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Autumn Semester 2026

Date / Time Speaker Title Location
* 18 September 2026
16:15-17:15 		Natasha Diederen
UCL
Details

Geometry Graduate Colloquium

Title Oriented integral varifolds with curvature and boundary
Speaker, Affiliation Natasha Diederen, UCL
Date, Time 18 September 2026, 16:15-17:15
Location HG G 19.2
Abstract A varifold is a generalisation of a surface well-suited to addressing geometric variational problems. After reviewing some preliminary results and examples, we will introduce a class of varifolds that have a weak notion of orientation and second fundamental form. We will then demonstrate the utility of this class in proving the existence of minimisers to the Canham-Helfrich energy, a curvature-dependent energy that models the shape of cell membranes. Time permitting, we will discuss the development of a boundary operator for oriented varifolds as a way to address the multi-phase Canham-Helfrich problem. This is joint work in progress with C. Bellettini.
Oriented integral varifolds with curvature and boundaryread_more
HG G 19.2
24 September 2026
16:15-17:15 		Jonah Mendel
Rice University
Details

Geometry Graduate Colloquium

Title Constructions of arithmetic groups acting on products of trees
Speaker, Affiliation Jonah Mendel, Rice University
Date, Time 24 September 2026, 16:15-17:15
Location HG E 41
Constructions of arithmetic groups acting on products of trees
HG E 41
* 8 October 2026
16:00-17:00
Details

Geometry Graduate Colloquium

Title Paul Bernays lecture - Akshay Venkatesh
Speaker, Affiliation
Date, Time 8 October 2026, 16:00-17:00
Location
More information https://math.ethz.ch/news-and-events/events/lecture-series/paul-bernays-lectures.html
Paul Bernays lecture - Akshay Venkateshread_more
15 October 2026
16:15-17:15 		Ilayda Demir
Paris Cité and Sorbonne
Details

Geometry Graduate Colloquium

Title Khovanov homology and the Rasmussen invariant
Speaker, Affiliation Ilayda Demir, Paris Cité and Sorbonne
Date, Time 15 October 2026, 16:15-17:15
Location HG E 41
Khovanov homology and the Rasmussen invariant
HG E 41
22 October 2026
16:15-17:15 		Ibrahim Trifa
ETH Zurich, Switzerland
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Ibrahim Trifa, ETH Zurich, Switzerland
Date, Time 22 October 2026, 16:15-17:15
Location HG E 41
Title T.B.A.
HG E 41
29 October 2026
16:15-17:15 		Lily Natasha Wartman
Rice University
Details

Geometry Graduate Colloquium

Title Hyperbolic structures on alternating link compliments
Speaker, Affiliation Lily Natasha Wartman, Rice University
Date, Time 29 October 2026, 16:15-17:15
Location HG E 41
Hyperbolic structures on alternating link compliments
HG E 41
5 November 2026
16:15-17:15 		David Lenze
Karlsruhe Institute of Technology
Details

Geometry Graduate Colloquium

Title Rigidity of Wasserstein Spaces
Speaker, Affiliation David Lenze, Karlsruhe Institute of Technology
Date, Time 5 November 2026, 16:15-17:15
Location HG E 41
Rigidity of Wasserstein Spaces
HG E 41
12 November 2026
16:15-17:15 		Beatrice Bernasconi
ETH Zurich, Switzerland
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Beatrice Bernasconi, ETH Zurich, Switzerland
Date, Time 12 November 2026, 16:15-17:15
Location HG E 41
Title T.B.A.
HG E 41
19 November 2026
16:15-17:15 		Ekaterina Kuritsina
Université Paris-Est Créteil
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Ekaterina Kuritsina, Université Paris-Est Créteil
Date, Time 19 November 2026, 16:15-17:15
Location HG E 41
Title T.B.A.
HG E 41
26 November 2026
16:15-17:15 		Aviv Taller
EPFL
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Aviv Taller, EPFL
Date, Time 26 November 2026, 16:15-17:15
Location HG E 41
Title T.B.A.
HG E 41
3 December 2026
16:15-17:15 		Jessica Anzanello
University of Milan
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Jessica Anzanello, University of Milan
Date, Time 3 December 2026, 16:15-17:15
Location
Title T.B.A.
10 December 2026
16:15-17:15 		Dr. Viola Giovannini
ETH Zurich, Switzerland
Details

Geometry Graduate Colloquium

Title Title T.B.A.
Speaker, Affiliation Dr. Viola Giovannini, ETH Zurich, Switzerland
Date, Time 10 December 2026, 16:15-17:15
Location HG E 41
Title T.B.A.
HG E 41

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