Idisplays

This lunch is hosted by Prof. Dr. Anna Gusakova and Prof. Dr. Angela Stevens, and connects established female mathematicians with those who are at the beginning of their scientific careers. To register, please visit https://indico.uni-muenster.de/event/3364/

Origami is not only an art form but also a subject of mathematical interest, especially due to its geometric design. While traditional origami uses straight folds to create flat surfaces, paper can also be bent into curved, developable surfaces. Curved folding enables new modeling possibilities, though it has been less studied. This talk will introduce the speaker's work on curved folding, including artistic examples and design methods. It will also touch on origami's cultural and engineering aspects, and conclude with a hands-on curved folding workshop.

Further information

Join us to learn more about the career and work of Prof. Shirly Geffen. After the talk, there will be time to chat over a coffee together.

Abstract: We briefly review the tautological ring of the moduli space of surfaces, before discussing how to define the analogous ring for the moduli space of 3-dimensional handlebodies (and more generally, odd-dimensional manifolds with boundary). We then discuss some sheaf-theoretic methods of probing the structure of this ring. The talk is based on ongoing work that will (hopefully) appear in my PhD thesis this summer.

Abstract: The ?-category Cond(Ani) of condensed anima combines the homotopy-theoretic direction of anima with the topological space direction of condensed sets. For example, we can recover the shape of a sufficiently nice topological space from the corresponding condensed anima. My talk will focus on a joint refinement of the etale homotopy type and the pro-etale fundamental group of a scheme, realised as an object in Cond(Ani). This is closely related to work of Barwick, Glasman and Haine on exodromy. I will give an overview of results from my dissertation and an ongoing project jointly with Haine, Holzschuh, Lara and Wolf.

Abstract: Given a connected compact Lie group G and a degree 4 cohomology class of its classifying space, one obtains a central extension of the loop group LG by a procedure known as ?transgression?. K. Waldorf proved that this procedure is reversible if one remembers the ?fusion structure? on the central extension. In this talk, I will explain an analogue of Waldorf?s theorem in the context of algebraic geometry.