Explore a 45-minute lecture on global solutions to quadratic systems of stochastic reaction-diffusion equations. Delve into the collaborative research of Julien Vovelle (CNRS & ENS Lyon) and Marta Leocata (LUISS, Roma) as they investigate stochastic perturbations in reaction-diffusion equation systems. Understand how the structure of noise is derived from modeling chemical reactions in a diffusive regime. Learn about the methods used to establish the existence of global solutions for four-species quadratic systems in two-dimensional space. Gain insights into this advanced topic in mathematical physics, presented at the Institut des Hautes Etudes Scientifiques (IHES).