Workshop "Time-scale and time-frequency analysis"

18-19 April 2024

Vrije Universiteit Brussel (VUB)

General information

The workshop "Time-scale and time-frequency analysis" will take place on 18-19 April at Vrije Universiteit Brussels (VUB). This workshop is in honor of the Francqui chair 2023-2024 of Professor Stéphane Jaffard (Paris-East Créteil University) at the Department of Mathematics and Data Science at VUB.

The workshop is free of charge. Please contact andreas.debrouwere@vub.be if you would like to participate.

Speakers

Beatrice Andreolli (University of Vienna)
Francesca Bartolucci (Delft University of Technology)
Céline Esser (University of Liège)
Philippe Jaming (University of Bordeaux)
Stéphane Seuret (Paris-East Créteil University)
Jasson Vindas (Ghent University)

Francqcui chair mini-course

In the context of his Francqui chair, Professor Jaffard will give a mini-course entitled "Time-scale and time-frequency methods in the study of singularities of functions" at VUB from 16-19 April. This mini-course consists of four lectures and is intended for graduate students, Ph.D. students, and researchers interested in theoretical and applied harmonic analysis. More information on the mini-course can be found here. On 18-19 April the last two lectures of the mini-course will take place in the mornings and the the workshop in the afternoon (see also the schedule below). It will be able to follow the last two lectures without having attended the first two.

The mini-course is free of charge. Please contact andreas.debrouwere@vub.be if you would like to participate.

Accomodation

A hotel very close to the VUB campus is the Aparthotel Adagio Access Brussels Delta. The university has an arrangement with this hotel. To use a reduced fee, a booking request has to be made by e-mail. Please mention that you will be participating in a workshop at VUB and that you would like use the VUB-corporate rates.

Schedule

All lectures will take place in building G at VUB Main campus Etterbeek (Pleinlaan 2, 1050 Brussels).

Thursday 18 April

10:00-12:00, room: G.1.53
S. Jaffard, Wavelet characterizations of pointwise singularities (lecture 3 of the mini-course)

12:00-13:30
Lunch break

13:30-14:30, room: G.1.56
C. Esser, Regularity of Weighted tensorized fractional Brownian textures
Abstract

14:30-15:30, room: G.1.56
S. Seuret, Besov spaces in multifractal environment and the Frisch-Parisi conjecture
Abstract

15:30-16:00
Coffee break

16:00-17:00, room: G.1.56
B. Andreolli, Variable bandwidth via Wilson bases
Abstract

17:00-18:00, room: G.1.56
J. Vindas, Spaces of functions with nearly optimal time-frequency decay
Abstract

19:00
Dinner (more information will be provided later)

Friday 19 April

10:00-12:00, room: G.1.57
S. Jaffard, Multivariate multifractal analysis for the detection of chirps and oscillating singularities (lecture 4 of the mini-course)

12:00-13:30
Lunch break

13:30-14:30, room: G.6.52
F. Bartolucci, A Tour in Wavelet Phase Retrieval
Abstract

14:30-15:30, room: G.6.52
P. Jaming, Lower bounds of L1-norms of non-harmonic trigonometric polynomials
Abstract