHI25, Proposition 2.2]. Explain how to invert and object c in a presentable symmetric monoidal ∞-category C, i.e. explain [AI22, Proposition 1.3.14].
Note that in general, this is not given by the c-telescope colimPrL(C−⊗c −−→ C → . . . ). End the talk by giving the definition of MSS, as in the beginning of [AHI25, Section 4]. If time permits, explain the basic functoriality of MSS.

Categorical Deligne–Langlands correspondence
2025-04-22 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Yanik Kleibrink (TU Darmstadt): Talk 1* – Weil–Deligne representations
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Locally analytic vector bundles on the Fargues-Fontaine-Curve
2025-04-24 11:15 - 13:15 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
The adic Fargue-Fontaine curve
speaker: Max Witzelsperger (Heidelberg)

Berkovich motives
2025-04-24 13:00 - 13:30 | Darmstadt, Room 315 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Talk 0: Overview (15min) ( Alberto Merici)

Berkovich motives
2025-04-24 13:30 - 15:00 | Darmstadt, Room 315 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Talk 1: Motives (Christian Dahlhausen)

Berkovich motives
2025-04-24 15:30 - 16:30 | Darmstadt, Room 315 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Talk 2: Cancellation Theorem (75min) ( Alberto Merici)

D-elliptic sheaves and the Hasse principle
2025-04-25 09:00 - 11:00 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
Overview
Sriram Chinthalagiri Venkata (Heidelberg)
Begin by recalling Drinfeld’s theory of elliptic sheaves (or Shtukas) ([Mumford; Dri87]), andexplain briefly the importance of considering generalizations of them equipped with an action of D, namely D-elliptic sheaves. Then motivate and explain the main result in [Ara+24], by summarizing each talk of the seminar.

Motivic Spectra
2025-04-28 10:15 - 11:45 | Mainz, Hilbertraum (05-432) and Zoom
Talk 2: Thom-spaces (Timo Weiß)

Categorical Deligne–Langlands correspondence
2025-04-29 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Talk 2: Michelle Klemt: Spaces of L-parameters
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Gromov-Witten theory and real enumerative geometry
2025-04-30 14:15 - 17:00 | Frankfurt, Robert-Mayer-Str. 6-8, Raum 309
14:15 – 15:15 Talk 1: Andrei Bud (Universität Frankfurt): Real structures in low genus
15:45 – 16:45 Talk 2: Jeonghoon So (Universität Frankfurt): Counting coverings

D-elliptic sheaves and the Hasse principle
2025-05-02 09:00 - 11:00 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
Stacks I
speaker: Chia-Fu Yu (Academia Sinica, Taiwan)

Categorical Deligne–Langlands correspondence
2025-05-06 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Saskia Kern : Talk 3 – Derived categories of quasi-coherent sheaves
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Gromov-Witten theory and real enumerative geometry
2025-05-07 14:15 - 17:00 | Frankfurt, Robert-Mayer-Str. 6-8, Raum 309
14:15 – 15:15 Talk 3: Nicole Müller (Universität Frankfurt): Shifted Symmetric functions and quasimodular forms
15:45 – 16:45 Talk 4: Lukas Schneider (Universität Frankfurt): Quick start to M g,n and its intersection theory

Locally analytic vector bundles on the Fargues-Fontaine-Curve
2025-05-08 11:15 - 13:15 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
(Equivariant) vector bundles
speaker: Otmar Venjakob (Heidelberg)

Anabelian geometry - Daniel Litt "Arithmetic representations of fundamental groups II"
2025-05-08 14:00 - 17:30 | Heidelberg
14:00 – 15:15 Talk 0: Marius Leonhardt (Universität Heidelberg): Introduction
15:45 – 17:00 Talk 1: Benjamin Steklov (Universität Frankfurt): Deformation spaces

D-elliptic sheaves and the Hasse principle
2025-05-09 09:00 - 11:00 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
D-elliptic sheaves
speaker: Theresa Kaiser (Heidelberg)

Categorical Deligne–Langlands correspondence
2025-05-13 14:00 - 15:30 | Darmstadt, Room 401 and Zoom, Schlossgartenstraße 7, Darmstadt, 64289, Germany
Paul Siemon : Talk 4 – Self-duality of derived push forwards
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Gromov-Witten theory and real enumerative geometry
2025-05-14 14:15 - 17:00 | Frankfurt, Robert-Mayer-Str. 6-8, Raum 309
14:15 – 15:15 Talk 5: Moritz Frohwein (Universität Frankfurt): Cohomology of the moduli space of pointed rational curves
15:45 – 16:45 Talk 6.1: Miguel Prado (Universität Frankfurt): Moduli of stable maps I

Locally analytic vector bundles on the Fargues-Fontaine-Curve
2025-05-15 11:15 - 13:15 | Heidelberg, Mathematikon, SR 8 and Zoom, INF 205, Heidelberg, Germany
Comparison to (φ, Γ)-modules
Marvin Schneider (Heidelberg)

Berkovich motives
2025-05-15 13:00 - 14:30 | Heidelberg, MATHEMATIKON, SR 12, INF 205, Heidelberg, BW, 69124, Germany
Talk 3: Berkovich spaces (Katharina Hübner)
