## Math Calendar

Monday, September 25, 2017

11:00-11:45

HFG 610

Stochastics Seminar

Pieter Trapman (Stockholm) - End of an SIR epidemic on a configuration model network

see description

Abstract: We consider an SIR (Susceptible-Infective-Recovered) epidemic on a static (configuration model) random graph. We describe the final stages of the epidemic and analyse the time until extinction of the epidemic. Furthermore, we consider the effect of control measures, such as vaccination on the duration of the epidemic. The analysis heavily relies on theory on branching processes.

We show that the epidemic is always exponentially declining in the final stages, even if the degree distribution of the network has infinite variance. We also show that control measures, although decreasing the size of the epidemic, might well increase the duration of the epidemic, which might have serious public health and economic implications.

Joint work with Ana Serafimovic and Abid Ali Lashari

We show that the epidemic is always exponentially declining in the final stages, even if the degree distribution of the network has infinite variance. We also show that control measures, although decreasing the size of the epidemic, might well increase the duration of the epidemic, which might have serious public health and economic implications.

Joint work with Ana Serafimovic and Abid Ali Lashari

Tuesday, September 26, 2017

16:00-17:00

HFG610

Seminar Geometry and Analysis

Emmanuel Opshtein (IRMA Strasbourg) - C^0 rigidity of Lagrangian submanifolds

see description

Classical symplectic geometry deals with those applications that preserve a differential structures given by a certain 2-form. Eliashberg-Gromov discovered however that a diffeomorphism that is a C^0-limit of symplectic diffeomorphisms is itself symplectic. As a result, the C^0-closure of the symplectic group in the Homeomorphism group of a manifold gives an interesting object. We are led to a natural question: which objects are of interest in this "C^0-symplectic geometry" ? In this talk, I will discuss the relevance of Lagrangian submanifolds (which are the most famous objects in classical symplectic geometry) in this C^0-symplectic geometry. We will see that these submanifolds enjoy very strong robustness with respect to these C^0-limits.

Thursday, September 28, 2017

16:00-17:00

HFG 611

Friday, September 29, 2017

11:00-12:00

BBG 175

12:00-13:00

BBG 175

Tuesday, October 3, 2017

Tuesday, October 10, 2017

16:00-17:00

HFG610

Seminar Geometry and Analysis - Andres Pedroza (Universidad de Colima)

Lagrangian submanifolds in the one-point blow up of CP^2

see description

We will show how a Lagrangian submanifold in CP^2 that is Hamiltonian isotopic to RP^2, lifts to a Lagrangian submanifold in the symplectic one-point blow up of CP^2 such that is no longer Hamiltonian isotopic to the lift of RP^2. We show this by computing the Lagrangian Floer homology of the pair of Lagrangian submanifolds in the symplectic blow up in terms of the Lagrangian Floer homology of the pair in CP^2.

Thursday, October 12, 2017

16:00-17:00

HFG 611

Monday, October 16, 2017

16:15-17:15

Academiegebouw

Tuesday, October 17, 2017

Thursday, October 19, 2017

14:00-17:45

HFG611

Friday, October 20, 2017

09:45-16:45

HFG611

Tuesday, October 24, 2017

16:00-17:00

HFG610

Tuesday, October 31, 2017

16:00-17:00

HFG 611

Thursday, November 2, 2017

15:30-16:30

KBG Cosmos

Tuesday, November 7, 2017

16:00-17:00

HFG610

Thursday, November 9, 2017

16:00-17:00

HFG 611

Tuesday, November 14, 2017

13:15-14:00

HFG

16:00-17:00

HFG 610

Thursday, November 16, 2017

15:30-16:30

location: Ruppert Paars

Tuesday, November 21, 2017

16:00-17:00

HFG 610

Tuesday, November 28, 2017

16:00-17:00

HFG 610

Thursday, November 30, 2017

16:00-17:00

HFG 611

Tuesday, December 5, 2017

Tuesday, December 12, 2017

Thursday, December 14, 2017

16:00-17:00

HFG 611

Tuesday, December 19, 2017

Tuesday, December 26, 2017

Tuesday, January 2, 2018

Tuesday, January 9, 2018

Tuesday, January 16, 2018

Tuesday, January 23, 2018

Thursday, January 25, 2018

16:00-17:00

HFG 611

Tuesday, January 30, 2018

Tuesday, February 6, 2018

Tuesday, February 13, 2018

Tuesday, February 20, 2018

Tuesday, February 27, 2018

Tuesday, March 6, 2018

Tuesday, March 13, 2018

Tuesday, March 20, 2018