Abstract
The resistivity, thermopower and thermal conductivity of a two-dimensional electron gas (inversion layer) in high magnetic field has been calculated using the Kubo formula. It has been found that all transport coefficients are universal functions of the reduced temperature kBT/h(cross) omega c and the reduced chemical potential mu /h(cross) omega c, provided that the thermal broadening kBT is substantially greater than the width of the Landau levels.