# Past events – University of Copenhagen

Symmetry and Deformation > Calendar > Past events

# Past events

Events at the Centre for Symmetri and Deformation.

Search for certain years in the panel below.

## Search events

 All events café debatmøde disputatsforsvar event familieaktivitet fest festival foredrag forelæsning gå-hjem-møde informationsmøde konference konkurrence kulturnatten match-making oplæg ph.d.-forsvar rundvisning seminar sommerskole specialeforsvar specialeseminar symposium tiltrædelsesforelæsning udstilling webinar workshop From To

• 11 August 2017, 09:00-09:55

## YMC*A Mini-Course by Yu IV

Mini-course by Guoliang Yu (Texas A&M): Secondary invariants of elliptic operators

• 11 August 2017, 13:30-14:25

## YMC*A Mini-Course by Juschenko IV

Mini-course by Kate Juschenko (Northwestern): Amenability of discrete groups

• 10 August 2017, 13:30-14:25

## YMC*A Mini-Course by Juschenko III

Mini-course by Kate Juschenko (Northwestern): Amenability of discrete groups

• 9 August 2017, 13:30-14:25

## YMC*A Mini-Course by Yu III

Mini-course by Guoliang Yu (Texas A&M): Secondary invariants of elliptic operators

• 9 August 2017, 09:00-09:55

## YMC*A Mini-Course by Juschenko II

Mini-course by Kate Juschenko (Northwestern): Amenability of discrete groups

• 8 August 2017, 09:00-09:55

## YMC*A Mini-Course by Yu II

Mini-course by Guoliang Yu (Texas A&M): Secondary invariants of elliptic operators

• 7 August 2017, 13:30-14:25

## YMC*A Mini-Course by Yu I

Mini-course by Guoliang Yu (Texas A&M): Secondary invariants of elliptic operators

• 7 August 2017, 09:00-09:55

## YMC*A Mini-Course by Juschenko I

Mini-course by Kate Juschenko (Northwestern): Amenability of discrete groups

• 7 August - 11 August 2017

## Young Mathematicians in C*-Algebras 2017

The conference will feature mini-courses by Kate Juschenko (Northwestern) and Guoliang Yu (Texas A&M) alongside many contributed talks by participants.

• 6 August 2017, 11:00-12:00

## YWC*A Colloquium

Colloquium by Claire Anantharaman-Delaroche (Orléans). Title: A brief history of type $II_1$ factors

• 6 August 2017, 09:00-10:00

## YWC*A Mini-Course II

Mini-course by Magdalena Musat (Copenhagen). Lecture II: Grothendieck's inequalities---from classical to noncommutative

• 5 August 2017, 09:30-10:30

## YWC*A Mini-Course I

Mini-course by Magdalena Musat (Copenhagen). Lecture I: Classical and quantum correlations, tensor norms, and an asymptotic behaviour of quantum channels

• 5 August - 6 August 2017

## Young Women in C*-Algebras

A mini-workshop in the weekend leading up to the Young Mathematicians in C*-Algebras conference where all women participating in the YMC*A are invited to speak.

• 28 July 2017, 14:15-15:00

## A note on the Miščenko bundle

Seminar talk by Valerio Proietti.

• 30 June 2017, 15:15

## PhD Defense Matias Lolk

Title: Algebras and dynamical systems associated with separated graphs

• 26 June 2017, 15:15-16:15

## Algebra/Topology Seminar by Arthur Soulie

Talk by Arthur Soulie (University of Strasbourg) Title: Action of the Long-Moody Construction on Polynomial FunctorsAbstract: In 2015, Randal-Williams and Wahl proved homological stability with certain twisted coefficients for dif- ferent families of groups, in particular the one of braid groups. In fact, they obtain the stability for coefficients given by functors satisfying polynomial conditions. We only know few examples of such functors. Among them, we have the functor given by the unreduced Burau representations. In 1994, Long and Moody gave a construction on representations of braid groups which associates a representation of Bn with a representation of Bn+1. This construction complexifies in a sense the initial representation: for instance, starting from a dimension one representation, one obtains the unreduced Burau representation. In this talk, I will present this construction from a functorial point of view. I will explain that the construction of Long and Moody defines an endofunctor, called the Long-Moody functor, between a suitable category of functors. Then, after defining strong polynomial functors in this context, I will prove that the Long-Moody functor increases by one the degree of strong polynomiality of a strong polynomial functor. Thus, the Long-Moody construction will provide new examples of twisted coefficients corresponding to the framework of Randal-Williams and Wahl.

• 26 June - 30 June 2017

## Stable Homotopy Theory and p-adic Hodge Theory

Masterclass with Matthew Morrow (Jussieu-Paris) and Thomas Nikolaus (MPI Bonn).

• 23 June 2017, 13:15

## Homological Identities for Differential Graded Algebras

Specialeforsvar ved Anne Gregersen

• 19 June 2017, 15:15-16:15

## Algebra/Topology Seminar by Alexander Kupers

Talk by Alexander Kupers (Copenhagen University) Title: Diffeomorphisms of disks Abstract: Disks are arguably the most basic manifolds. I will explain what is known about their diffeomorphisms groups in dimension at least 5, and discuss recent progress in understanding their rational homotopy groups. In particular, I will explain why these are degreewise finitely-generated when n is not 4, 5 or 7.

• 16 June 2017, 14:30-15:30

## Science communication for mathematicians

Talk by Ionica Smeets (Leiden University)

• 15 June 2017, 13:15-14:15

## Number Theory Seminar

Ariyan Javanpeykar (Mainz) will speak about Arithmetic, algebraic, and analytic hyperbolicity.

• 14 June 2017, 15:15

## Joint operator algebras & algebra/topology seminar

Seminar talk by Sarah Browne (University of Sheffield) on An orthogonal quasi-spectrum for graded E-theory.

• 13 June 2017, 15:15-16:15

## Harald Bohr Lecture: Peter Sarnak

Peter Sarnak, Professor at Princeton University & the Institute for Advanced Study, will talk about "Navigating U(2) with Golden Gates"

• 12 June 2017, 15:15-16:15

## Algebra/Topology Seminar by Philip Tosteson

Title: Stability for Singular Configuration Spaces

• 7 June 2017, 15:15

## Operator algebras seminar

Seminar talk by Claire Debord (Clermont-Ferrand) on Blowup and deformation groupoids related to index problems.