%0 Journal Article %T Gamma-ray burst models with general dynamics and fits to Fermi LAT bursts %A P¨¦ter Veres %A P¨¦ter M¨¦sz¨˘ros %A Bin-Bin Zhang %J Physics %D 2013 %I arXiv %X We present a dissipative photospheric model for gamma-ray bursts where the usual Band peak around MeV energies arises as synchrotron emission from around the photosphere. We treat the initial acceleration in a general way and the GeV emission arises as the interaction of photospheric radiation and the shocked electrons at the deceleration radius. We show some applications of this model. %U http://arxiv.org/abs/1309.0771v2