Department of Mathematics

Search

Algebraic geometry and moduli seminar

×

Modal title

Modal content

Please subscribe here if you would you like to be notified about these events via e-mail. Moreover you can also subscribe to the iCal/ics Calender.

Spring Semester 2025

Date / Time Speaker Title Location
22 January 2025
13:30-15:00 		Prof. Dr. Pierrick Bousseau
Univ. of Georgia
Details

Algebraic Geometry and Moduli Seminar

Title Non-toric brane webs, Calabi-Yau 3-folds, and 5d SCFTs
Speaker, Affiliation Prof. Dr. Pierrick Bousseau, Univ. of Georgia
Date, Time 22 January 2025, 13:30-15:00
Location HG G G43
Abstract One of the most remarkable predictions of string/M-theory is the existence of 5-dimensional superconformal field theories (5d SCFTs). There are two main approaches for constructing these 5d SCFTs, using either M-theory on canonical 3-fold singularities, or intersecting branes in Type IIB string theory. A natural question is to compare these two approaches. The answer is well-known for webs of 5-branes in Type IIB string theory, where the M-theory dual canonical 3-fold singularity is a toric Calabi–Yau 3-fold.  In this talk,  building on recent advances in mirror symmetry and enumerative geometry, I will provide an answer for the more general case of webs of 5-branes with 7-branes and explain how to construct the M-theory dual non-toric Calabi-Yau 3-fold. This is joint work with Valery Alexeev and Hulya Arguz.
Non-toric brane webs, Calabi-Yau 3-folds, and 5d SCFTsread_more
HG G G43
* 3 February 2025
17:30-19:00 		Prof. Dr. Davesh Maulik
MIT
Details

Algebraic Geometry and Moduli Seminar

Title D-equivalence conjecture for varieties of K3^[n]-type
Speaker, Affiliation Prof. Dr. Davesh Maulik, MIT
Date, Time 3 February 2025, 17:30-19:00
Location Zoom
Abstract The D-equivalence conjecture of Bondal and Orlov predicts that birational Calabi-Yau varieties have equivalent derived categories of coherent sheaves.  I will explain how to prove this conjecture for hyperkahler varieties of K3^[n] type (i.e. those that are deformation equivalent to Hilbert schemes of K3 surfaces).  This is joint work with Junliang Shen, Qizheng Yin, and Ruxuan Zhang.
D-equivalence conjecture for varieties of K3^[n]-typeread_more
Zoom
* 5 February 2025
13:15-14:45 		Prof. Dr. Yongbin Ruan
Zhejiang Univeristy and ETH-ITS
Details

Algebraic Geometry and Moduli Seminar

Title Current work and open questions
Speaker, Affiliation Prof. Dr. Yongbin Ruan, Zhejiang Univeristy and ETH-ITS
Date, Time 5 February 2025, 13:15-14:45
Location SEW
Current work and open questions
SEW
7 February 2025
16:00-17:30 		Dr. Kento Osuga
Univ. of Tokyo
Details

Algebraic Geometry and Moduli Seminar

Title Volumes of moduli spaces of bordered Klein surfaces
Speaker, Affiliation Dr. Kento Osuga, Univ. of Tokyo
Date, Time 7 February 2025, 16:00-17:30
Location HG G G43
Abstract Weil–Petersson volumes are fascinating objects. They are defined as volumes of moduli spaces of oriented hyperbolic surfaces, and they satisfy the so-called Mirzakhani's recursion. The goal of this talk is to discuss a non-orientable analogue of Weil–Petersson volumes as well as their recursive structure. I will show how volumes are defined, compute the volume of hyperbolic Klein bottles, and most importantly, explore a possible relation to other objects in mathematics such as the Virasoro algebra and topological recursion. This talk is based on a joint work with Elba Garcia-Failde and Paolo Gregori.
Volumes of moduli spaces of bordered Klein surfacesread_more
HG G G43
19 February 2025
13:30-15:00 		Aitor Iribar López
ETH Zürich
Details

Algebraic Geometry and Moduli Seminar

Title Complex abelian varieties and their moduli IX
Speaker, Affiliation Aitor Iribar López, ETH Zürich
Date, Time 19 February 2025, 13:30-15:00
Location HG G 43
Abstract Intersection theory on A_g and on Mumford's partial compactification
Complex abelian varieties and their moduli IXread_more
HG G 43
26 February 2025
13:30-15:00 		Dr. Johannes Schmitt
ETH Zürich
Details

Algebraic Geometry and Moduli Seminar

Title Complex abelian varieties and their moduli X
Speaker, Affiliation Dr. Johannes Schmitt, ETH Zürich
Date, Time 26 February 2025, 13:30-15:00
Location HG G 43
Abstract Piecewise polynomials and Chow rings
Complex abelian varieties and their moduli Xread_more
HG G 43
28 February 2025
16:00-17:30 		Dr. Qaasim Shafi
Universität Heidelberg
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Dr. Qaasim Shafi, Universität Heidelberg
Date, Time 28 February 2025, 16:00-17:30
Location HG G 43
Title T.B.A.
HG G 43
* 5 March 2025
16:00-17:30 		Prof. Dr. Aaron Pixton
University of Michigan
Details

Algebraic Geometry and Moduli Seminar

Title The lambda_g formula
Speaker, Affiliation Prof. Dr. Aaron Pixton, University of Michigan
Date, Time 5 March 2025, 16:00-17:30
Location Zoom
The lambda_g formula
Zoom
7 March 2025
16:00-17:30 		Dr. Michele Graffeo
SISSA
Details

Algebraic Geometry and Moduli Seminar

Title The motive of the Hilbert scheme of points
Speaker, Affiliation Dr. Michele Graffeo, SISSA
Date, Time 7 March 2025, 16:00-17:30
Location HG G 43
Abstract The Hilbert scheme of points on a quasi-projective variety is a classical object in algebraic geometry. However, its geometry is nowadays still not completely accessible. On the other hand, the motive of a variety X is an invariant attached to X carrying a lot of information about its geometry, and it is considered as a universal Euler characteristic. In a joint project with Monavari, Moschetti and Ricolfi we give general formulas to compute the motive of the Hilbert scheme of points, provided the knowledge of a finite amount of data (that we gave explicitly in some cases). In my seminar I will present our formulas and I will show many applications.
The motive of the Hilbert scheme of pointsread_more
HG G 43
12 March 2025
13:30-15:00 		Prof. Dr. Gavril Farkas
Humboldt Universität zu Berlin
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Prof. Dr. Gavril Farkas, Humboldt Universität zu Berlin
Date, Time 12 March 2025, 13:30-15:00
Location HG G 43
Title T.B.A.
HG G 43
21 March 2025
16:00-17:30 		Prof. Dr. Hsian-Hua Tseng
Ohio State University
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Prof. Dr. Hsian-Hua Tseng, Ohio State University
Date, Time 21 March 2025, 16:00-17:30
Location HG G 43
Title T.B.A.
HG G 43
28 March 2025
16:00-17:30 		Dr. Calla Tschanz
Ruhr Universität Bochum
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Dr. Calla Tschanz, Ruhr Universität Bochum
Date, Time 28 March 2025, 16:00-17:30
Location HG G 43
Title T.B.A.
HG G 43
11 April 2025
16:00-17:30 		Terry Song
Cambridge University
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Terry Song, Cambridge University
Date, Time 11 April 2025, 16:00-17:30
Location HG G 43
Title T.B.A.
HG G 43
30 April 2025
13:30-15:00 		Prof. Dr. Michel van Garrel
University of Birmingham
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Prof. Dr. Michel van Garrel, University of Birmingham
Date, Time 30 April 2025, 13:30-15:00
Location HG G 43
Title T.B.A.
HG G 43
16 May 2025
16:00-17:30 		Dr. Henry Liu
Kavli IPMU (Tokyo)
Details

Algebraic Geometry and Moduli Seminar

Title Title T.B.A.
Speaker, Affiliation Dr. Henry Liu, Kavli IPMU (Tokyo)
Date, Time 16 May 2025, 16:00-17:30
Location HG G 43
Title T.B.A.
HG G 43

Notes: the highlighted event marks the next occurring event, red marked events are important and events marked with an asterisk (*) indicate that the time and/or location are different from the usual time and/or location.

Archive: SS 25 AS 24 SS 24 AS 23 SS 23 AS 22 SS 22 AS 21 SS 21 AS 20 SS 20 AS 19 SS 19 AS 18 SS 18 AS 17 SS 17 AS 16 SS 16 AS 15 SS 15 AS 14 SS 14 AS 13 SS 13 AS 12 SS 12 AS 11

JavaScript has been disabled in your browser