Session régionale du séminaire des doctorantes

Liste des Contributions

8. Femmes et Mathématiques : une comparaison transnationale des carrières universitaires en France et au Kazakhstan

Zhanna Karimova (Centre Max Weber)

28/11/2025 13:30

Cette communication propose une analyse comparative des carrières universitaires en mathématiques en France et au Kazakhstan sous l’angle du genre. Dans les deux pays, les jeunes filles réussissent mieux que les garçons dans les disciplines scientifiques et poursuivent des études plus longues. Pourtant, elles restent minoritaires dans les filières universitaires de mathématiques et voient leur...

1. Caractérisation algébrique des horomorphismes

Patrick Salhany

28/11/2025 14:30

TBA

6. Følner sequences without group actions

Luca Froger

28/11/2025 14:30

Amenable groups have historically been introduced as a response to the Banach-Tarski paradox, which states that one can separate a ball in a disjoint union of subsets, rotate said subsets around and obtain two copies of the original ball. I will present this notion in this classical framework, and more precisely a common strategy to prove amenability: finding Følner sequences. This will lead...

3. Concentration in selection-mutation models: error estimates and asymptotic expansions

Caroline Guinet

28/11/2025 15:05

TBA

4. The extremal process of two-speed branching random walk

Lianghui Luo

28/11/2025 15:05

We consider a two-speed branching random walk, which consists of two macroscopic stages with different reproduction laws. We prove that the centered maximum converges in law to a Gumbel variable with a random shift and the extremal process converges in law to a randomly shifted decorated Poisson point process, which can be viewed as a discrete analog for the corresponding results for the...

5. Motivation to K-theory of C* algebras via Atiyah Singer theorem and Fredholm operators

Florian Thiry

28/11/2025 16:00

This talk will be structured as follows: the first will be quite historical, talking about operators on a Hilbert space, Fredholm operators, indices.. In the second one, we introduce the C* algebraic K-theory framework and we relate it to the problem of Fredholm indices computation. If we have enough time, we look at a specific example illustrating which kind of link is arised by Atiyah Singer theorem.

9. Quantification of limit theorem for nearly unstable Hawkes process

Benjamin Massat

28/11/2025 16:00

2. Image-based multi-scale plant species monitoring: evaluating the impact of land management changes on biodiversity

Théo Larcher

28/11/2025 16:35

Thanks to modern data infrastructures, large amounts of images describing vegetation are available at multiple scales: at the individual scale (e.g., Pl@ntNet images), at the landscape scale (e.g., LUCAS images), and at the ecosystem scale (e.g., Sentinel 2 data). Usually, these different types of visual content are processed separately. Images of individual plants are typically used to train...

7. Univariate Stochastic Modeling of Rainfall Extremes in Montpellier

Anne Bernard

28/11/2025 16:35

Flood risk is particularly high in urban areas due to soil impermeability, which prevents water absorption. Flooding can occur after periods of intense rainfall or during prolonged episodes of moderate rain. This is especially true in Montpellier, where heavy precipitation events frequently result in urban flooding. Modeling heavy rainfall and dry periods is essential to prevent urban...

10. Session Poster + Goûter

28/11/2025 17:10