Pre-burst events of gamma-ray bursts with light speed variation

Previous researches on high-energy photon events from gamma-ray bursts (GRBs) suggest a light speed variation v(E)=c(1?E/ELV) with ELV=3.6×1017 GeV, together pre-burst scenario that hight-energy photons come out about 10 seconds earlier than low-energy at the GRB source. However, in Lorentz invariance violating an energy dependent considered here, travel slower due to variation, so they are usually detected after observed data. Here we find four which were Fermi Gamma-ray Space Telescope (FGST), and analysis these supports of high GRBs dependence listed above.