Évènements

J’introduirai rapidement le processus de contact ainsi que les problèmes qui nous intéresserons à  son sujet. Je discuterai des difficultés qui apparaissent lors de son étude sur un graphe non-régulier et j’essaierai de montrer comment, pour le graphe Booléen, on peut les contourner à  l’aide des propriétés démontrées dans l’exposé précédent.

To unveil the nature of 95% of the Universe, missions such as Euclid aim at reaching a few percent precision. In
this quest for precision, tensions between the standard cosmological model and observations already arise: local and global H0
measurements are incompatible at more than 3σ, anomalies emerge within the CMB, etc. These tensions suggest that we should perhaps not be so quickly inclined to disregard our observational site as a bias factor: Accuracy
is not Precision. Few percent precision and local-induced biases are of the same order of magnitude. A precise
mapping of the local distribution of matter is essential to properly account for these biases. Simulations constrained to resemble the local Universe constitute the tool of choice for such a mapping. I will summarize the genesis of the initial conditions of such simulations as well as present a few results that promise to tremendously impact our understanding of the local-induced biases that will matter in future analyses. Eventually, I will present the initial conditions of the
GMO-CLONES (GMO-Constrained LOcal & Nesting Environment Simulation) suite to reach an Accurate Precision Cosmology.

https://dev-iecl.univ-lorraine.fr/Les-Seminaires/Theorie-Des-Nombres/wolfcms/seminaire.html