Huong Vu Thi
I would like to thank the French National Centre for
Scientific Research (CNRS) and the Burgundy Institute of Mathematics (IMB), University
of Burgundy, for their  financial support and hospitality during my research stay at IMB from 2-09-2023 to 29-11-2023,
through the program Postes Rouges CNRS 2023.
Huong Vu Thi
Stay in University of Bourgogne from 2-09-2023 to 29-11-2023: