AFRIMath 2025

The AFRIMath 2025 conference will take place in Abidjan, Ivory Coast, from March 31 to April 4, 2025.
The conference will cover the following three themes:
• Probability – Statistics
• Analysis
• Discrete dynamic systems, combinatorics

The morning will be devoted to non-specialized presentations, accessible to participants in all three conference themes. Parallel sessions, one for each theme, will be held in the afternoon. Wednesday morning will be devoted to a presentation of mathematics-business links and/or publications. A cultural visit will be offered on Wednesday afternoon. Wherever possible, presentations will be broadcast by videoconference for participants unable to attend.

Scientific program

Each of the three major themes of the conference is detailed below. Public presentations on topics outside the three main themes will also be offered.

Discrete dynamical systems, combinatorics

Main organizers: Nicolas Bédaride (Orleans University), Idrissa Kaboré (Burkina Faso)

In mathematics, a dynamical system is a system in which a function describes the time dependence of a point in an ambient space, such as in a parametric curve. For example it includes the mathematical models that describe the swinging of a clock pendulum. The most general definition unifies several concepts in mathematics such as ordinary differential equations and ergodic theory by allowing different choices of the space and how time is measured. Time can be measured by integers, by real or complex numbers. For integers we speak of discrete dynamical systems.

In many areas of dynamics and geometry, the ideas of renormalization and self-similarity play a crucial role. These ideas involve rescaling dynamical or geometric phenomenon to observe behaviors at multiple scales. For example see the recent papers in the case of interval exchange maps, or for Teichmuller theory. These ideas also appear in the study of tilings.

In this workshop we focus on ergodic and combinatorics properties of dynamical systems of different natures. We will consider the study of billiard inside polygons or polyhedrons. We will also look at numeration systems, one course will concern problems coming from combinatorics on words, and one from topology and geometry.
Each afternoon there will be two talks of one hour, one coffee break and one session of exercices or open problemsfor one hour. We will keep a lot of times for free discussions.

List of courses

  • Combinatorics on words: general and application (Julien Cassaigne, Idrissa Kaboré)

  • Dynamical systems: example of billiard (Nicolas Bédaride, Moussa Barro)

  • Numeration (Emilie Charlier)

  • Topology and dynamics (Jérome Los, Siriki Yarrasouba)

Speakers

  • Moussa Barro (Burkina Faso)
  • Nicolas Bédaride (Orleans University)
  • Julien Cassaigne (Orleans University)
  • Emilie Charlier (Belgium)
  • Idrissa Kaboré (Burkina Faso)
  • Jérome Los (Orleans University)
  • Siriki Yarrasouba (Côte d'Ivoire)

Probability and statistics

Main organizers: Jean-François Dupuy (Orleans University), Ouagnina Hili (Côte d'Ivoire), Etienne Pardoux (Orleans University), Ténan Yeo (Côte d'Ivoire), El Hadji Deme (Senegal)

In mathematics, probability and statistics offer powerful tools for modeling time and/or space-dependent phenomena, such as the propagation of diseases and epidemics, the dynam- ics of halieutic resources, the occurrence of extreme and catastrophic events (e.g., flooding, extreme rainfalls. . . ). These models are now used - to assess and manage risks - in a wide range of industries, companies and public administrations. Their dissemination was made possible by the availability of powerful and user-friendly softwares. In this workshop, we will focus on the most up-to-date probabilistic and statistical models for time and/or space- dependent phenomena, motivated by real-world problems in the fields of epidemiology, risk management, insurance, fisheries. Organization.

There will be two plenary morning talks, given by recognized experts in their field. These talks will be accessible to a large mathematical audience (i.e., to specialists and non spe- cialists of probability and statistics). There will be 4 thematic afternoons, organized around lectures and exercises sessions (including practical sessions on the free software environment for statistical computing R). They will allow participants to get a greater understanding of the mathematical foundations underlying the methods and models described in the morning sessions. Exercises and computer lab sessions will be organized.

List of courses

  • An introduction to stochastic partial differential equations (SPDEs) (Antoine Marie Bogso)

  • Branching processes and applications (Ibrahima Dramé)

  • Statistical modeling of extreme and rare events with application to climate change (El Hadji Deme)

Speakers

  • Antoine Marie Bogso (Cameroun)
  • Ibrahima Dramé (Senegal)
  • Jean-François Dupuy (Orleans University)
  • Yao Armand Kanga (Côte d'Ivoire)
  • Serge-Hippolyte Arnaud Kanga (Côte d'Ivoire)
  • Geoffroy Kouakou (Côte d'Ivoire)
  • Anicet Mougabe (Côte d'Ivoire)
  • Etienne Pardoux (Orleans University)
  • Ténan Yeo (Côte d'Ivoire)

Analysis

Main organizers: Christophe Berthon (Orleans University), Justin FEUTO (Côte d'Ivoire)

This event will bring together experts in PDE analysis, harmonic analysis and numerical analysis to present recent results obtained by the relevant community to an audience made up of experienced researchers as well as young researchers and PhD students. The event will be structured around a 6-hour lecture dedicated to the analysis of kinetic models for the modeling of fluids made up of self-propelled particles. Two plenary lectures will be devoted to numerical analysis problems for elliptic and parabolic equations, and to new results in real and complex harmonic analysis and their applications. Six invited speakers are also expected to present their results in PDE analysis, harmonic analysis, Fourier analysis, complex analysis and control. Several presentations will be given by young researchers or doctoral students.

List of courses

  • Analysis of kinetic models for modeling fluids made up of self-propelled particles (Sandrine Grellier)

  • Introduction à la parcimonie dans les problèmes inverses linéaires. (Laurent Baratchart)

Speakers

  • Laurent Baratchart (Orleans University)
  • Eliane Raîssa Fankem (Senegal)
  • Philippe Jaming (Orleans University)
  • Sanogo Moumine (Mali)
  • Fadipe-Joseph Olubunmi Abidem (Orleans University)
  • Benoît Sehba (Ghana)
  • Ousmane Seydi (Senegal)
  • Joëlle Tachago (Cameroun)

AFRIMATH 2025
Conference

Schedule

Hourly Monday
March 31, 2025 		Tuesday
April 01, 2025 		Wednesday
April 02, 2025 		Thursday
April 03, 2025 		Friday
April 04, 2025
9:30 - 10:30 ouverture de la conférence Philippe Jaming Table ronde : Femme et Maths Emilie Charlier Ibrahima Dramé
10:30 - 11:00 Coffee break Coffee break Coffee break Coffee break Coffee break
11:00 - 12:00 Jean-François Dupuy Idrissa Kaboré Table ronde : Femme et Maths Laurent Baratchart Lecture
12:00 - 13:30 Lunch Lunch Lunch Lunch Lunch
13:30 - 14:30 sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) Quartier libre sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique)
14:30 - 15:30 sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) Quartier libre sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique)
15:30 - 16:00 Coffee break Coffee break Quartier libre Coffee break Coffee break
16:00 - 17:00 sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) Quartier libre sessions parallèle(Analyse/Proba-Stat/Syst Dynamique) sessions parallèle(Analyse/Proba-Stat/Syst Dynamique)
19:00 - 21:00 N/A N/A Diner N/A N/A

Nos
Partenaire

International Mathematical Union
European Mathematical Society
The Jean Leray Mathematics Laboratory
Nantes University
CNRS
Institute of Mathematics of Marseille

Contacts

Adresse
Felix Houphouet-Boigny University
Phone
+225 07 7878 88 88
Email
contact@afrimath2025.org