Large-time behavior of solutions to the compressible non-isentropic Euler–Maxwell system in R3R3

We first refine the global existence of solutions by assuming that the initial data is small in the H3H3 norm but the higher order derivatives could be large. If further the initial data belongs to Ḣ−s (0≤s<3/20≤s<3/2) or Ḃ2,∞−s (0